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Final Plat_Sky Blue Estates
Masterpiece on the Mississippi TO: The Honorable Mayor and City Council Members FROM: Michael C. Van Milligen, City Manager SUBJECT: Final Plat Sky Blue Estates DATE: July 10, 2012 Dubuque bierd All-America City 1 2007 Planning Services Manager Laura Carstens is recommending approval of the final plat of Sky Blue Estates, subject to waiving the street paving width and right -of -way width for Golden Eagle Drive, Cobalt Court and Zephyr Drive. I concur with the recommendation and respectfully request Mayor and City Council approval. Michael C. Van Milligen MCVM:jh Attachment cc: Barry Lindahl, City Attorney Cindy Steinhauser, Assistant City Manager Teri Goodmann, Assistant City Manager Laura Carstens, Planning Services Manager THE CITY OF Masterpiece on the Mississippi TO: Michael Van Milligen, City Manager FROM: Laura Carstens, Planning Services Manager j--60,---) SUBJECT: Final Plat Sky Blue Estates DATE: July 10, 2012 Dubuque kabl All- Amenca City [l Ii 17 INTRODUCTION This memorandum transmits the Final Plat of Sky Blue Estates, a resolution, and related materials for City Council review and approval. 2007 The submitted Final Plat of Sky Blue Estates is the first phase in the new subdivision adjacent to Eagle Valley Subdivision off Roosevelt Road. The City Council reviewed and approved the preliminary plat for this subdivision, but at that time it was named Orchard Park Subdivision. DISCUSSION The submitted Final Plat of Sky Blue Estates subdivides approximately 16.9 acres into 25 single - family lots. The Final Plat includes the extension of Golden Eagle Drive and the construction of three new public streets to be named Sky Blue Drive, Cobalt Court and Zephyr Drive. Sky Blue Drive will be built to the City standard of 31 -foot paving and 50 -foot right -of -way to serve as a collector street. Golden Eagle Drive, Cobalt Court and Zephyr Drive will be built with 27 -foot of paving and a 42 -foot right -of -way, with parking on one side only. Extension of water will be from Roosevelt Road and be extended throughout the subdivision. Sanitary sewer will be extended up from Eagle Valley Subdivision. The submitted Final Plat shows the future location of the new City water tower on Lot 1 of Orchard Park Place. The subject building lots will range in area from 5,600 to approximately 10,000 square foot. Sky Blue Estates Final Plat Page 2 The subject subdivision complies with the Unified Development Code's 40 points of sustainability by having more than 70% of the lots meeting the solar lot criteria, reduced paving width of streets that contributes to less storm water runoff, and the developer will be planting street trees in compliance with the City's Street Tree Planting Policy. RECOMMENDATION Staff recommends approval of the resolution for the Final Plat of Sky Blue Estates as it is in compliance with the City of Dubuque Unified Development Code, subject to waiving the street paving width and right -of -way width for Golden Eagle Drive, Cobalt Court and Zephyr Drive. Prepared by Kyle L. Kritz, Associate Planner Enclosures cc: Gus Psihoyos, City Engineer Bob Green, Water Department Manager Marie Ware, Leisure Services Manager Prepared by: Laura Carstens, City Planner Address: City Hall, 50 W. 13th St Telephone: 589 -4210 Return to: Kevin Firnstahl, City Clerk Address: City Hall, 50 W. 13th St Telephone: 589 -4121 RESOLUTION NO. 186 - 12 A RESOLUTION AUTHORIZING APPROVAL OF THE FINAL PLAT OF SKY BLUE ESTATES IN THE CITY OF DUBUQUE, IOWA Whereas, there has been filed with the City Clerk a Final Plat of Sky Blue Estates in the City of Dubuque, Iowa; and Whereas, upon said final plat appear streets to be known as Golden Eagle Drive (Lot B), Cobalt Court (Lot C), Zephyr Drive (Lot D) and Sky Blue Drive (Lot E) together with certain public utility, storm sewer and water main easements, which the owner by said final plat has dedicated to the public forever; and Whereas, the preliminary plat has been examined by the Zoning Advisory Commission and its approval has been endorsed thereon; and Whereas, said final plat has been reviewed by the City Planner and her approval has been endorsed thereon, subject to the owner's agreeing to the conditions specified herein; and Whereas, said final plat has been examined by the City Council and the City Council find the final plat conforms to the applicable statutes and ordinances, except that streets and public utilities have not yet been completely constructed or installed. NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF DUBUQUE, IOWA: Section 1. That the dedication of Golden Eagle Drive (Lot B), Cobalt Court (Lot C), Zephyr Drive (Lot D) and Sky Blue Drive (Lot E) and the easements for public utilities, storm sewer and water mains, as they appear on said final plat, be and the same are hereby accepted; and Final Plat — Blue Sky Estates Page 2 Section 2. That the Final Plat of Sky Blue Estates is hereby approved and the Mayor and City Clerk are hereby authorized and directed to endorse the approval of the City of Dubuque, Iowa, upon said final plat, provided the owners of said property herein named, execute their written acceptance of the attached conditions and further agree: (a) To reduce Golden Eagle Drive (Lot B), Cobalt Court (Lot C), Zephyr Drive (Lot D) and Sky Blue Drive (Lot E) to grade and to construct longitudinal sub - drain, concrete curb and gutter with asphaltic concrete pavement or with Portland Cement concrete pavement with integral curb, all in accordance with the City of Dubuque standard specifications in a manner acceptable to the City Engineer, in conformance with construction improvement plans approved by the City Engineer, and inspected and approved by the City Engineer. (b) To install sanitary sewer mains and sewer service laterals into each individual lot, water mains and water service laterals into each individual lot, storm sewers and catch basins, boulevard street lighting, fiber optic conduit, and erosion control devices all in accordance with the City of Dubuque standard specifications in a manner acceptable to the City Engineer, and in accordance with construction improvement plans approved by the City Engineer, and inspected and approved by the City Engineer. (c) To construct accessible sidewalk ramps at each intersection in accordance with City of Dubuque Standards and Specifications. (d) To construct the improvements outlined in (a) and (b) above within two years from the date of acceptance of this resolution, at the sole expense of the owners, or future owner. (e) To maintain the improvements outlined in (a) and (b) above for a period of two (2) years from the date of the acceptance of those improvements by the City Council of the City of Dubuque, Iowa, at the sole final expense of the owners, or future owner; (f) To provide security for the performance of the foregoing conditions specified in this Section in such form and with such sureties as may be acceptable to the City Manager of the City of Dubuque, Iowa. Section 3. That sidewalk installation shall be the responsibility of each lot owner for each lot abutting the public rights -of -way, including lots with multiple frontages, as required by City Code Chapter 10 -1 -2 (Sidewalk Installation and Repair). Final Plat — Blue Sky Estates Page 3 Section 4. That the owner must construct and maintain erosion control devices in Sky Blue Estates which control erosion and prevent sediment from leaving the site. The owner shall also be responsible for maintenance of the detention facility located on Lot G of Eagle Valley Subdivision until 80% of the lots shown on the preliminary plat of in Sky Blue Estates, which drain into said detention facility, have been fully developed and adequate erosion control measures, as approved by the City Engineer, have been installed on the remaining 20% of said Tots. Until the above 80% of Tots are developed, maintenance of the detention facilities in Lot G Eagle Valley Subdivision shall include the removal of sediment and other debris caused by construction activities in Sky Blue Estates and reshaping and reseeding of the disturbed areas. After said 80% lots are developed, inspection, administration, and maintenance expenses incurred by the City of Dubuque for the storm water detention facility on Lot G of Eagle Valley Subdivision shall be assessed against the property owners, except the City of Dubuque, in Eagle Valley Subdivision and Sky Blue Estates as indicated on the preliminary plats thereof, in equal amounts. The City Manager shall certify such