Apartments and townhouses are regulated and shall be reviewed to promote the establishment of appropriate population densities and concentrations that will contribute to the well-being of persons, neighborhoods, communities and regions, provide for the preservation of the environment, provide sufficient space in appropriate locations for a variety of residential uses in order to meet the needs of a variety of citizens and promote a desirable visual environment through creative development techniques and good civic design.
No apartments or townhouses shall be erected unless public or private central water supply and a central sanitary sewer system are provided as approved by appropriate state, county and local regulatory agencies and until the site plan has been reviewed and approved by the reviewing board and the board of fire engineers.
A. 
Overall theme. Each overall development shall have a compatible architectural and landscaping theme with variations in design to provide attractiveness to the development. Each project shall specify how each of the following considerations has been incorporated in the overall plans: landscaping technique; building orientation to the site and to other structures; topographic natural features such as wooded areas, drainage courses, soil conditions, and topographic relief; and building design features such as varying unit widths, staggering unit setbacks, providing different exterior materials, changing roof lines and roof designs altering building heights, and changing types of windows, shutters, doors, porches, colors and vertical or horizontal orientation of the facades, singularly or in combination.
B. 
Configuration.
(1) 
The configuration of structures may be any alignment that meets the yard requirements and does not exceed the following overall or component building lengths:
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200 feet on one plane; Dimen. a
340 feet on any angle; Dimen. b
500 feet along the center line; Dimen. c
(2) 
Any passageway between two structures which has a roof attached to both structures shall be included in calculating these lengths. Structures, as measured along the center line, shall provide one opening at ground level at least every 200 feet. This opening shall be a minimum of 15 feet in clear width and a minimum of 12 feet in clear height and located so that the floor level is at an elevation not more than eight inches above or below the finished grade of the adjoining ground. The configuration of townhouse structures may be any alignment that meets the yard requirements, but has not less than four nor more than eight units in one overall structure.
C. 
Subsurface living area. No dwelling unit shall have a living area level lower than the finished grade along the front of the structure.
D. 
Open space. All required open space shall be improved for the purpose intended as shown on the plan.
E. 
Density. No development shall exceed the density specified in this chapter.
F. 
Recreation area. Recreational facilities within an apartment or townhouse development shall be located in the designated developed open space areas, which shall be located outside of the yard areas of each structure. The specific location of any recreational facilities shall be given consideration to the proximity of structures, type of recreational facility proposed, expected noise level and evening illumination which may create a possible nuisance for residents, and expected pedestrian traffic across major interior roads or driveways.