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1996-01-15 Planning Tier Density CalculationNorthwest Associated Consultants, Inc. COMMUNITY PLANNING • DESIGN • MARKET RESEARCH MEMORANDUM TO: David Licht FROM: Bob Kirmis DATE: 15 January 1996 RE: Albertville - D'Aigle Property FILE NO: 163.06 - 96.01 BACKGROUND At your request, I have prepared a tier density calculation in accord with the Albertville Shoreland District requirements for the D'Aigle property located south of 70th Street and west of Maciver Avenue. Attached for reference: Exhibit A - Tier Delineations ASSUMPTIONS In pursuing this matter, the following assumptions have been made: 1. The ordinary high water level for Mud Lake has been accurately illustrated upon the concept plan. 2. Sanitary sewer is available to the site. 3. No major (DNR protected) wetlands exist on the property, however, some smaller ones do exist that, once delineated, will have to be taken into account in calculating tier densities. For this preliminary calculation, we did not want to guess at their size. This may reduce the overall density slightly. 4. The subject site, less existing public right of way, measures 58.1 acres in size (per Otto Associates). 5775 Wayzata Blvd.- Suite 555 - St. Louis Park, MN 55416 • (612) 595-9636-Fax. 595-9837 PROCESS Per the City's shoreland requirements, shoreland density evaluation for the subject property involves the following steps: 1. Establishment of tiers upon the subject property (320 foot dimension used for sewered, natural environment Fakes). 2. Calculation of buildable land area within each tier. 3. Buildable land area within each tier is divided by applicable shoreland lot area requirement (riparian/non-riparian). CALCULATION As demonstrated below, shoreland density requirements would allow a maximum of 90 units upon the subject property (see attachment for tier reference). TIER 1 28.8 ACRES 1,254,528 SF _ 40,000 SF = 31.4 31 Units TIER 2 19.2 ACRES 836,352 SF . 20,000 SF = 41.8 41 Units TIER 3 6.8 ACRES 296,208 SF . 20,000 SF = 14.8 14 Units TIER 4 2.2 ACRES 95,832 SF . 20,000 SF = 4.8 4 Units TIER 5 0.1 ACRES 4,356 SF _ 20,000 SF - 0 0 Units TOTAL UNITS ALLOWED 2 90 Units To be noted in regard to the preceding calculations is that the City's shoreland regulations may allow density increases provided that applicable setbacks from the ordinary high water level are increased by 50 percent (from 150 feet to 225 feet). If you have any questions regarding this matter, please advise. pc: Rod D'Aigle Martin Campion Gary Hale Linda Houghton Kevin Mealhouse Pete Carlson Mike Couri Mayor Potter 3