costs to the City Clerk, who in turn shall promptly certify such costs to the Dubuque County Treasurer, and such costs shall then be collected with and in the same manner as general property taxes in accordance with provisions of law. Section 5. That the planting of street trees shall be coordinated with the City Forester. Any trees planted within the street right -of -way must be chosen and planted by the City of Dubuque Leisure Services Department at the developer's expense. Section 6. That the final acceptance of the public improvements shall only occur upon certification of the City Engineer to the City Council that the public improvements have been completed in accordance with the approved improvement plans and City standards and specifications and accepted by City Council Resolution. Section 7. That in the event EKM, LLC fails to execute the acceptance and furnish the guarantees provided hereof within 180 days after the date of this Resolution, the provisions hereof shall be null and void and the acceptance of the dedication and approval the plat shall not be effective. Passed, approved and adopted this 16th day of July Attest: Kevin S irnstahl, City CI 2012. Roy D. `• uol, Mayor ACCEPTANCE OF RESOLUTION NO. 186 -12 I, the undersigned, James P. Kemp, representing EKM LLC, having read the terms and conditions of the Resolution No. 186 -12 and being familiar with the conditions thereof, hereby accept this same and agree to the conditions required therein. Dated in Dubuque, Iowa this 02 Oday of c-5'e, 2012. 0 1212 LOCUST STREET, DUBUQUE, IOWA 52001 Ix 0 BUESING & ASSOCIATES PREPARED BY: LOT 5 100.43 (1130.2) 16363' LOT 1 ORCHARD PARK PUCE 3 serigsrmL 13.85' I-6 02 5- 3. P". 17.5 1- -J 10.1 cn A46.06' (8.2) (53.02) 41 COSTING . 10.00' PL/E-AA (Th..) CUEDEI/ALA 06.8700. 54232212 01.01ST. 28.28' RAD. 20.00' ARC LEN. 31.40' DELTA 900202 ---- 6 ORCHARD LOT 4 90.22' (96.25) S824813'7 50.12 BhE*0R7 57E N823222E 86.33 25 11,404 SF 10' PUE /18237'20T 134.94 26 9705 SF 146232212E 34.64 I'LE 27 tO 81 9683(8. 28 18 1 M. I L -J 1 Ig 1° r1 28 46630' 1 1 N.--3,34L3S.033.--41P 1 LOT 2 1 I 739.8. 4012.8.4 983. 99.9 9 LOT 3 "'XV"' LyuE LOT 2 7502 .1 CPI 24 0550 SF - 5500' 6t0,7 23 22 4 56.3. g. Kg 504340' 1 84.02 'Tod 72. .02) 1LOT 1 1 2 6372 SF g 7 110.62 18.001 ,42 LOT 3 101 2 Final Plat of: SKY BLUE ESTATES IN THE CITY OF DUBUQUE, DUBUQUE CippNTY, IOWA. Comprised of: LOT 2 OF ORCHARD PARK PLACE, IN THE CITY OF DUBUQUE, DUBUQUE COUNTY, IOWA. LOT 1 485.67' (488.19') 98254'33'E 1026.75' (1027.72) 04301 21 4 5884 SF iTacr LOT F 10.426 AC a 20 4 5684 SF 7 BLOCK 1 OR D HILLS LOT 8 840.92 582322216 720.00' LOT 7 LOT 2-1-1-1-4 LEK LOT 312 270.43' 65' X 62' 713478.0404 EASEUENT FOR 113470805Y CUL-DE-SAC. SATO EASEUSIT MIRES UPON 1116 FUTURE EXTENSOR ARO DEOICA11011 OF ZEPHYR DR. - ZEPHYR c,•„' 1LOT D DR. 1 _ 3889 I - gar 18 44 g l . rv c d 17 - 3693, 2 3 - S F o _ 5 - - - - 4- - 4- 2 6400 19 ° g 5864 SF 65s . 72. 71. 14,2 ?.. 0r :.1 3 4 4 q ens 8372 SF 6372 0' 0, ) 760Y/ LOT 4 OCK 2 736.2. VALLEY 97 LOT 5 NOTES 1. ALL MEASUREMENTS ARE IN FEET AND DECIMALS THEROF. 2. OWNER Se PROPRIETOR OF: LOT 2 OF ORCHARD PARK PLACE (1107101012) EKM LLC c/o James P. Kemp 8364 Kane Rd. Dubuque, IA 52003 3. LOT 2 IS LOCATED IN THE NW 1/4 OF SECTION 7, T89N, R3E, OF THE 5-11-1 P.M., DUBUQUE COUNTY, IOWA. 4. SURVEY REQUESTED BY: RICK EHRLICH 5. THIS PLAT IS SUBJECT TO EASEMENTS OF RECORD AND NOT OF RECORD. LOT 8 5664 S - 5684 SF -ear. - V I. - 6 7-2'6 236 0 4 S A S3.2401 1' • I 5823220 1 LOT 1 . E- -1 1 o a 4 315301_ . 1 Y 2 7P3 r 16 8552 F 4 1' 4 7088 S 15 .6, 6994 0' 5.26 80 • 7 . San 2 729.26 L 0:LC GGaAET -CT.- - - 237'20W 702 72 ' 7 e2 9 S 1334.96' (1 LOT 2 728. 4.95') LOT 3 -7 U0 7001E r 8 6372 F ° (726.00') LOT 4 g 5 10 63720' 83720' 7 72. 7 107 5 ALLEY S08. .2 LEGEND LOT 6 LOT 7 72. 11 ! 6372 SF o 7.g.r.:st;r2.1.) LOT 1 LOT 3 ,A1P4 .4. - LOT 10 O IRON PIPE (IP) (FOUND) SIZE AS NOTED • 5/8- REROD (FOUND) CAPPED AS NOTED 4016 YELLOW CAP STAMPED "4016° 15487 ORANGE CAP STAMPED "15487" O 1/2° REROD (FOUND) • CONCRETE MONUMENT (FOUND) PROPERTY LINE SURVEYED PROPERTY LINE CENTERLINE RIGHT OF WAY (ROW) EASEMENT LINE RECORD DIMENSION O 5/8" REROD (PLACED) (ORANGE CAP STAMPED "15487") PUE PUBLIC UTILITY EASEMENT STE STORM SEWER EASEMENT SSTE SANITARY & STORM SEWER EASEMENT 10,416 SF LOT 11 61001 No LOT 4 Tik LOT 5 LOT .59.36.5rE 31.71' (32.65) 1.33 364, 0. • S 224.2.2E • \ • 11.53' 9 ' LOT 12 1 EAGLE VALLE 03 suk (20292) LOT 13. c4 LOT 7 LOT 10 • 4 SCALE 1" = 150' 0' 75' 150' SURVEYED PERIMETER TOTAL AREA = 16.973 AC. CURVE DATA CURVE CHORD BEARING CHORD LENGTH RADIUS ARC LENGTH DELTA C1 N42'3720"E 28.28' 20.00' 31.42 9000'00" C2A N552329"E 48.00' 45.00' 50.63' 6427'43" C28 N 9'04'1 4"W 48.00' 45.00' 50.63' 642743" C2C N71'18'05"W 45.00' 45.00' 47.12' 6000'00" C2D S4544'28"W 48.96' 45.00' 51.77' 6554'53" C3 S501 2.11"W 24.31' 20.00' 26.12' 7450'19" C4 S4772.40"E 28.28' 20.00' 31.42' 9000'00" C5 N42'37.20"E 28.28' 20.00. 31.42' 9000'00" C6 S4722'40"E 28.28' 20.00 31.42' 9000'00" 07 N42'37.20"E 28.28' 20.00' 31.42' 9000'00" C8 N4722'40"W 28.28' 20.00' 31.42' 90'00'00" C9 N7912'26"E 29.27' 100.00' 29.37' 16'49'48" C10 S4722.40"E 28.28' 20.00' 31.42' 90'00'00" DRAWN BY: CHECKED BY: REVISIONS SEE BAR SCALE LAND 62.° ° •P cci 0 o: TERRY L. *03 KOELKER ==. 0. 15487 0 IlluittilitMO" I HEREBY CERTIFY THAT THIS LAND SURVEYING DOCUMENT WAS PREPARED AND THE RELATED SURVEY WORK WAS PERFORMED BY ME OR UNDER MY DIRECT PERSONAL SUPERVISION AND THAT I AM A DULY LICENSED LAND SURVEYOR UNDER TFIE LAWS OF THE STATE OF IOWA. ALL MONUMENTS ARE PLACED OR SHALL BE PLACED WITHIN ONE YEAR FROM THE ATE THIS PLAT IS RECORDED. // //Z TERRY L. KOELrenR (DATE) LICENSE NUMBER: 15487 MY LICENSE RENEWAL DATE IS DECEMBER 31, 2013 SHEETS COVERED BY THIS SEAL : SHEETS 1, 2, & 3 SHEET TITLE SHEET OF U 64.00' N N 19 9) ▪ 5664 SF o O PI (0 M N w z 0 0 cc 0 O 0 0 a Lel0 z m ea m O w 0c 0_ 0' 0 LOT 5 180.43' (180.5') (,oasis) .17T6ZC z is N 719j - - -- ---cam 0 co rn J O rn (.o's«) .tis'602 185.83' 5.40' LOT 1 ORCHARD PARK PLACE S8722.55" W_ 53.00' Q N 53' BL•CK 5 ORCHARD HLLS N N N N 0 O m N 0 0) W EXISTING 10.00' PUE- (TYP.) CURVE DATA CH.BEAR. S42'37'20 "W CH.DIST. 28.28' RAD. 20.00' ARC LEN. 31.42' DELTA 90'00'00" S8T37'20 "W 111.52' m 4, 1- 15487 LOT 4 90.22' (90.25') S87'48'13 "E 50.16' 0 LIOTE - S K - Y - B L U E - v ▪ DR 111,851 SF ou N87'37'20 "E C9- f- co N J L>_.I 0 W 0 "- 8.06' (8.2') J N 0 0 J 0 O L- r w O 86.33' 0, O 25 rn 11,494 SF ° 10'_„,,4 PUE N87'37'20 "E 134.94' 9 T SF N87'37'20 "E 134.64' 10' PUE 27 fw 9683 SF m - N87=37 2TE - - - -� J N O 0 J N 0 0 O 9863 SF 53.00' 'sr_ -- (53.00') LOT 2 BLOCK 1 EAGLE VALLEY SUB. 4I' LOT 3 h •••••"q a) 0 0 .co N 42'00' N82'10'55 "E 42.19' 10' PUE r *CO 0 LOT 2 75.00' 24 a 6552 SF o cc5' 55.00' 0o N _ O 0 99.97 0< w 0) Vt O ( 64.00 64.00' w N 23 5664 SF fTl co 9) cn O 1 °° 7348 SF o 84.00' 00.00') ee LOT 1 64.00 N N N 0_ 64.00' U! 22 00 00 5664 SF o LOT 1 485.67' o (486.19') LOT 8 840.92' N87'54'33 "E 1026.75' (1027.79') 64.00 , CO. LOT F 10.426 AC 58737'20 "W 720.00' 64.00' f (0 21 N 5664 SF O a CO 0 64.00' v- 4, - - -Co 1E rn m 72.00' N 2 94 4, 6372 SF o rri 72.00' 72.00' N 3 0) 4, 6372 SF o m • • 116.00') Bps. LOT 3 LOT 2 LOCK 2 EA 72.00' LOT 4 64.00' V) N 20 5664 SF fTl 00 CO *CO 0 64.00 72.00' N N 4 9' 6372 SF o r<i 72.00' • E VALLEY SU LOT 5 64.00 r • S87'37'20"WT72/9+.26' LOT _0 -- - --COB ��l C�. - - - -- 39,239 SF 87'37'20 "W 792.'x' • 64.00' N 1° 9' 5664 )SF o i 64.00' LOT 7 LOT 2- 1 -1 -1 -4 MIN. LOT 312 270.43' SCALE 1" = 80' 0' 40' 55' X 62' TEMPORARY EASEMENT FOR TEMPORARY CUL -DE -SAC. SAID EASEMENT EXPIRES UPON THE FUTURE EXTENSION AND DEDICATION OF ZEPHYR DR. --=11 r-31 -- ZEPHYR DR. 64.00' N N N 17 • 5664 SF 0 0o 94 w O 64.00 75.00' , 10' PUE-°. N N 16 6552 SF O 76.00' N 510 J Ico N 6726 SF Ico N I o St °' J r F �- , i 76.00' / 56.05' / ' LOT 6 76.00' 1° --10' 6 I. Doll: 6726 SF 0' 01" O 01 °-10 Jm S37'47'11 "W 36.46' 76.00' Ul N N 0 m S87'37'20" 1334.98' (1 LOT 1 LOT 2 72.00' 55.00' 72.00' 0' N O Uf 0 42.'10' N N N • m 19) CT 1 41?' 82.00' 80' 0 LOTD 3889 SF = 80.00' cn 10' N PUE N 15 N 4, ° 6994 SF m t cR - 60.00' 72.00' 0o co 01 O ss 29..26- -0 4, -0 C-0 -1.1-c me - 0) 7 N N 6372 SF (no. K148 m SN 0 N 6 6372 SF 0 0 ('1 72.00' 72.00OT 3 ' 728.97'. (729.00') L 34,95') • EAGLE LOT 4 • 9 6372 SF 72.00' LOT 5 ALLEY SUB. 0. 