Flagler County, FL Accessory Structures: Shed & Carport Rules (2026)

08 of the Flagler County Land Development Code governs sheds and other detached accessory buildings across every residential district in unincorporated Flagler County. The general requirements set the ground rules: an accessory building must sit on a lot that already has a principal structure, cannot be placed in the front yard setback area at all, and cannot occupy any recorded easement, which matters for the many lots in the county carrying drainage or utility easements. The code sets a flat 12-foot maximum height for detached accessory buildings, a lower ceiling than most principal-structure height limits in the underlying zoning district.

An accessory building that is instead built to meet the principal building's own setback requirements takes on that district's regular height limit rather than the 12-foot accessory cap, which gives a property owner the option to build a taller structure if they are willing to place it at the principal building's setback line. On placement, a detached shed has to sit at least 10 feet from any other building on the lot and at least 10 feet from the rear lot line. Side yard setbacks are not given a flat number; instead, the code requires the accessory building to meet the same side yard setback that applies to the district's principal structures, so the number varies by zoning district.

Corner lots get an additional rule: an accessory building cannot sit closer to the street than the required street side yard setback line for that residential district. An accessory building physically attached to the house by a breezeway or similar roofed passage stops being an 'accessory building' for setback purposes and instead has to meet the full setback requirements of the principal structure. This section applies only in unincorporated Flagler County and does not govern accessory structures inside Palm Coast, Flagler Beach, Beverly Beach or Marineland.