Accessory Buildings & Structures

 ACCESSORY BUILDINGS

Accessory buildings are subordinate to, and serve a purpose customarily incidental to, the principal building.  Examples of Accessory Buildings include sheds, detached garages, and gazebos. A site plan indicating the intended location of the building is required with the permit packet.

Accessory buildings for commercial or multi-family developments require site plan approval, therefore, specific design criteria and location will be determined during the approval process.

  • Accessory buildings may not be constructed over easements or impact drainage.
  • The total coverage of all accessory buildings and structures cannot cover more than 50% of the rear yard.
  • Protection from decay is required on all wood siding, sheathing, and framing less than 8 inches from the exposed ground.
  • The maximum height of accessory buildings is one story or 15’.
  • Restrictive covenants may have additional requirements.
Large accessory buildings (greater than 75 sf) have the following additional requirements:

  • Typically, a minimum 5’ setback from the property line is required, however, accessory buildings 600 sf or larger must adhere to the principal building’s required setbacks. Contact the Community Development Department for property-specific setbacks.
  • May be located in rear yards only.
  • 5’ minimum separation is required between the principal building and the accessory building.
  • Construction materials should be similar to the principal structure and in character with the surrounding built environment.
  • Building Slabs: 
- Buildings 400 sq. ft. or less may use a 4" slab.
- Buildings 401 to 600 sq. ft. must have a 12" x 12" reinforced edge footing completely around the perimeter below the 4" slab; vegetation shall be stripped and a minimum compacted aggregate shall be placed under the floor.
- Buildings 601 sq. ft. or larger shall have 42" deep frost footings.


Small accessory buildings (equal to or less than 75 sf) have the following additional requirements:

  • Typically, a minimum 5’ setback from the property line is required. Contact the Community Development Department for property-specific setbacks.
  • May be located in rear yards only, however, small accessory buildings can encroach into the secondary front yard on corner or double frontage lots. Contact Community Development for property-specific information.
  • No separation is required between accessory buildings and primary or large accessory buildings.
  • Small accessory buildings do not have to conform to design standards for larger buildings, however, they must be made of durable outdoor materials.
Please click here for accessory building information and permit packet.

ACCESSORY STRUCTURES
Accessory structures are similar to accessory buildings in that they are subordinate and incidental to the principal building, but accessory structures are not enclosed and do not have a roof. Fences, decks, pools, dog runs, flagpoles, and sport courts are a few examples of accessory structures. A site plan indicating the intended location of the structure must be provided with the permit application. Requirements for accessory structures are:

  • Accessory structures, except decks over 50 sf and fences, may be constructed in any yard.
  • The total coverage of all accessory buildings and structures cannot cover more than 50% of the rear yard, and 30% of the side yard it is located in.
  • Accessory structures cannot interfere with easements or drainage.
  • Typically, a 5' setback from the rear property line and a 2' setback from the side property line is required. Contact Community Development to verify property-specific setbacks.
  • There are additional requirements for the following accessory structures. Click the links for an information and permit packet, or Contact Community Development for those projects without a link.
  • Restrictive covenants may have additional requirements.