Accessory structures greater than 120 square feet for residential structures and 200 square feet for commercial structures shall require zoning administrator approval.
The quick and simple answer is: you usually don't need a permit if the shed is 120 square feet or less.
- One story detached accessory structures (ex. shed) less than 400 sq. ft. - Fences not over 6' in height - Retaining walls not over 4' measured from the bottom of the footing - Water tanks directly on the ground, not over 5,000 gallons - Sidewalks and driveways, with certain conditions.
Building: Sidewalks and driveways not more than 30 inches. Painting, papering, tiling, carpeting, cabinets, counter. Temporary motion picture, television, and theater. Shade cloth structures constructed for nursery or agricultural. Window awnings supported by an exterior wall of.
A building permit is required if you are altering a space. Alterations include relocation, repair or demolition of structural and non-structural walls, changes to mechanical, plumbing, gas or any electrical work. Depending on the scope of work, licensed professionals may be required to prepare your building plans.
Per the California Residential Code detached accessory structure not exceeding 120 square feet does not require a building permit if there is no plumbing, electrical, and or mechanical equipment. Please note, Sheds and/or Structures under 120 square feet do require a Planning Permit.
In general, a building permit is required when any structural change or major alteration is made to a building or when any new construction is undertaken.
Accessory structures greater than 120 square feet for residential structures and 200 square feet for commercial structures shall require zoning administrator approval.
In the City of Los Angeles, if the size of floor space exceeds 120 sq. ft. or the structure is over 12 feet in height, you need a permit. Any electrical work will require an electrical permit.