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20
<br />DEVELOPMENT OF SLIDING SCALE
<br />A. Zoning Districts with Minimum Lot Size = 40,000 Square Feet
<br />Table Al. Minimum lot required for private road subdivision providin at least 33°/
<br />The seventeen divisions in the preceding chart would be cumbersome to use. The following
<br />chart simplifies the sliding scale into four increments for minimum lot size according to
<br />percentage of preserved open space.
<br />g
<br />Lot size is decreased by Area is
<br />o open sNac;U,
<br />The effective
<br />increments of 2,352.94 sq. ft. based on a
<br />density or
<br />and rounded to .nearest whole 12 -lot
<br />number of acres
<br />number. 2,352.94 sq. ft. is the subdivision
<br />per each
<br />difference between 80,000 sq. ft.
<br />(max.
<br />buildable lot is
<br />(max. lot size) and 40,000 sq.ft.
<br />number of
<br />calculated by
<br />(min. lot size) divided by the lots
<br />dividing the total
<br />number of integral increments permitted
<br />acreage in the
<br />between 33% and 50%
<br />with a
<br />subdivision by
<br />private
<br />the number of
<br />A
<br />road).
<br />units allowed
<br />B
<br />C
<br />D
<br />E
<br />F
<br />Starting with X = 80,000 sq. ft. at
<br />33% open space,
<br />C = 12 * B
<br />D = A *E
<br />E = C /(1 -A)
<br />F = (E/12)
<br />B = X minus
<br />/43,560 sq.ft
<br />(80,000 sq.ft.- 40,000 sq.ft.)
<br />/(50 -33)
<br />%
<br />Min. lot size
<br />Lots
<br />Open
<br />Total sq. ft.
<br />Acres /DU
<br />open
<br />(sq. ft.)
<br />(sq. ft).
<br />space
<br />space
<br />(sq. ft.)
<br />0.33
<br />80,000
<br />960,000
<br />472,836
<br />1,432,836
<br />2.7
<br />0.34
<br />77,647
<br />931,765
<br />480,000
<br />1,411,765
<br />2.7
<br />0.35
<br />75,294
<br />903,529
<br />486,516
<br />1,390,045
<br />2.7
<br />0.36
<br />72,941
<br />875,294
<br />492,353
<br />1,367,647
<br />2.6
<br />0.37
<br />70,588
<br />8471059
<br />497,479
<br />1;344,538
<br />2.6
<br />0.38
<br />68,235
<br />818,824
<br />501,860
<br />1,320,683
<br />2.5
<br />0.39
<br />65,882
<br />790,588
<br />505,458
<br />1,296,046
<br />2.5
<br />0.40
<br />63,529
<br />762,353
<br />508,235
<br />1,270,588
<br />2.4
<br />0.41
<br />61,176
<br />734,118
<br />510,.150
<br />1,244,267
<br />2.4
<br />0.42
<br />58,824
<br />705,882
<br />511,156
<br />1,217,039
<br />2.3
<br />0.431
<br />56,471
<br />677,647
<br />511,207
<br />1,188,854
<br />2.3
<br />0.44
<br />54,118
<br />649,412
<br />510,252
<br />1,159,664
<br />2.2
<br />0.45
<br />51,765
<br />621,176
<br />508,235
<br />1,129,412
<br />2.2
<br />0.46
<br />49,412
<br />592,941
<br />505,098
<br />1,098,039
<br />2.1
<br />0.47
<br />47,059
<br />564,706
<br />500,777
<br />1,065,483
<br />2.0
<br />0.48
<br />44,706
<br />536,471
<br />495,204
<br />1,031,674
<br />2.0
<br />0.49
<br />42,353
<br />508,235
<br />488,304
<br />996,540
<br />1.9
<br />0.50
<br />40,000
<br />480,000
<br />480,000
<br />960,000
<br />1.8
<br />The seventeen divisions in the preceding chart would be cumbersome to use. The following
<br />chart simplifies the sliding scale into four increments for minimum lot size according to
<br />percentage of preserved open space.
<br />
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