ADU rules in Lee County, FL — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
One accessory apartment or accessory dwelling unit is allowed per single-family residence in unincorporated Lee County. Living area is capped at 60 percent of the principal home's living area, and one extra off-street parking space is required on-site.
Lee County LDC Sec. 34-1177 governs accessory apartments and accessory dwelling units in the unincorporated county. A maximum of one accessory apartment or one accessory dwelling unit is permitted per principal single-family residence. Maximum living area is 60 percent of the principal home's living area. One additional off-street parking space is required, provided on-site. The lot must be a lawful lot of record or meet the zoning district's minimum area, width, and depth. Accessory dwelling units are subject to Lee Plan density and impact fees; accessory apartments generally are not. Municipalities (Cape Coral, Fort Myers, Bonita Springs) set their own rules.
Enforced as an LDC zoning violation through Lee County Code Enforcement; unpermitted units may be cited, fined daily, and ordered removed or brought into compliance.
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