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To: Chairman Kelley and Planning Commission Members Mayor Peterson and City Council Ron Moorse, City Administrator From: Jeanne A. Mabusth, Building & Zoning Administrator Date: December 9, 1992 Subject: #1785, #1781/1782 and #1783/1784 David Carlson - 600, 610 and 620 Big Island -Preliminary Subdivision - Resolution, Variances and Conditional Use Permits Brief Review of Application Mr. Carlson's comprehensive land use application consists of a lot line rearrangement involving three substandard parcels approved by ordinance for seasonal dwelling use located at 600, 610 and 620 Big Island. The lot line rearrangement provides Lots 600 and 610 with lakeshore yards. Historically these properties have had residential docks and have been used as lakeshore lots (review Exhibits E and F). The subdivision also provides for the sharing of an on-site septic system on both Lots 1 and 2. Tanks are located on Lot 1. Drainfield area is within Lot 2. All are located above the 931.5 or flood plain elevation. The use has been approved by the on- site septic manager. Sharing of the septic system will require the execution of a covenant/easement providing for the shared use and maintenance of the septic system and septic tanks. The septic system has been designed to serve a four-bedroom use level. Each cabin on Lots 1 and 2 wi 11 be limited to two-bedroom level use. The existing cabin on Lot 2 is located approximately 4' from the newly placed side lot line. This cabin will be removed and a new cabin reinstalled meeting the 10' setback. Review of Applications 11781/1782 and 11783/1784 Applicant proposes the installation of new seasonal cabins on Lots 1 and 2 that will be located within the flood plain of Lake Minnetonka requiring special foundations that allow for water to flow freely beneath the structure. Review Exhibits. Note the properties are located on a peninsula. To install new structures on both Lots 1 and 2, an average lakeshore setback variance is required and a conditional use permit and variance as cabins will be located within the flood plain, a protected area. It should be noted that both DNR and MCWD will not allow filling within the flood plain and will approve only frost depth footings for each of the cabins. A variance to Section 10.31, Subd. A wi 11 be required as al 1 new construction on Big Is land must be placed on a solid support foundation.