2 co 0 72.00 N 10 N • 6372 SF 72.00' • LOT 6 LOT 7 DRAWN BY: J 0 CHECKED BY: J H H 0 SEE BAR SCALE 0 0 z 1- U w 0 ct 0 SHEET TITLE 0 J m� d w Q O W Y : ° 0 �M0 0(00' w 0 O CL 2 SHEET OF BLOCK 1 ORCH RD HILLS LOT 2- 1 -1 -1 -4 MIN. LOT 312 270.43' N87'54'33 "E 163.60' (162.45') 840.92' SCALE 1" = 80' N87'54'33 "E 1026.75' (1027.79') 10.426 AC 55' X 62' TEMPORARY EASEMENT FOR TEMPORARY CUL -DE -SAC. SAID EASEMENT EXPIRES UPON THE FUTURE EXTENSION AND DEDICATION OF ZEPHYR DR. ZEPHYR DR. S87'37'20 "W 720.00' 64.00' 64.00' 64.00' 75.00' 1 10' PUE-°I 42:00' 20 5664 SF 18 5664 SF 17 5664 SF LOT 1 -12 64.00 64.00" 64.00' 64.00 55.00' N59'36'58 "E 31.71' (32.68') 87'37'20 "W 792 72.00' 72.00' 76.00' 76.00' 72.00' 72.00' 72.00' 72.00' LOT 11 3 6372 SF 8 6372 SF 11 6372 SF 2'24'29 "E 11.53' 72.00' 72.00' 72.00' 72.00' 728.97 (729.00') LOT 3 LOT 4 72.00' 72.00' 90.92' 203.0 122.95' (202.92') LOT 10 16.00') tp,6 1334.98' (1 LOT 2 LOT 10 LOT 11 LOT 12 LOT 13 BLOCK ' EAGLE VALLE4( SU Sheet 4 of 6 Surveyor's Certificate I, Terry L. Koelker, a Duly Licensed Land Surveyor in the State of Iowa, do hereby certify that the following real estate was surveyed and platted by me or under my direct personal supervision, To Wit: LOT 2 OF ORCHARD PARK PLACE, IN THE CITY OF DUBUQUE, DUBUQUE COUNTY, IOWA. This survey was performed for the purpose of subdividing and platting said real estate henceforth to be known as SKY BLUE ESTATES IN THE CITY OF DUBUQUE, DUBUQUE COUNTY, IOWA. The Total area of SKY BLUE ESTATES is 16.973 acres. All Lot areas are more or less and all Lots are subject to easements, reservations, restrictions, and rights -of -way of record and not of record, the plat of which is attached hereto and made a part of this certificate. I hereby certify that this land surveying document was prepared and the related survey work was performed by me or under my direct personal supervision and that I am a duly licensed Land Surveyor under the laws of the State of Iowa. All monuments are placed or shall be placed within one year from the date this plat is recorded. Terry L. oelker Date Licensed Land Surveyor License No. 15487 Owner's Consent Dubuque, Iowa License Renewal Date 12/31/13 770 , 2012 The foregoing Final Plat of: SKY BLUE ESTATES is made with the free consent and in accordance with the desires of the undersigned owners and proprietors of said real estate. We hereby dedicate LOT A (ROOSEVELT ST.), LOT B (GOLDEN EAGLE DR.), LOT C (COBALT CT.), LOT D (ZEPHYR DR.), LOT E (SKY BLUE DR.), and all easements shown to the public. EKM Inc. cAuliffe ner State of Iowa ) County of Dubuque ) ss: On this Y day of , AD 2012, before me the undersigned, A Notary Public in and for the State of Iowa, personally app ared Jeff McAuliffee, to me personally known, who, being duly sworn did say that said Jeff McAuliffee is an owner of EKM Inc., that the seal affixed to the above instrument was signed and sealed on behalf of said Corporation by authority of its Board of Directors, and that said Jeff McAuliffee, acknowledged the execution of said instrument to be the voluntary act and deed of said Corporation by it voluntarily executed. Witness my hand and Notarial Seal on the date above written. ALMA L. ERDMANN Commission Number 73270 My Comm. Exp. — - Notary Public in and for the State of Iowa Sheet 5 of 6 Attorney's Certificate Dubuque, Iowa , 2012 TO WHOM IT MAY CONCERN: This will certify that I have examined the abstract of title covering LOT 2 OF ORCHARD PARK PLACE, IN THE CITY OF DUBUQUE, DUBUQUE COUNTY, IOWA, according to plats thereof covering the period from government entry to certified on that date by and find that said abstract shows good and merchantable title to said real estate in free and clear of all liens and encumbrances and shows taxes paid including taxes for the year Attorney -at -Law City of Dubuque Planning Services Dubuque, Iowa J - y , 2012 The foregoing Final Plat of: SKY BLUE ESTATES, and the dedication of LOT A (ROOSEVELT ST.), LOT B (GOLDEN EAGLE DR.), LOT C (COBALT CT.), LOT D (ZEPHYR DR.), LOT E (SKY BLUE DR.), and all easements shown to the public, is hereby approved by City Planner of the City of Dubuque, Iowa and approval of said plat by the City Council of the City of Dubuque is hereby recommended. Planning Services Department By: (mac Z City Planner of the City of ubuque, IA City of Dubuque, Iowa Dubuque, Iowa July 16 , 2012 The undersigned, Roy D. Buol, Mayor and Kevin Firnstahl, Clerk of the City of Dubuque, Iowa, do hereby certify that the foregoing Final Plat of: SKY BLUE ESTATES, and the dedication of LOT A (ROOSEVELT ST.), LOT B (GOLDEN EAGLE DR.), LOT C (COBALT CT.), LOT D (ZEPHYR DR.), LOT E (SKY BLUE DR.), and all easements shown to the public, as appears heretofore has been filed in the office of the City Clerk of Dubuque, Iowa on J n 1 y 1 6 , 2012 as resolution No. 186 -12 and that the City Council of the City of Dubuque, Iowa approves said plat. Dubuque, Iowa f the City of Dubuque, IA E -911 Coordinator , 2012 The foregoing Final Plat of: SKY BLUE ESTATES has been reviewed by the E -911 Coordinator and the streets Cobalt Ct., Zephyr Dr., & Sky Blue Dr., are established and approved. Approval of street names does not indicate an acceptance of said streets or roads as a part of the public street system. E -911 Coordinator Jeff Miller Sheet 6 of 6 County Treasurer's Certificate Dubuque, Iowa , 2012 I, the undersigned, Eric Stierman, Treasurer of Dubuque County, Iowa, do hereby certify that all taxes levied against LOT 2 OF ORCHARD PARK PLACE, IN THE CITY OF DUBUQUE, DUBUQUE COUNTY, IOWA, have been paid and said real estate is free from taxes as of this date. Treasurer of Dubuque County, Iowa COUNTY AUDITOR Dubuque, Iowa , 2012 The foregoing Final Plat of: SKY BLUE ESTATES was entered of record in the office of the Dubuque County Auditor this day of , 2012. We approve of the subdivision name or title to be recorded. County Auditor of Dubuque, Iowa City Assessor's Certificate Dubuque, Iowa 2012 The foregoing Final Plat of: SKY BLUE ESTATES was entered of record in the Office of the City Assessor of the City of Dubuque, Iowa, on the date first written above. City Assessor of the City of Dubuque, Iowa Recorder's Certificate Dubuque, Iowa , 2012 The foregoing Final Plat of: SKY BLUE ESTATES has been reviewed by the Dubuque County Recorder. Dubuque County Recorder THE CITY OF Duu ❑ Variance ❑ Conditional Use Permit ❑ Appeal ❑ Special Exception ❑ Limited Setback Waiver PLANNING APPLICATION FORM ❑ Rezoning ❑ Planned District ❑ Preliminary Plat ❑ Minor Final Plat ❑ Text Amendment Please type or print legibly in ink ❑ Simple Site Plan ❑ Minor Site Plan ❑ Major Site Plan • Major Final Plat ❑ Simple Subdivision Property owner(s): EKM, LLC. c/o Jeff McAuliffe Address: 9393 Kemp Rd. City: Dubuque City of Dubuque Planning Services Department Dubuque, IA 52001 -4864 Phone: 563-589-4210 Fax: 563 - 589 -4221 ❑ Annexation ❑ Temporary Use Permit ❑ Certificate of Economic Non - Viability ❑ Certificate of Appropriateness ❑ Other: Phone: 590 -5547 State: IA Zip: 52003 Fax Number: Mobile /Cellular Number: 590 -5547 Applicant /Agent: Phone: Address: City: Fax Number: Mobile /Cellular Number: Site location /address: Off of Roosevelt St., North of Eagle Valley Sub. State: Zip: Existing zoning: R -1 Proposed zoning: Historic District: Landmark: Legal Description (Sidwell parcel ID# or lot number /block number /subdivision): 1107101012 Lot 2 of Orchard Park Place Total property (lot) area (square feet or acres): 17.0 acres Describe proposal and reason necessary (attach a letter of explanation, if needed): The proposal is to construct new residential subdivision CERTIFICATION: I /we, the undersigned, do hereby certify that: 1. 