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b. Deed restrictions, covenants, permanent easements or other instruments that ensure the long-739 <br />term preservation and maintenance of open space in accordance with the criteria and analysis 740 <br />specified in subsection 6 below. 741 <br />5. Density Determination. Proposed new or expansions to existing planned unit developments must 742 <br />be evaluated using the following procedures. 743 <br />a. Step 1: Identify Density Analysis Tiers. Divide the project parcel into tiers by drawing oe or 744 <br />more lines parallel to the ordinary high water level at the following intervals, proceeding 745 <br />landward: 746 <br />Waterbody Classification No Sewer (ft) Sewer (ft) <br />General Development Lakes – 1st tier 200 200 <br />General Development Lakes – all other tiers 267 200 <br />Natural Environment Lakes 400 320 <br />b. Step 2: Calculate Suitable Area for Development. Calculate the suitable area within each tier 747 <br />by excluding all wetlands, bluffs, or land below the ordinary high water level of public 748 <br />waters. 749 <br />c. Step 3: Determine Base Density. For residential PUDs, divide the suitable area within each 750 <br />tier by the minimum single residential lot area for lakes to determine the allowable number of 751 <br />dwelling units, or base density, for each tier. 752 <br />Inside Living Floor Area <br />or Dwelling Site Areas (sf) <br />General Development <br />Lakes w/sewer – all tiers <br />Natural Environment <br />Lakes <br />< 200 .040 .010 <br />300 .048 .012 <br />400 .056 .014 <br />500 .065 .016 <br />600 .072 .019 <br />700 .082 .021 <br />800 .091 .023 <br />900 .099 .025 <br />1,000 .108 .027 <br />1,100 .116 .029 <br />1,200 .125 .032 <br />1,300 .133 .034 <br />1,400 .142 .036 <br />> 1,500 .150 .038 <br />d. Step 4: Determine if the Site can Accommodate Increased Density: 753 <br />i. The following increases to the dwelling unit or dwelling site base densities determined in 754 <br />Step 3 above are allowed if the design criteria in Section 1012.03.J.6 of this ordinance are 755 <br />satisfied as well as the standards in subsection ii below: 756 <br />RCA Attachment A <br />Page 26 of 32