For lots of three acres or less:
The cumulative building area allowed for all detached accessory structures is 576 total square feet, or 30 percent of the total square footage of the house (see the Real Estate Assessment website for floor area of the house for individual lots).
Detached accessory structures can only be located in the side or rear yards.
If located in the side yard, the structure must maintain the same setbacks as for the principle structure in that zoning district.
If located in the rear yard, the structure must be at least five feet from the side property line, and five feet from the rear property line. If the property is a corner lot, the structure must be a minimum of 20 feet from the side property line adjacent to the side street.
Maximum height is 18 feet (except as noted below for Townhouse lots and R-16/R-30 districts).
For two-level detached structures, the square footage for both levels will be included when determining the maximum allowable building size.
For lots larger than three acres:
Detached accessory structures must maintain the same setbacks as for the principle structure in that zoning district.
Lots larger than three acres are not subject to maximum floor area for detached accessory structures.
Detached structures can be located in any yard (front, side, or rear).
Maximum height is 35 feet.
For townhouse lots:
For townhouse units in the R-6, RPC, PMD and PMR zoning districts, the following standards shall apply: Detached accessory structures are allowed in the rear yard only, and can be located up to the rear property line.
Detached structures may cover no more than 50 percent of the total rear yard area.
For end-unit townhouses, a 10’ exterior side yard setback is required.
Maximum height is 12 feet.
For lots zoned R-16 and R-30:
Detached accessory structures must be set back at least 10 feet from all property lines.
Maximum height 15 feet.