2. The information submitted herein is true and correct to the best of my /our knowledge and upon submittal becomes public record; Fees are not refundable and payment does not guarantee approval; and 3. All additional required written and graphic materials are attached. Property Owner(s): a-k/•17 4. C ,710W Applicant /Agent: J " Date: Date: 6://eVt° _ FOR OFFICE USE O Y A • P .'ATION SUBMITTAL CHECKLIST Fee: 7▪ 20 .a2 Received by: / Date: 4 • B / ZDocket: ❑Site /sketch plan ❑Conceptual Develop ent Plan ['Photo ❑Plat ❑Improvement plans ❑Design review project description ['Floor plan [Other: SUBDIVISION STAFF REPORT Project Name: Property Owner: Applicant: Final Plat of Sky Blue Estates EKM, LLC Jeff McAuliffe Number of Lots: 28 Acreage in R.O.W: 1.5 acres Total Area: 16.9 acres In City: Yes In 2 -Mile Area: N/A Flood Plain: No Density Allowed: 1/5,000 sq. ft. Commonly owned lots: None Sanitary Sewer: Yes Water: Yes Storm Sewer: No Existing Street Access: Yes Proposed Land Use: Residential Existing Land Use: Vacant Adjacent Land Use: North — Residential East — Residential South — Residential West — Vacant Proposed Zoning: N/A Existing Zoning: R -1 Adjacent Zoning: North — R -1 East — R -1 South — PR West — AG Physical Characteristics: The subject property is located between Eagle Valley Subdivision to the south and Orchard Hills Subdivision to the north. The subdivision was previously named Orchard Park Subdivision. The property has frontage on Roosevelt Road with access from stub streets from Eagle Valley Subdivision (Golden Eagle Drive) and Orchard Hills Subdivision (Baldwin Drive). The property generally slopes to the southeast and is currently vacant. Proposed Phasing: Phase 1 of 3. Previous Conditions of Zoning or Plats: None. Dedication of Open Space or Public Amenities: None. Proposed Streets and Grades: Sky Blue Drive — 1.5% to 7 %; Cobalt Court — 1.75% to 8 %, Golden Eagle Drive — 1.5% to 9% and Zephyr Drive — 1% to 4 %. Recommended Motion: Planning staff recommends approval of the submitted Final Plat of Sky Blue Estates subject to waiving right -of -way and street width requirements for Golden Eagle Drive, Cobalt Court and Zephyr Drive. The Final Plat is in all other respects in compliance with the City of Dubuque Subdivision Regulations. Subdivision Staff Report — Final Plat of Sky Blue Estates Page 2 Conformance with Comprehensive Plan: The proposed subdivision involves the Comprehensive Plan Land Use Element Goals 1.2, 1.5, 1.10, 4.3, 7.2 and 9.4. and Transportation Goals 1.2 and 1.3. Impact of Request on: Utilities: Sanitary sewer and storm water can be extended to the site and are sufficient to serve the subdivision. An existing water main within the Roosevelt right -of -way is available to serve this site. Improvements may be necessary to the existing water system provide sufficient water pressure throughout the proposed subdivision. Any public improvements are subject to availability of funding and approval by the City Manager and City Council. The approval for construction of this subdivision is subject to the design plans for service being approved by the Iowa Department of Natural Resources. Traffic Patterns: The primary access to the subdivision will be from Roosevelt Road. Roosevelt Road is classified as a minor arterial and carries approximately 2,900 average daily trips south of the proposed subdivision and 3,200 average daily trips west of the this subdivision based on 2005 IDOT counts. Public Services: Existing public services are adequate to serve the site. Environment: Staff does not anticipate any adverse impact to the environment provided adequate erosion control is provided during all phases of development of the property. Adjacent Properties: The most likely impact to adjacent properties will be an increase in vehicle trips on Baldwin Drive, Jonathan Lane and Shiras Avenue, when subsequent phases of the subdivision are completed. Planning staff notes that residents of the Orchard Hills Subdivision may also utilize the new streets in the proposed Sky Blue Estates to access Roosevelt Road in the future. Recommended Conditions on Plat: None. Staff Analysis: The submitted Final Plat of Sky Blue Estates subdivides an existing 16.9 -acre parcel into 28 lots platted for single - family homes. The Preliminary Plat was approved on April 19, 2010. At that time the name of the subdivision was Orchard Park. Access to the subdivision will be primarily from Roosevelt Road where the roadway transitions from a north -south orientation to an east -west orientation. A future phase of the subdivision includes an access to Baldwin Drive, which is part of the Orchard Hills Subdivision Staff Report — Final Plat of Sky Blue Estates Page 3 Subdivision. This stub street was platted as part of the original Orchard Hills Subdivision to allow for the continued extension of the City street system. The Fire Department has provided a memorandum that supports this connection as it will allow an alternative access to the homes in Orchard Hills Subdivision as well as along Shiras Avenue. Currently, there are 161 homes that have only one means of access in case of emergency in this area. It has long been a City policy to look for secondary access when either the number of dwelling units exceeds approximately 40 units or a cul -de -sac length of 1,200 feet is exceeded. Currently, Shiras Avenue from Lincoln Avenue to the intersection of Eagle Point Drive and Orchard Drive is 5,500 feet long. Measuring to the northernmost point of Orchard Drive yields a distance of approximately 6,535 feet or about 1.25 miles. Planning staff understands that this connection from Roosevelt Road to Baldwin Drive will allow some motorists to access Eagle Point Park through the two subdivisions. However, Planning staff notes that the new connection would also save existing residents of Orchard Hills and Shiras Avenue travel time as they will be able to access Roosevelt Road through the new Sky Blue Estates Subdivision. The fact that Baldwin Drive was platted as part of the original Orchard Hills Subdivision's illustrates that the street was to be extended in the future. In addition, staff has found a copy of the Final Plat of Orchard Hills No. 2 dated January 24, 1966 which extended Baldwin Drive and included accesses to Roosevelt Road. The proposed subdivision includes a public street that will be built to the City's standard residential cross - section of the 31 -foot wide paving width and a 50 -foot right -of -way (Sky Blue Drive) as well as a reduced street cross section (a 27 -foot paving width) with a 42 -foot right -of -way (Golden Eagle Drive, Cobalt Court, and Zephyr Drive). The applicant is using the smaller cross section street on the interior of the subdivision while using the standard residential street design for the connection between Roosevelt road and Baldwin Drive. The smaller cross section street will be restricted to parking on one side. The developer is proposing the smaller street to help in offering the proposed housing at a more affordable price as well as complying with the City's sustainability requirements for new subdivisions. The 27 -foot street cross - section is restricted to parking on one side. The 27 -foot wide residential street has been approved in several recent subdivisions. Eagle Valley, Timber -Hyrst and North Fork Trails have all been approved with the smaller street cross section. The reduced right -of -way width of 42 -foot has been approved as part of Westbrook Subdivision and Eagle Valley Subdivision. The proposed 31 -foot street (Sky Blue Drive) will function as a collector street and connect in the future with Baldwin Drive. Parking will be restricted to one side only. The proposed subdivision, when fully built out, will generate approximately 608 average daily vehicle trips. Roosevelt Road carries 2,900 ADTs south of the proposed subdivision and 3,200 ADTs west of the subdivision based on 2005 IDOT counts. Subdivision Staff Report — Final Plat of Sky Blue Estates Page 4 The proposed subdivision can be served with City water, sanitary sewer and storm sewer. Both storm sewer and sanitary sewer access is available in the southeast corner of the proposed subdivision where these two utilities are stubbed from the adjacent Eagle Valley Subdivision. Water service can be taken from Roosevelt Road and will be extended throughout the subdivision and interconnected with the water main in Baldwin Drive. The Water Distribution Division has indicated that depending on how the subdivision is graded, that additional improvements to the water system may be necessary to ensure sufficient water pressure throughout the subdivision. Any necessary public improvements are subject to funding availability and approval by the City Manager and City Council. The Water Department noted that approval for construction of this subdivision is subject to the design plans for service being approved by the Iowa Department of Natural Resources. The proposed subdivision has a density of 3.78 dwelling units per acre, while the previous proposal (McDonald Subdivision) had a density of 5.4 dwelling units per acre. As a comparison, Eagle Valley, when fully developed, will have a density of 4.72 dwelling units per acre. The existing Orchard Hills Subdivision has a density of 2.96 dwelling units per acre. Planning staff has discussed the dedication of property within the subdivision for a small neighborhood park. The developer offered the 3.3 acre parcel east of the site for both water detention and a park area. The Leisure Services Department reviewed the subject property and found that because of the severe slope of the parcel, it is not conducive for use as a park. Planning staff would note there is money budgeted in FY2012 and FY2013 for a park in Eagle Valley Subdivision. Orchard Hill and Eagle Valley Subdivisions are interconnected and the new park in Eagle Valley will be available to residents of both subdivisions. A copy of the capital improvement line item for the new park is attached to this staff report. The Unified Development code now requires that each new subdivision utilize sustainable development tools and achieve a 40 point score from a list of sustainable development tools. The applicant has achieved a 40 point total with a mixture of sustainable tools. The Final Plat of Sky Blue Estates proposes three sustainability measures, including the following: 1. A 27 -foot wide street, which reduces the amount of impervious area of the development (5 points). 