Project Packet - Laserfiche WebLink

Home Browse Search

EXHIBIT TO: Jeanne A. Mabusth, Zoning Administrator FROM: Alan P. Olson, City Planner DATE: April 13, 1982 SUBJECT: 4669 Tonka Lake Properties - Proposed Subdivision (PRD) The basic zoning on this property is LR-lC ss acre/unit. Because of the peninsula location and resultant 3-aided 75' setback requirements, this site is a natural one to consider for PRD cluster -type development allowing for defined housing pads and common pen space close to the lake. The limiting site factor is the lake and resultant floodplain area below elevation 931.5. This defines both setback and hardcover limitations. All building sites including the existing house are above the 931.5 floodplain elevation. Provided an open space/flowage easement over Outlot B is granted to the City, Section 31.841 c allows this flood fringe area (between 929.4 and 931.5) to be credited for density purposes. All new building sites meet the 75' shoreline setback. The existing house (and proposed lot) encroaches to about 40' from the shore. It has been demonstrated to staff that 4 lots totally conforming to the 75' setback are possible if thn existing house were demolished (lot 2 becomes smaller). The request is to al'aw the existing structure to remain where it is. The City could require removal f the existing house and full compl?.ance with the 75' setback as a PRD condition. However since 4 conforming lots are feasible, the existing substandar.1 house location really has no bearing on determination of the appropriate density. Therefore, based on setback and net lot area factors, the allowable density would be 4 or 5 units (2.75 acres - road O.L.A. .22 acre = 2.53 acre ; .5 = 5 units by area or 4 units practically possible per plan). On the other hand, hardcover is extremely limiting. Per 31.831 and 34.202, there can be no hardcover below elevation 931.5, or within 75' of the shoreline. And in the remaining area the maximum hardcover can be no more than 25%. The r sum hardcover allowed is therefore only 5526 sf. Any am over th.s amount requires a variance. Based upon the house sizes proposed (excluding driveway hardcover) the maximum density allowed by hardcover limitation would be 2 urirs, not 4.