An accessory building attached to a principal building shall comply in all respects with the yard requirements of this chapter for the principal building. Detached accessory buildings shall be located in other than the front yard, and if located in a side or rear yard area, shall be set back as indicated in § 13-10, Zoning District Regulations, for the specified distance, except that in the R-8 Residential Zone, storage sheds containing less than 100 square feet of floor area may be located not less than three feet from any side or rear lot line. Any storage shed having a floor area of 100 square feet or more shall be not less than five feet from any side or rear lot line.

Accessory buildings may occupy not more than 35% of the rear or side yard area in any residential zone, provided that: such buildings shall not exceed 16 feet in height to the peak of the roof.

No detached accessory structure, in any residential zone, shall be less than five feet from the principal building.

If garage space is attached to or provided on the first floor of a single-family residence, vehicular entrances thereto shall be limited to not more than two garage doors, the maximum size of which shall not exceed nine feet in width and seven feet in height.

No accessory building located in any zone shall be either a quonset or a trailer, except for temporary structures erected or placed in the B-2, M-1 or M-2 Zones for a period not exceeding two months, or as extended pursuant to subsections 13-10.6d, 10, 13-10.8d,3 and 13-10.9d,1, or emergency or temporary structures in the R-8 Residential Zone for an initial period not exceeding six months, or as extended up to three months, as provided in subsection 13-10.4d,9 of this chapter, Temporary Uses and Structures, while a principal building is being repaired or modified.

No accessory building shall be used for residential purposes by any person or persons, including members of the family or occupants of the principal building or others employed on the premises.

The term "residential purposes" used in this subsection is to be broadly construed as including all normal residential use, excluding only accessory uses such as storage, utilities, mechanical equipment, parking, workshops, property maintenance activities, garden support facilities.

Detached accessory buildings shall not have exterior staircases that provide access to any attic space; however, interior stairs or pull down stairs shall be permitted.

Any lot shall not contain more than two accessory storage shed structures, in addition to a detached garage. The combined floor area of any two storage shed accessory structures shall be no more than 180 square feet.

Accessory structures, such as a detached garage, storage shed, and gazebo over 100 square feet should be anchored for flood hazard purposes.

Unroofed decks and/or raised patios which do not rise above the height of the first floor level may extend up to five feet into the side yard setback; up to 10 feet into the front yard setback; and located not less than 10 feet from any rear yard lot line. At-grade patios shall conform to the accessory structure setbacks as set forth in § 13-10.3A, Schedule of Area, Yard, Setback and Height Requirements, of this chapter.