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IAll river classes <br />300 I 300 <br />1 <br />2 (2) The suitable area within each tier is next calculated by excluding from the tier area all <br />3 wetlands, bluffs, or land below the ordinary high water level of public waters. This suitable <br />4 area and the proposed project are then subjected to either the residential or commercial <br />5 planned unit development density evaluation steps to arrive at an allowable number of <br />6 dwelling units or sites. <br />7 (E) Residential and commercial PUD density evaluation. The procedures for determining the base <br />8 density of a PUD and density increase multipliers are as follows. Allowable densities may be <br />9 transferred from any tier to any other tier further from the waterbody, but must not be transferred <br />10 to any other tier closer. <br />11 (1) Residential PUD base density evaluation. The suitable area within each tier is divided by the <br />12 single residential lot size standard for lakes or, for rivers, the single residential lot width <br />13 standard times the tier depth, unless the local unit of government has specified an alternative <br />14 minimum lot size for rivers which shall then be used to yield a base density of dwelling units <br />15 or sites for each tier. Proposed locations and numbers of dwelling units or sites for the <br />16 residential planned unit developments are then compared with the tier, density, suitability <br />17 analysis, and the design criteria contained herein. <br />18 (2) Commercial PUD base density evaluation. <br />19 a. Determine the average inside living area size of dwelling units or sites within each tier, <br />20 including both existing and proposed units and sites. Computation of inside living area <br />21 sizes need not include decks, patios, stoops, steps, garages, or porches and basements, <br />22 unless they are habitable space. <br />23 b. Select the appropriate floor area ratio from the following table: <br />24 <br />25 Commercial Planned Unit Development <br />26 Floor Area Ratios*; Public waters classes <br />*Average unit Sewered general Second and additional Natural <br />floor area development lakes; first tiers on unsewered environment <br />(sq. ft.) tier on unsewered general development lakes <br />general development lakes; recreational <br />lakes; tributary river development lakes <br />segments <br />200 .040 .020 .010 <br />300 .048 .024 .012 <br />400 .056 .028 .014 <br />500 .065 .032 .016 <br />600 .072 .038 .019 <br />700 .082 .042 .021 <br />800 .091 .046 .023 <br />900 .099 .050 .025 <br />1,000 .108 .054 .027 <br />1,100 .116 .058 .029 <br />1,200 .125 .064 .032 <br />1,300 .133 .068 .034 <br />1,400 .142 .072 .036 <br />1,500 .150 .075 .038 <br />27 <br />i <br />Page 145 of 160 <br />