The lot area per unit requirement for single-family, two-family, townhouses, apartments and planned unit developments shall be calculated on the basis of the total area on the lot or in the project and as controlled by an individual and joint ownership.
A. Single- and two-family uses shall be as specified in the respective zoning districts subject to the following:
1. A-1, A-2, R-1 and R-2 District lots and lots of record and preliminary platted lots having legal standing on May 26, 2009: Except as may be otherwise required by this title, the lot area shall be measured as the area of a horizontal plane within the lot lines.
2. Lots of record in the R-C, R-3, R-4A, R-4, R-5, R-6 and R-7 Districts established after May 26, 2009: Except as may be otherwise allowed by this title, the lot area shall be measured as the area of a horizontal plane within the lot lines excluding stormwater basins, drainageways, wetlands, required wetland buffers, water bodies, public rights-of-way, regional drainage and utility easements, and slopes steeper than three to one (3:1).
B. Townhouse and similar independent unit entry: Structure platted in as base/unit lots, five thousand (5,000) square feet.
C. Multiple-family: Two thousand five hundred (2,500) square feet.
D. Elderly housing: One thousand (1,000) square feet. (Prior Code § 20-17-9)