Duplex. A duplex is two semidetached dwelling units, side by side, from ground to roof, having only one, wall in common on the dividing property line.

Townhouse. The townhouse is an attached individual dwelling unit from ground to roof, having individual outside access. Rows of attached townhouses shall contain no more than eight dwelling units.

Multiplex. The multiplex is an attached dwelling. In general, all units have independent outside access, but this is not necessary. Units may be arranged in a variety of configurations: side by side, back to back or vertically. The essential feature is the small number of units attached. No more than five units shall be attached in any group. The total of all groups shall average four units per structure.

Garden apartments. Garden apartments are multifamily buildings where individual dwelling units share a common outside access. They also share a common yard area, which is the sum of the required lot areas of all dwelling units within the building. Garden apartments shall contain more than three and no more than 16 dwellings in a single structure.