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

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8 COMPARISON OF RURAL CHARACTER STRATEGY OPTIONS ARENDT OPTION #28 In this option, an alternate strategy is presented based on the Grafton, Massachusetts Flexible [Cluster] Development ordinance. The option includes: (1) retaining the minimum required lot size of 40,000 sq.ft. ; (2) providing density bonuses based on the quality of the open space; (3j requiring at least 40% open space to qualify for any bonuses; and (4) applying density bonuses to the number of lots which can be achieved under a conventional plan. The Grafton ordinance was initially developed by Randall Arendt and modified to provide density bonuses based on compliance with design guidelines. A comparison of the Grafton bonuses with those provided in this option is as follows: Bonus Design Guideline Compliance Open Space Quality 20% 6 out of 12 F - Fair 25% 9 out of 12 M - Moderate 30% 12 out of 12 G - Good The definition of "quality" would be undertaken during the ordinance/design guidelines preparation phase. The "F, M, and G" symbols in the cluster option below are indicative of the lot numbers that could be obtained for "Fair, Moderate, and Good" quality open space. 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 the lot as well as the street right-of-way. A range of "constraint" conditions is presented to illustrate the impact of the option. "Constraints" can include poor soils, wetlands, steep slopes, etc. TRACT SIZE = 50 ACRES x== xxsa szza = Arendt Option #1B Severe < Moderate > Few Constraints 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 [Acres] Acre Lots [Acres] Acre Lots [Acres] Acre Lots [Acres a === = CONVENTIONAL DEVELOPMENT 0% 0.0 0.50 25 2.00 0.2500 13 4.00 0.50 25 2.00 1.00 50 1.00 CLUSTER DEVELOPMENT 20% 10.0 0.80 40 1.00 At least 40% open space required 30% 15.0 0.90 45 0.78 40% 20.0 1.00 50 0.60 F 0.3000 15 2.00 0.60 30 1.00 1.2000 60 0.50 M 0.3125 16 1.92 0.63 31 0.96 1.2500 63 0.48 0 0.3250 16 1.85 0.65 33 0.92 1.3000 65 0.46 50% 25.0 1.10 55 0.45 60% 30.0 1.20 60 0.33 70% 35.0 1.30 65 0.23 OBSERVATIONS: 1. In terms of the maximum number of lots achievable, the numbers are the same - 65. This option is similar in many respects to the "status quo" or conventional method of subdividing land; e.g. , a property .owner can only obtain as many lots as the land [or the market] will allow.