Land unsuitable for development

A. When calculating the number of residential, commercial or industrial building lots or units permitted on any parcel, land included in all of the following categories shall be considered unsuitable for development and shall be deducted from the minimum building acreage of the parcel:

• 1. Fresh water wetlands, except that area of perimeter wetland within fifty (50) feet of the edge of any bog, marsh, swamp or pond and any applicable one hundred (100) foot or two hundred (200) foot river bank wetlands, as defined by Rhode Island General Laws Section 2-1-20 (1987), as amended, whichever is greater.

• 2. Coastal wetlands, as defined by Rhode Island General Laws Section 46-23-6(B) (3) (1990), as amended.

• 3. Areas with slopes in excess of twenty-five (25) percent.

B. Land described in subsection A 1—3, above, may be included as part of any lot in any subdivision or land development project; provided, however, that land unsuitable for development shall not be counted toward the minimum lot size required in article XIII of this ordinance. This requirement does not apply to existing lots of record.