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JUN -23-1995 11:29 t'flC 612 595 9837 P.09 Shureland Density Requirements. Phase I development upon the subject site will be governed by the State's shoreland regulations. If Phase II proceeds in the future, it will be subject to the City's new shoreland regulations which require a CUP/PDO to be processed. Using the State's and City's new Shoreland Ordinance, the following density calculations were prepared for the Marshan Townhome project for the first and second phase of development: 1. Site "Suitable Area" Evaluation. Suitable arra for development within a shoreland planned overlay district (PDO) shall exclude all wetland, watercourses, land below the ordinary high water level of public waters, public street rights-of-way, and public parks. This suitable area and the proposed project are subject to PDO performance standards governing density and design. Gross Land Area Land Below OHWLL Street Easement Park Land Proposed Commercial Site Phage 1 Phase 2 29.9 acres 30.5 acres - 4.4 acres -4.4 acres -3.2 acres -3.2 acres - 3.0 acres -3.0 acres -1.7 acres -1.7 acres Total Suitable Area 17.6 acres 18.2 acres 2. The City PDO Ordinance requires 50 percent of the total project area be preserved as open space. With the application of this performance standard, the 35 percent impervious surface standard for townhome development is not applied. This interpretation has been verified with DNR. staff. Pmjea;t. Ares Maximum 50% impervious Surfnre Phase 1 17.5 acres x .5 = 8.75 Phase 2 18.2 acnes x .5 = 9.10 3. Impervious Surface Per Dwelling Unit. The average impervious surface per unit for Marshan Townhomes, exclusive of the public street, is estimated to be 2,900 square feet. Utilizing this estimate, the following maximum density calculations are applicable to the subject property: Maximum Impervious Surface, Impervious Surface Maximum P_er_b t No Of—Units Phase 1 8.75 AC (381,150 SF) _ 2,900 SF = 131 Phase 2 9.10 AC (396,396 SF) 2,900 SF W 136 8