2. The applicant will be planting street trees within the parkway between the sidewalk and back of curb (5 points). Subdivision Staff Report — Final Plat of Sky Blue Estates Page 5 3. Solar subdivision: the subdivision includes 70% or more "solar lots" that have a minimum north -south dimension of 75 feet and a front line orientation that is within 30 degrees of the true east -west axis (30 points). Attached to this staff report is a handout on how solar orientation can lower heating costs. The proposed subdivision will meet the City's storm water control regulations and policies. Stormwater from Phase 1 of Sky Blue Estates will flow to an existing detention basin in Eagle Valley Subdivision. This arrangement was anticipated when Eagle Valley Subdivision was originally platted and the detention basin was sized accordingly. Engineering staff has confirmed that the detention basin in Eagle Valley Subdivision has sufficient capacity to accommodate stormwater from Phase I of Sky Blue Estates. Planning staff recommends the City Council approve the Final Plat of Sky Blue Estates subject to waiving the right -of -way and street width requirements for Golden Eagle Drive, Cobalt Court and Zephyr Drive. Prepared by: Reviewed: ` l.Cteo, Date: 06-26—(2_ DEPARTMENT: Water Department STATE PROGRAM: Business Type Ludy PROJECT TITLE: Water Tower and Water Main Extension/ Roosevelt Road and Industrial Park West Tower PROGRAM: 8C DEPARTMENT: 42 FD /CIP NO: 740 -1672 TOTAL PROJECT COST $ 994,868 EXP PRIOR ESTIMATED PROJECT BUDGET 2010 -11 2011 -12 2012 2013 BEYOND TO FY 10 FY 10 -13 -14 2014 -15 2015 A. EXPENDITURE ITEMS $ 14,000 $ 11,000 Design & Engineering $ 75,000 $ 50,000 $ 82,800 Land and R.O.W. $ 32,868 Construction $ 260,000 $ 469,200 $ 763,000 Other $ 14,000 $ 43,868 TOTAL $ - $ 75,000 $ - $ 310,000 $ 552,000 $ 763,000 B. PROJECT FINANCING $ 14,000 $ 18,868 Water Depreciation Fund $ 25,000 Water GO Bond $ 75,000 $ 310,000 $ 552,000 $ 763,000 $ 14,000 $ 43,868 TOTAL $ - $ 75,000 $ - $ 310,000 $ 552,000 $ 763,000 PROJECT DESCRIPTION This project provides for the installation a 12 -inch water main along the north and easterly side of Roosevelt Road from the Eagle Valley Subdivision to Orchard Drive. This project will require the purchase of a one -acre parcel at an appraised value of $10,500 and additional costs for legal and survey fees to support the construction of a one million gallon water tower in 2013 to be located along Roosevelt Road. It also includes an 8 -inch water main loop to Amelia Court and the demolition of the Eagle Point Park water tower after the new water tower is constructed. JUSTIFICATION This project is part of an effort to supply water service to all residents within the city limits and for large user needs located in the West Side Industrial Park. This multi- phase project will provide an alternate source of water to the public in the intermediate system (Roosevelt Road) during emergencies, minimizing the number of customers out of service. This will also improve water circulation and pressure, and provide service to areas for future development. In addition, this project will focus on the construction of a new water tower in support of large water user needs within the West Side Industrial Park. This project will be funded in part with a General Obligation bond issue of $1,525,000 in Fiscal Year 2011. The annual debt service on these issues will be financed with current water revenues plus a two percent rate increase in Fiscal Year 2011. The rate increase will generate an additional $80,000 in water fees to be used for debt service. RELATIONSHIP TO OTHER PROJECTS This project implements the Comprehensive Plan's Infrastructure Element: Goals 1.1, 1.2, 1.3, 11.7, 11.8, and 11.9. RELATIONSHIP TO SUSTAINABILITY PRINCIPLES This project implements the Sustainable Principle of Community Design and Clean Water. 200 DEPARTMENT: Leisure Services/ Park Division STATE PROGRAM: Culture & Recreation PROJECT TITLE: Eagle Valley Park Development PROGRAM: 4C .DEPARTMENT: 30 FD /CIP NO: 102- TOTAL PROJECT COST $ 150,000 EXP PRIOR ESTIMATED PROJECT BUDGET 2010 -11 2011 -12 2012 -13 2013 2014 BEYOND TO FY 10 FY 10 -14 -15 2015 A. EXPENDITURE ITEMS Design & Engineering $ 10,000 Land and R.O.W. Construction $ 90,000 $ 50,000 Other $ - $ - TOTAL $ - $ 100,000 $ 50,000 $ - $ - $ - B. PROJECT FINANCING DRA Distribution $ 100,000 $ 50,000 $ - $ - TOTAL $ - $ 100,000 $ 50,000 $ - $ - $ - PROJECT DESCRIPTION This project provides for developing Eagle Valley Park in the Eagle Valley Subdivision between Roosevelt Street and Shiras Avenue. JUSTIFICATION The developer has dedicated approximately 2.25 acres of property as a park and storm water detention facility. This project develops the park portion of the property. The primary service area for this park will be the ninety homes that will be constructed in this subdivision. RELATIONSHIP TO OTHER PROJECTS This project implements the Comprehensive Plan's Recreation Element: Goals 1.1 and 1.3. RELATIONSHIP TO SUSTAINABILITY PRINCIPLES This project implements the Sustainable Principle of Native Plants & Animals and Community Knowledge. 16 Fire Department 11 West 9th sheet Dubuque, Iowa 52001 -4839 (563) 589 -4160 office (563) 589-4209 fax dbrown ©cityafdubugne.urg E. Daniel Rcmvn, Chief To Whom It May Concern THEUTYOr DUB E 3 -11 -2010 The Dubuque Fire Department is in strong support of the new street connection between Roosevelt and Baldwin Drive as part of the Orchard Park subdivision. This connection would improve fire response to the area as well as giving the fire department a secondary access. We require, when possible, all subdivisions and developments to have at least two means of access. Respectfully Mark Ludescher Fire Marshal City of Dubuque Fire Department Service People Integrity Responsibility Innovation teamwork Solar Access: Using the Environment in Building Design By Mary- Margaret)enior, A/CP More new buildings are energy efficient that at any time in our history. Yet most do little to use the environment in or- der to reach their real performance potential. About 40 percent of our end -use energy demand and over two- thirds of electricity demand is for buildings. A significant portion of that demand can be met using the sun if we learn to design and renovate buildings to take advantage of access to solar energy. Further, buildings now produce about 40 per- cent of U.S carbon emissions, another reason to take advantage of solar power. We know that more solar energy falls on our roofs than is required to meet the U.S. demand for electricity. However, our land -use policies and regulations discour- age the use of this valuable resource. We need to do everything we can to encourage decision makers, the building industry, and building owners to think of buildings as energy producers. For our future well- being it is essential that we consider energy production and use as an integral part of building design for new construction and renovations alike. We need to encourage builders, developers, designers, engineers, and owners to use the environment to heat, coot, ventilate, daylight, and power our buildings. As planners we need to help edu- cate and promote changes in how we design and renovate buildings and to use land -use controls to enable that to happen. It can no longer be an either -or choice between environmentally sensitive building design or dense development to achieve viable transit systems. It can and must be both. We cannot favor one approach to re- ducing energy use over another in making recommendations to decision makers. That is because the dominate fuel sources for build- ings and for transportation differ. At present, most energy for transportation comes from oil or biofuels. In contrast, coat is the primary energy source for buildings —with some natu- ral