Agenda - 02-16-1993 - VII-A - Laserfiche WebLink

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6 COMPARISON OF RURAL CHARACTER STRATEGY OPTIONS PLANNING BOARD OPTION #1B Under the Rural Character Study Committee's recommended strategy, the number of "Units Per Gross Acre" increases by 60% from "Conventional Development" to entry level under "Bonus Provisions" [e.g. , 0.5 to 0.8] . Thereafter, the bonus scale increases by a decreasing percentage [e.g. , 0.8 to 0.9 = 12%, 0.9 to 1.0 = 11%; etc. ] . In this example, the sliding scale of density bonuses under the Planning Board option has been adjusted for each soil condition to reflect the same percentage distribution. The analysis is based on a tract size of 50 acres, but the template is set up so that any tract size can be evaluated. Average lot size calculations include the area in the lot as well as the street right-of-way. TRACT SIZE = 50 ACRES Planning Board Option #1B Poor < Average > Good Soils Soils Soils RCSC Option Lot Yield Units Avg Units Avg Units Avg Units Avg % Open Per Lot Per Lot Per Lot Per Lot Open Space Gross Lot Size Gross Size Gross Size Gross Size Space Acres Acre Yield [SgFt] Acre Lots [SgFt] Acre Lots [SgFt] Acre Lots (SqFt) CONVENTIONAL DEVELOPMENT 0% 0.0 0.50 25 87120 0.25 13 174240 0.50 25 87120 1.00 50 43560 _ BONUS PROVISIONS 20% 10.0 0.80 40 43560 0.40 20 87120 0.80 40 43560 1.60 80 21780 30% 15.0 0.90 45 33880 0.45 22 68063 0.90 45 33880 1.80 90 16985 40% 20.0 1.00 50 26136 0.50 25 52558 1.00 50 26136 2.00 100 13092 50% 25.0 1.10 55 19800 0.55 27 39817 1.10 55 19800 2.20 110 9919 60% 30.0 1.20 60 14520 0.60 30 29223 1.20 60 14520 2.40 120 7266 70% 35.0 1.30 65 10052 0.65 32 20256 1.30 65 10052 2.60 130 5036 == OBSERVATIONS: 1. For tracts with "average" soils, the Planning Board option results in the same number of lots as the RCSC option. 2. For tracts with "poor" soils, the options would produce similar results. Owners with with the most restricted land still stand to gain from the density bonuses but not at the same levels. The example provided above also assumes that sufficient "good" soils would be available for the owner to cluster units and use an alternative system. 3. For tracts with "good" soils, the Planning Board option produces "bonuses" which are twice those recommended by the RCSC. 4. Under the "Bonus Provisions" shown above, alternative systems would have to be utilized in all except a few, including the 20% open space option [RCSC and PB "poor" and "average" soil conditions] , and the 30% and 40% open space options [PB "poor" soil conditions] . Because the density bonuses are so high for "good" soils, even the use of alternative systems may not allow an owner to reach the maximum number of units.