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FILE #18-3997 16 Jan 2018 Page 2 of 5 Section78- 305 - Lot Area/Width: LR -1A Lot Area Lot Width Required 87,120 s.f. (2.0 acres) 200' Actual 131,820 s.f. (3.0 acre) f 320' @ 75' / f 320 ` @ OHWL Section 78-1403 - Structural Coverage: The property exceeds 1.99 acres and therefore is not subject to structural coverage limitations. Section 78-1680 and 78-1700 -Hardcover Calculations: Stormwater Total Area in Allowed Existing Proposed Overlay District Zone Hardcover Hardcover Hardcover Tier 32,955 s.f. 23,196 s.f. * 23,196 s.f. Tier 1 131,820 s.f. (25 %) (17.5%) (17.5%) *Staff adjusted the submitted hardcover calculations to exclude all of the retaining walls per current policy. The portions of house and other hardcover within 75 feet of the lake have not been itemized out. However, the applicant is not proposing any changes to existing hardcover or building footprints. Applicable Regulations: Lake Setback Variance (Section 78-1279) The existing home is situated 54.4 feet from the ordinary high water level (OHWL) of Lake Minnetonka where, normally, structures are not permitted. The applicant's proposal involves replacing the existing flat roof of the one-story conservatory with a pitched roof, thus increasing the volume of the encroachment within the lake setback. Additionally the roof of the main portion of the home will be modified to add gables on the north and south ends to replace the existing hipped roof. The roof will not increase in overall height or peak height, however the mass of the new gable within the 75 -foot lake setback will be greater than existing. Average Lakeshore Setback Variance (Section 78-1279) The home is located entirely lakeward of the average lakeshore setback line based on the homes immediately to the north and to the south. Those homes do not appear to have existing views of the lake over the subject property rather, each of the homes are situated primarily with views of the lake away from the subject property. The applicant is proposing improvements to the existing home which will increase the mass of the encroachment within the average lakeshore setback. However, the addition of a covered entry; a second story over the existing flat roofed, single story garage; a new pitched roof over the flat roofed conservatory; and change in the roof over the main portion of the home are not likely to adversely impact existing views of the lake from the adjacent homes. The roof over the main portion of the home will also be modified to add gables on the north and south ends replacing the existing hipped roof. The roof will not increase in overall height or peak height, however the mass of the new gables within the average lakeshore setback will be greater than existing.