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Accessory Structures Information

Article Published 03/21/2014

A detached accessory structure is a structure detached from, but located on the same lot as the principal or main structure, the use of which is incidental and accessory to that of the principal or main structure.
Here are a few things to consider before purchasing or constructing a shed, detached garage, portable carport or playhouse.
• All detached accessory structures, regardless of the size are required to meet specific setback requirements. This is typically a minimum of 3 feet from the rear and side property lines and 6 feet from the main structure.

• Detached accessory structures are NOT permitted to be located in front of the front foundation line of the main structure, or in the required side yard setback area. 

When located in the rear-yard, a detached accessory structure may not cover more than 25 percent of the rear yard area. No more than 60 percent of the entire lot may be covered by hard surface; this includes all structures, driveways, sidewalks, patios, decks, porches and concrete slabs.

• Determining a location for a detached accessory structure may require approval from the utility company if placed within a Public Utility Easement. 

• A building permit is NOT required for one-story detached accessory structures used as tool and storage sheds, playhouses and similar uses, provided that the floor area does not exceed 200 square feet. Structures less than 200 square feet must comply with all setback requirements.

• A permit is required for all accessory structures containing electrical, plumbing or mechanical.

-Please contact the Layton City Building Division at 801-336-3760 or email your questions to Handouts and other information can be found on our website at 
Asking questions before you begin a project will determine if you need to obtain a permit. Even if a permit is not needed, the code official will answer construction and zoning questions and may provide valuable information.