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City of Arden Hills Planning Commission Meeting for September 7, 2016 P:\Planning\Planning Cases\2016\PC 16-022 - 1500 Arden Place - Variance\Memos_Reports_16-022 Page 3 of 9 B. Structure Setback – Variance Required A variance is needed to allow the new dwelling to encroach 2 feet into the minimum front yard setback of 40 feet, creating a setback of 38 feet. The encroachment into the front yard setback occurs only in a small area at the northwest corner of the attached garage. A second variance is needed for the principal dwelling to encroach 15 feet – 9 inches into the required 80-foot – 2-inch setback from the Lake Johanna ordinary high water level (OHWL). The proposed setback would be 64 feet – 5 inches from the OHWL as measured from the closest point of the screened porch. For properties with frontage on Lake Johanna, principal structures are required to be setback a minimum of 50 feet from the OHWL except where the adjoining lots have structures setback at a distance greater than 50 feet. In these cases, the required setback is determined by taking the average setback of the two adjacent dwellings and subtracting 10 feet. The dwelling to the east, 1492 Arden Place, is setback 130 feet – 4 inches from the OHWL, and the dwelling to the west, 1516 Arden Place, is setback 29 feet – 1 inch. Where properties have a dwelling that encroaches on the 50-foot lakeshore setback, 50 feet is used in determining the average setback. Therefore, the required setback for the new dwelling at 1500 Arden Place would be 80 feet – 2 inches from the OHWL. Finally, a variance is needed for the proposed deck to extend 15 feet – 4 inches into the setback from the OHWL. Section 1325.03 of the Zoning Code allows decks to extend up to 6 feet into the required structure setback. Therefore, a deck could be up to 74 feet – 2 inches from the OHWL. As proposed, the deck would setback 58 feet – 10 inches from the OHWL. The calculation for determining principal structure setbacks from the OHWL as discussed above does not apply to accessory structures. The accessory building is required to meet the minimum structure setback of 50 feet from the Lake Johanna OHWL. As proposed, the building would be setback 59 feet – 6 inches. The building would meet the minimum side yard setback of 10 feet. C. Structure Height – Conforming The maximum height permitted for principal structures in the R-1 District is 35 feet. The proposed dwelling is two levels including a walkout basement and would have a height of 19 feet. Applicable R-1 Lot Requirements 1. Minimum Lot Area (sf.) 14,000 2. Minimum Lot Size (ft., width/depth) 95/130 3. Height (ft.) 35 4. Floor Area Ratio (FAR) 0.3 5. Lot Covered by Structure 25% 6. Minimum Landscape Lot Area 65% 7. Minimum Building Setbacks (ft) Front Yard 40 Rear Yard (Principle) 30 Rear Yard (Accessory) 10 Side Yard Interior - Principal (Minimum/total both yards on lot) 10/25 Side Yard Interior - Accessory 10 Side Yard Corner 40