[Amended 2-25-1997 by L.L. No. 1-1997; 12-12-2000 by L.L. No. 4-2000; 6-26-2007 by L.L. No. 5-2007; 9-23-2008 by L.L. No. 5-2008; 9-11-2012 by L.L. No. 6-2012; 6-23-2015 by L.L. No. 2-2015]
The determination of the permitted number of dwellings, lot size and related bulk requirements for the R-4, R-2, R-1, R-1/2, R-1/4, R-MF/6, R-MF/4, PD-CCRC, GB and PO Districts shall be as follows:
A. General purpose. The permitted number of dwellings for any proposed development site is equal to the total site area (in acres) multiplied by the density factors assigned for each district.
B. Density factors.
(1) Density factors for R-4, R-2, R-1, R-1/2, R-1/4, R-MF/6, R-MF/4, PD-CCRC, GB and PO Districts. The maximum density factors below shall be used in the calculation of maximum density expressed in the resulting number of dwellings. The total site area, in acres (as determined by actual on-site survey), shall be multiplied by the maximum density factor for the district to calculate the number of dwellings (rounded to the lowest whole number).
| Maximum Density Factor |
|---|
District | Without Bonus | With Bonus1 |
|---|
R-4 | 0.25 | 0.31 |
R-2 | 0.50 | 0.63 |
R-1 | 1.0 | 1.25 |
R-1/2 and PO | 2.0 | 2.5 |
R-1/4 | 4.0 | 5.0 |
R-MF/6 | See Note 2 | See Note 3 |
R-MF/4 | See Note 2 | See Note 3 |
PD-CCRC | See Note 2 | See Note 3 |
GB | 4.0 | 5.0 |
NOTES: |
|---|
1 | Density bonus of approximately 25%. |
2 | Refer to the Table of General Use Requirements and the Table of Uses and Density for density specified for each use, multiply total site area, in acres, by the number of dwelling units per acre permitted. |
3 | The bonus in this section (§ 250-18) does not apply to the R-MF/6, R-MF/4 and PD-CCRC Zoning Districts. Refer to the Table of General Use Requirements and the Table of Uses and Density. |
(2) All subdivisions of 10 or more lots shall be required to provide for the construction of affordable housing dwellings, in accordance with the affordable housing regulations contained in Article
XXII of this chapter or an amendment thereto, on 10% of the total number of approved lots. For example, one lot out of 10 approved lots shall be for construction of an affordable housing dwelling. In the calculation of the required number of lots for affordable housing dwellings, when 10% of the total lots results in a fraction of a whole number, fractions of 0.6 or greater shall result in the creation of an additional affordable housing dwelling lot. Alternatively, two affordable housing rental accessory apartments may be constructed on two of the 10 approved lots in lieu of one affordable housing single-family dwelling.
(3) The density factor with bonuses may be applied to development, in the R-4, R-2, R-1, R-1/2, R-1/4, GB and PO Zoning Districts, at the discretion of the Planning Board when, in its judgment, the proposed development promotes one or more of the following features:
(a) The preservation of prime agricultural land.
(b) The preservation of the site's natural resource land areas, including, but not limited to, lakes, ponds and watercourses, wetlands, mature woodlands and exemplary habitats, habitats of state concern and state-listed protected species.
(c) The preservation of a historic area or landmark site.
(d) The provision of affordable housing in an otherwise market rate multifamily dwelling development in a GB District.
(e) The provision of a proportion of affordable housing dwellings above the proportion required herein for 10 or more subdivision lots, or, in subdivisions of less than 10 lots, a reasonable proportion or number of affordable housing dwellings.
(f) Other unique and innovative design aspects.
C. Average density (cluster development). Where the Planning Board determines that cluster development is feasible and appropriate, in accordance with §
250-17A herein, the minimum lot sizes may be reduced for single-family detached dwellings to no less than 1/2 acre for the R-4 District and 1/4 acre for the R-2 Districts, and for single-family attached dwellings to no less than 10,000 square feet for the R-4 and R-2 Districts. The bulk requirements for these situations shall be those applicable to Use Groups f, h and i, respectively. The same requirements shall apply to the R-1 District as for the R-2 District. Average density shall not be permitted in the GB, PO, R-1/2 and R-1/4 Districts.