gas, hydroelectric, nuclear, and wind sup- plementing the grid. Of these energy sources, only hydroelectric, nuclear, and wind energy do not contribute carbon emissions. Concen- trated solar thermal plants may begin provid- ing electricity In the near future. According to Energy Information Admin- istration 2005 survey data, an office build- ing uses about 40 percent of its energy for heating, cooling, and ventilation; 3o percent for lighting; and i6 percent for office equip- ment and other "plug" loads. A commercial building built to American Society of Heating, Refrigerating, and Air - Conditioning Engineers (ASHRAE) Standard 90.t (a standard com- monly referenced in building codes) may use about zo percent of its energy for heating and cooling, up to 7o percent and sometimes more for lighting, and the remaining for hot water, pumps, and equipment. A typical home may use one -hatf its energy demand for space conditioning (heating, cooling, and ventilation), 20 percent each for refrigeration and hot water, and the remainder for appli- ances and electronics. It is crucial that we use all the opportuni- ties we can muster to design buildings to meet their energy needs. We must begin to think of buildings as being net energy producers —that is, buildings that can put energy into the elec- tric grid instead of just taking it out. Flow do we achieve such buildings? We begin by minimizing the energy load of the building itself. This is done by using ef- ficiency measures to conserve energy and passive solar design strategies and other solar technologies to produce energy. The objective of passive solar —or whole - building— design is to capture the natural environment using elements that are already employed in buildings and to do so at tittle or no increase in construction or renovation costs. The resulting buildings are more economical to maintain, aestheti- cally pleasing, comfortable, and healthy. They are tight and airy, easier to sett and rent, and pleasant places to live, study, and work. Studies have shown that employee absenteeism is reduced and performance improves when office buildings incorporate elements of solar design. Buildings that take advantage of solar building design are less dependent on fuel cost variations and can maintain comfort during power outages. They may employ any architectural style desired and be of any building type and use required — single or multifamily housing, institutional, commercial, or industrial. Passive solar buildings use a south -fac- ing orientation (north- facing in the southern hemisphere) and building components (like windows, walls, and floors) to capture the benefits of the sun for heating and daylight - ing, and they use natural air flows and tem- perature gradients (the difference between daytime and nighttime temperatures) for ventilation and cooting. They use landscap- ing and overhangs for shading. In some climates they may use evaporative cooling or cooling towers, and soon, all climates may be able to adopt evaporative cooling technologies because of new research on desiccant technologies (materials capable of removing moisture from the air). Once the building's energy need is min- imized, owners may consider active solar thermal for domestic hot water (DHW) and auxiliary heating and photovottaics (PV) for electricity. Excess electricity can be fed into the utility's grid for others to use. ZONINGPRACTICE 4.10 AMERICAN PLANNING ASSOCIABON I page 2 ASK THE AUTHOR JOIN US ONLINE! Go online from May no to 21 to participate in our "Ask the Author" forum, an interactive feature of Zoning Practice. Mary- Margaret Jenior will be available to answer questions about this article. Go to the APA website at www.planning.ory and follow the links to the Ask the Author section. Frotn there, just submit your questions about the article using the e-mail link. The author will reply, and Zoning Practice will post the answers cumulatively on the website for the benefit of all subscribers. This feature will be available for select issues of Zoning Practice at announced times. After each an in discussion is closed, the answers will be saved in an onlin available through the APA Zoninv Practice web xa.es. The important message is that solar building design can not be achieved simply through "add -ons." The approach discussed above is integral to the building and needs to be considered in the predesign stage, whether for new construction or renovation. Cleresl Direct Gain About the Author Mary- MargaretJenior, Jul., is retired from the Department of Energy, where she was responsible for the development and management of the passive solar /whole buildings research program. She represented the U.S. government on the Inter- national Energy Agency Solar Heating and Cooling Programme Execu e. Earlier in her career she was a practicing plann = :i : of Cincinnati, the USN Trident Program, and nationwide. Even within a given geo- graphic area, microctimate variations must be taken into account. Design tools such as ENERGY -io and Energy Plus contain the weather data fifes for numerous U.S. Locations). Sunspaces Sonwace :lilt. nspaces provide useful passive solar hea es. A thermal storage wall is an effectk r,httime heating. ELEMENTS OF SOLAR BUILDING DESIGN Before we see how these ideas can be en- couraged through land -use regulations, it is necessary to understand how to incorporate solar concepts into buildings. Keep in mind throughout the following discussion that solar design is location- specific. We'll begin with basic solar buitding design concepts and technologies. Latitude. Depending on location, the height and angle of the sun in the sky (the azimuth) throughout the year and climate characteristics (for example, heating and cooling degree days and air -flow patterns) wilt establish the basis for the design of solar buildings and therefore, solar access requirements. (Specific climate data are available for numerous weather stations Thetmal Storage Wall hernia M ssW Ccudew or DQE /NREL and the Susalna r �Il;i ��.� ll, gs Industries Council Energy - efficiency measures. These measures include proper levels of insula- tion and glazing type, control of air infiltra- tion, properly sized mechanicat equipment, efficient appliances and office equipment, and electric lighting systems and controls. Daylighting. This refers to the use of solar radiation captured through the use of clerestory glazing, sawtooth roof moni- tors, light shelves (horizontal surfaces over the windows' exterior that reflect daylight onto the ceiling and deep into the building), light tubes, and other means of bringing light into the building. Studies have shown that daylight can reduce electric bills 3o to 5o percent. Skytights are commonly used for daylighting. However, unless they are designed as an integral part of the building, they will likely increase the cooling load. Elec- tric tighting controls are integral to the use of daylighting so that light levels are constant when people are present and fixtures are not on when radiation levels are adequate. Suntempering. For housing and small nonresidential buildings, suntemperingmay be a desirable approach. Suntempering is accomplished by simply moving more of the windows to the south and relying on interior finishes and furnishings forthermat or heat storage. However, suntempered buildings will not reduce the use of purchased energy to the degree that solar buildings will. Passive solar or whole building design. Passive solar is the building itself. A passive solar building makes use of the building's nonmechanicat elements and proper ori- entation to provide daylighting; to collect, store, and distribute solar energy; and to take advantage of natural cooling. These buildings have thermal mass to store and emit heat during times when it is needed and to lessen the need for air conditioning. The amount of thermal storage required is dependent on the area of south- facing glass. Care must be taken in selecting glaz- ing so that the solar gains from the southern orientation are maximized. These buildings also employ means to direct natural airflows (solar -drive convective air movement) into the building using such strategies as oper- able windows, vents at floor level, and wing walls (walls that project from the building) to bring air into the building. Additional ventilation is provided by whole -house fans and operable clerestory or cupola windows. Passive solar buildings may also use night radiation to flush excess heat. This method involves exposing masonry surfaces to the cool night sky and insulating these surfaces ZONINGPRACTICE