Do I need a permit for shed or accessory structure in Collierville?

It depends. Whether shed or accessory structure needs a permit in Collierville comes down to the details of your project.

Tennessee does not set one statewide shed threshold, and the 200 square foot figure from the model International Residential Code does not govern here. Who enforces residential construction depends on your address: where a city or county has neither taken on residential code enforcement itself nor opted out by a two-thirds vote of its legislative body, the State Fire Marshal's Office runs the residential permit and inspection program using state-contracted inspectors. So the first question is not the size of the shed but which authority covers you. Confirm whether your city or county enforces its own code, has opted out, or falls under the State Fire Marshal program, then ask that office for the size threshold. Zoning setbacks apply regardless, and a separate permit is needed for any electrical service run to the shed. Collierville treats a detached storage building, garage, arbor, pergola, or pool house as an accessory structure, and a building permit is generally required to build one; confirm whether a small shed qualifies for the adopted-code exemption for one-story accessory structures with the Building and Codes Division before building. Zoning rules apply on top of the building permit: an accessory structure must stay out of the front and required side yards, sit at least as far from a property line as it is tall and never closer than five feet, and residential lots under two acres are limited to two accessory structures, with a garage over 150 square feet required to match the home's style. Tennessee requires a state contractor license for residential work at 25,000 dollars and above, with Shelby County Home Improvement licensing for smaller jobs, so verify licensing if a contractor builds a larger structure.