An accessory building attached to a principal building shall comply in all respects to the yard requirements of this chapter for the principal building. Detached accessory buildings shall be located in other than a required front yard and, if located in a side or rear yard area, shall conform to side or rear setback requirements of this chapter for the particular zoning district, except that one storage shed 200 square feet or less in size may be located not less than three feet from any side or rear lot line.

Accessory buildings may occupy not more than 25% of the rear or side yard area in any residential zone. With the exception of one storage shed 200 square feet or less in size, accessory buildings are subject to the maximum building coverage requirement for each zone.

No accessory building in any residential zone shall be less than five feet from the principal building or other accessory buildings, except that a shed or comparable permanent structure of 200 square feet or less may be not less than one foot from the principal building or other accessory building.

On any residential lot having an area of 20,000 square feet or more, no accessory building may exceed 750 square feet in building coverage and the aggregate building coverage of all accessory buildings may not exceed 1,000 square feet. On residential lots having an area less than 20,000 square feet, the maximum building coverage of any individual accessory building shall be 500 square feet and the aggregate building coverage of all accessory buildings may not exceed 1,000 square feet.

Accessory buildings shall not exceed 16 feet in height as measured from the average grade at the corners of the building to the top of the roof.