too AMERICAN PLANNING ASSOCIATION Ipage3 from outside air during the day. As daytime temperatures rise, the cooler surface acts as a heat sink for the living space. An ideal design will orient the major work, study, and living areas to the south and minimize the east- and west - facing glass. Even the type of glazing selected for each orientation may differ so that solar gains for south - facing glass are maximized and those for east- and west - facing glass are minimized. Passive solar buildings draw upon at least one of three design strategies to provide heat: direct gain, sunspaces, and thermal storage — or Trombe— walls. Trombe walls are glazed, south - facing masonry or concrete walls with a selective surface that aids in collecting and storing the solar ra- diation. A thermal storage system is often referred to as an indirect system. Passive solar buildings draw upon at least one of three design strategies to provide heat: direct gain, sunspaces, and thermal storage. passive solar buildings since the collectors are likely to be placed at ground level. Ha- waii now requires that all new homes install solar hot water systems. Photovoltaic (PV) systems. PV systems generate electricity. The PV system might be on the building's roof, integrated into its overhangs, or provide the skin for the building's facade or atrium. Distributed power is a term likely to become part of our future vocabulary. Distributed power is PV- generated power that is fed into the utility's grid. In time, if enough buildings generate more power than they need, we will have less need for additional power plants. Ventilation air. For nonresidential build- ings like institutions, industrial facilities, and warehouses, transpired air collectors ® Left: This retail coniptexinStiverlbome Colorado, features RV, clerealorY windows, daYligkling, diffusing sk1flIglits, and a solar wall Right: This Federal Express buildingin Denver uses an absorber wall to trete preheat intake air. Passive solar buildings depend on proper glazing -to- storage ratios and prop- erly sized overhangs to avoid overheating in spring and fall. Because these buildings use normal building components to meet much of their heating and cooling needs, they require little maintenance. In some climates, a passive solar home or small non- residential building (e.g., a school or office building) may not require a central heating and cooling system —a major cost saving benefit —and those that do require auxiliary heating and cooling will use smaller systems than conventional buildings. Buildings of 10,000 square feet or smaller make up the majority of the non- residential sector. Contrary to popular perceptions, smatter commercial, institu- tional, and industrial buildings are similar to residential buildings in that they do require heating as well as daytighting, cool- ing, and ventilation. For larger buildings, daytighting is especially important since lighting is sometimes the biggest user of energy. Many buildings, regardless of size, can benefit from using solar to heat and to preheat ventitation air. Active solar systems. This refers to the use of collectors, usually located on the roof to collect solar radiation to heat water for domestic uses and possibly, to provide auxiliary heating in the winter months. The systems that provide both hot water and heat are often referred to as combisystems. Some collectors for hot water systems are freestanding, especially when roof orienta- tion is not ideal. For these systems greater solar access is necessary than required for placed on the south side of buildings have proven to be an effective technique to pre- heat ventilation air. Transpired collectors are a dark- colored, perforated facade with a fan, or the building's existing ventilation system draws air into the building. The air space between the absorber and the building wall form a plenum. The solar energy absorbed by the dark absorber and transferred to the air flowing though it can preheat intake air by as much as 4o°F. The absorbers can be added to or designed as part of the build- ing's facade. Because of fire code require- ments, they may not be appropriate for some muttistory buildings. Evaporative cooling. This refers to the use of a water medium to cool air for climate control in dry ctimates. Not all cli- mates require compressors to cool air and ZONINGPRACTICE 4.10 AMERICAN PLANNING ASSOCIATION Ipagep control humidity inside buildings. Materials that remove moisture from the air are known as desiccants. Desiccant technologies are evolving and can be integrated into evaporative systems for use in all climates. Courtesy of DOE /NREL and th ble Buildings Industrie Council ® Above: Forbotnes rn solarsubdivislons solar access may be provided to the rear, side, or ftontyard. Short east-west streets tied into north South collectors isa goad streetpattersn for solar access. lBelow This sit6dlvisronptar! from Deventer m thefletFie7iandsshows' how even dense development can be sited protect solar access. Local development controls should encourage subdivision layouts that provide for maximum east - west orientation for residential and smaller nonresidential uses. Geothermal heat pumps. The ground maintains a relatively constant temperature of 5o to 6o °F (To to i6 °C). Thus, the ground temperature is warmer than the air temperature in winter and cooler in the warm months. Geothermal (orground- source) heat pumps take advantage of the earth's constant temperature to heat and cool buildings. Because the sys- tem is outside the building, geothermal requires more land area than the other techniques discussed above. IMPLICATION FOR LAND -USE CONTROLS Currently, relatively few communities in- clude provisions in their local development controls that ensure that environmental resources can be used to heat, cool, day- light, and electrify buildings. The discus- sion that follows outlines a number of considerations for subdivision and zoning standards that would help private develop- ers build and remodel buildings that are better able to take advantage of access to solar energy. Subdivision design Local development controls should encour- age subdivision layouts that provide for maximum east -west orientation for residen- tial and smaller nonresidential uses. In the northern hemisphere, major living, work, and study areas should face south (north in the southern hemisphere) to the extent possible. It is easiest to protect solar ac- cess in subdivisions having streets that run east -west or 25 degrees of east -west. Where streets run north - south, cul -de -sacs or loop streets help provide for solar access. For dense development, creative site design is essential. Development standards Yard and height requirements of zoning ordinances can be used to ensure solar access. In an ideal situation, south - facing glazing should receive four hours of sun on December 21. That generally means that there should be no obstruction within an arc of 6o degrees on either side of true south. Relatively good solar access will still occur if the glazing is unshaded within an arc of 45 degrees. What the horizontal clear distance needs to be is location- specific and depends on the height of the sub- ject building of interest and the adjacent structures. Boulder, Colorado, for example, includes shadow lengths by height of building for io:oo a.m., noon, and z:oo p.m. on December zr in its development code. Properly sized overhangs will shade the glazing in the summer when the sun is higher in the sky. Since not all lots are large enough to accommodate optimum solar access, it is important to assess shading patterns in establishing compromises on yard re- quirements. One possible compromise is a flexible approach to building orientation and yard requirements when streets run north - south. With appropriate side yard ZONINGPRACTICE 4.10 AMERICAN PLANNING ASSOCIATION Wages 4 5° No Structres Allowed Fences Mowed B 1 Story Buildings Allowed c 2 Story Buildings Allowed Courtesy of DOE /NreEL and the Sustainable Buildings Industries Council ®Above Buildings, trees, or other obstructions shou d not be located so as to shade the south wall of solarbuild ngs. Below: Trees and other landscaping' features may be effecively used to shade east and west windows f om summer solar gains. Courtesy of OOE /NREL and he Sustainable Buildings Industries Council allowances, buildings that are oriented perpendicular to the front lot line on north -south streets can still take advantage of solar access. In many cases, there is no reason that the main building axis needs to face the street and