A.
Each dwelling unit of a duplex dwelling must comply with the minimum lot area per dwelling unit as specified § 340-104.
B.
The dwelling units and individual lots of a duplex dwelling or townhouse may be sold separately if separate water, sewer, electrical, heating, and all other utility systems are provided and if separate lots for all dwelling units in the subject building are created at the same time and in conformity with the applicable regulations and standards governing the subdivision of land.
C.
The following regulations shall apply to townhouses in any district where townhouses are permitted:
(2)
Any side yard adjacent to the line of a lot occupied by a detached dwelling or to a lot in a single-family residential district shall be at least 25 feet.
(3)
There shall be a minimum separation between townhouse buildings on all sides of 12 feet.
(4)
Unless otherwise restricted by zone regulations, no more than six dwelling units shall be included in any one structure containing townhouses.
(5)
If areas for the common use and enjoyment of occupants of a townhouse building are provided through joint ownership of those areas by all owners of units in the townhouse building, those areas shall be suitably maintained out of funds collected employing regular periodic assessment of all owners of townhouse units in the townhouse building. The developer of the townhouse building shall set up and provide for the perpetual existence of management and funding of maintenance of the common areas in connection with the townhouse building.
D.
The following regulations shall apply to multifamily dwelling in any district where permitted:
(1)
The minimum tract size for a multifamily residential complex shall be 20,000 square feet.
(2)
There shall be a minimum separation between multifamily buildings on all sides of 12 feet.
(3)
At a minimum of 10% of a multifamily residential complex, the site shall be in common open space. Common open space areas or facilities not dedicated to public use shall be protected by legal arrangements, satisfactory to the Planning Commission, sufficient to assure their maintenance and preservation for whatever purpose they are intended. Covenants or other legal arrangements shall specify the ownership of common areas and method of maintenance.

