Fort Myers, FL Accessory Structures: Shed Rules (2026)

Under Fort Myers LDC § 118.3.4.A, accessory structures are clearly incidental and subordinate to a permitted principal use, must be on the same lot as the principal structure, and cannot exceed 30% of the principal structure's gross floor area when combined with all other accessory structures. Accessory structures under 200 square feet in residential districts may have a 5-foot side (interior) and rear yard setback — a meaningful concession from the principal-building 10-foot side and rear setbacks. Sheds 200 sq ft or larger must meet the zone's full setbacks (typically 10 ft side, 10 ft rear in RS-5/6/7 districts) and require a Florida Building Permit. Lee County sits in the 170 mph wind speed zone under the Florida Building Code, so all permitted sheds must have engineered foundations, hurricane straps, and wind-load anchorage. Sheds cannot be placed in front setbacks, within easements, or in the 25-foot waterfront setback. Sheds may not be used for habitable space (no sleeping/living), and a shed converted to such use becomes an ADU subject to LDC § 118.3.11. Pre-fab metal or plastic sheds under 200 sq ft typically do not require a building permit but still must meet zoning placement rules; even these should be anchored against high winds.