that yard requirements cannot be varied to allow for solar access. Obstacles can reduce not only the amount of solar available for winter indoor climate control, they can also limit daylighting and radiation falling on active solar collectors and photovoltaic surfaces. For example, the limbs of a deciduous tree can reduce solar heat gains in passive solar build- ings, and trees on the south side can all but destroy passive solar performance unless they are close to the building, with the tower limbs removed so that winter sun can penetrate under the trees canopies. When used properly, Landscaping can provide for shading and ventilation. The ideal for shading is the use of deciduous trees to shade the east, southeast, southwest and west sides of the build- ing and trellises with deciduous vines to shade the east windows during the summer months. Evergreens and shrubs can be used to block prevailing, cold wind in the winter and shade heat - absorbing paved areas during warm seasons. Also, trees, fences, and shrub- bery can be used to channel summer breezes into the building. Daylighting design tools such as ENERGY to, available from the Sustainable Buildings Industries Council, provide a simplified means for accounting for select obstacles and can be used to assist in set - ting yard and landscaping requirements for planned developments. More adequate algorithms for tools such as EnergyPlus are emerg- ing. Planning agencies may wish to draw upon the skills of energy analysts to help them establish yard and landscaping requirements where unique site conditions exist. Paved surfaces such as driveways, walks, and patios can re- flect heat and glare into buildings through glazings. Development standards should encourage impervious surfaces to be located and designed to minimize these effects. Because solar building design requires operable windows for ventilation, the location of off- street parking is important. Large parking facilities can be a detriment to indoor air quality if vehicle exhaust is allowed to enter the building through windows or vents. Development standards should keep parking areas away from oper- able windows and vents and ensure that these areas are located so that prevailing breezes do not carry exhaust into buildings. Communities may wish to consider the use of overlay zones or planned unit development restrictions to ensure that solar access is adequate. In some instances, it might be possible to apply the prin- ciples of form -based codes, although that option needs careful study to determine if it would be feasible. Aesthetics need not be an issue in solar building design. There is sometimes a preconceived belief that buildings designed or renovated to use solar are "odd" in appearance. This is a mis- perception. Collectors needed for active solar systems can be roof - integrated and the photovoltaic systems can function as the skin of the building, as roof shingles or standing seam roofing, as glazing for atria and covered walkways, or be integrated into building over- hangs or awnings. As for passive solar buildings, they can be of any architectural style. There are no special panels or other special details that announce that a building is passive solar. Alt its compo- nents or elements are designed as an integral whole beginning at the predesign stage. ®This illustration shows how the angle of sunlight changes throughout the year, 0 p Ir ,�l. il l 11,', �0 ca Courtesy of DOE /NreEL, Credit —Ron ludkoff ZONINGPRACTICE 2.10 AMERICAN PLANNING ASSOCIAnompage 6 As more jurisdictions reference HERS Home Energy Rating Systems) or LEED (Leadership in Energy and Environmental Design) in their building codes, they will need to ascertain the extent to which their modified building codes are in agreement with their land -use controls. CONCLUSIONS The land -use control considerations out- lined above not only are essential to pro- vide for future energy needs and as means to limit global - warming emissions, they need to be looked at as a way to improve the locat (Le., micro) balance of payments. When less money goes to remote power companies, more of that money can remain in the local economy. And the adoption and enforcement of solar access controls provide the proper environment for the creation of new job skills and employment options for residents. According to a study by the University of California, Berkeley, as many as 1.9 miltion jobs can be cre- ated by 2020. The American Solar Energy Society's study projects 4.5 million jobs by 2030 across all regions and sectors of the economy, with the largest growth occurring in construction, farming, and professional services. After all, like energy management, economic development is also an integral part of local planning. Unfortunately, few cities or counties have recognized the need for solar access requirements. For those that have, the steps taken tend to be very limited. Most cities and counties have Limited the focus to subdivision regulations, and have not rec- ognized the need to also adjust zoning stan- dards. Even existing development can use whole - building solar design concepts when renovating. Thus, development standards need to provide for solar design options in developed areas. Because solar design is location- specific, no community's standards should be exactly the same as another's, though all need to address the factors out- lined above. Further, even in a given geo- graphical region, there will need to be dif- ferences in the specifics of a standard. For example, Denver's requirements and those of Evergreen, Colorado, which is at a higher elevation, will have different provisions. Some communities have encouraged the use of easements to protect solar ac- cess. While these legal mechanisms will work, it is mote efficient and beneficial to have requirements that apply to all proper- ties. Fora community to reduce its demand for energy, greater benefit will occur when all development and renovation decisions recognize and provide for solar access. This statement is also true in southern climates. Contrary to standard belief, even communi- ties in places like Florida and Arizona can benefit by developing land -use controls that require solar access for the building, as well as for the solar hot water and PV panels. In the sunny Southern states the peak energy demand is during wintertime cold spells, not during summer heat waves as in the North. Finally, as more jurisdictions reference HERS (Home Energy Rating Systems) or LEED (Leadership in Energy and Environmental Design) in their building codes, they wilt need to ascertain the extent to which their modified building codes are in agreement with their land -use controls. SELECT SOURCES OF INFORMATION ® National Institute of Buildings Sciences. 2008 "Passive Solar Heating." In Whole Building Design Guide. www.wbdg.org /resources/ psheating.php ® Sustainable Building Industries Council, Green Builder Guidelines. - Available atwww.sbicouncil.org ® Nationat Renewable Energy Laboratory: www.nrel.gov /buildings ® Sustainable Buildings Industries Council: www.sbicouncil.org ® American Solar Energy Society: www.ases.org ® International Energy Agency Solar Heating and Cooling Programme: www.iea- shc.org to U.S. Department of Energy, www. eere.energy.gov Oberlin College's Adam oseph Lewis Center for Environmental Studies has t4,6 82' square ' t ofphotovolta c panels closed loop geothermal wells that provide heating and cooling, daylighting, and an engineered wastewater system modeled on natural'' wetland ecosystems. Photo by Robb Williamson: www.williamsoniniages.com. Design concept by Lisa Barton. VOL. 27, NO.4 Zoning Practice is a monthly publication of the American Planning Association. Subscriptions are available for $85 (U.S.) and $aao (foreign). W. Paul Farmer, r icp, Executive Director; William R. Klein, AICP, Director of Research Zoning Practice (ISSN 1548 -0135) is produced at APA. Jim Schwab, AICP, and David Morley, AICP, Editors; Julie Von Bergen, Assistant Editor; Lisa Barton, Design and Production. Copyright ©zoao by American Planning Association, 122 5. Michigan Ave., Suitea600, Chicago, IL 60603. The American Planning Association also has offices at 1776 Massachusetts Ave., N.W., Washington, D.C. 20036; www.planning.org. All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, or by any information storage and retrieval system, without permission in writing from the American Planning Association. Printed on recycted paper, including 5o -7o% recycled fiber and 10 % postconsumer waste. ZONINGPRACTICE 2.10 AMERICAN PLANNING ASSOCIATION Ipage