How Fort Myers Handles Accessory Structures: A Practical Guide

Fort Myers maintains 106 local ordinances across all categories, and 5 of those deal specifically with accessory structures. Here is a breakdown of what the city actually requires, what is prohibited, and where Fort Myers falls on the strict-to-permissive spectrum compared to other cities.

Carport Rules

Carports in Fort Myers are accessory structures regulated by LDC § 118.3.4.A and require a Florida Building Permit for any structure over 200 sq ft. Engineered hurricane anchorage to 170 mph (Lee County wind zone) is required. Attached carports must meet the principal-building setbacks (typically 20 ft front, 10 ft side, 10 ft rear in RS-5/6/7); detached carports under 200 sq ft may use the reduced 5 ft side/rear accessory setback.

Key details: Code Section: LDC § 118.3.4.A. Permit Threshold: 200 sq ft (Florida Building Code). Wind Zone: 170 mph (Lee County) — engineered anchorage. Detached (under 200 sq ft): 5 ft side/rear setback. Detached (200+ sq ft): 10 ft side, 10 ft rear (RS-5/6/7).

Building a carport without a required permit triggers a stop-work order and double permit fees. Setback or location violations are enforced by Code Enforcement through Special Magistrate: fines up to $250/day for first offense, up to $500/day for repeat offenses.

ADU Rules

Fort Myers permits non-commercial guesthouses, cottages, and garage apartments accessory to a principal dwelling under LDC § 118.3.11 (defined in Chapter 142). These accessory dwellings are not subject to density calculations. Garage apartments specifically are only permitted in the Dean Park Historic District under LDC § 118.3.4.B. Size is typically capped at 50% of the principal dwelling or 1,000 sq ft (whichever is smaller).

Key details: Code Section: LDC § 118.3.11 (referenced via § 118.3.4); Chapter 142 (Definitions). Max Size (typical): 50% of principal dwelling or 1,000 sq ft (whichever is smaller). Accessory Coverage Cap: 30% of principal structure gross floor area. Garage Apartments: Only allowed in Dean Park Historic District. Density: Not counted as separate density unit.

Building or occupying an ADU/guest house without permits is a violation of LDC § 118 and Florida Building Code: stop-work order, double permit fees, Code Enforcement action through Special Magistrate (fines up to $250/day first offense, $500/day repeat), and an order to remove the unpermitted structure or bring it into compliance.

Garage Conversions

Converting a garage to habitable space in Fort Myers requires a Florida Building Permit and zoning review. If the conversion creates a separate dwelling unit with kitchen and entrance, it becomes a guest house/ADU subject to LDC § 118.3.11. Off-street parking required for the principal dwelling must still be met. Garage apartments specifically are only allowed in the Dean Park Historic District.

Key details: Building Permit: Required (Florida Building Code). ADU Trigger: Cooking facilities + separate entrance → LDC § 118.3.11. Garage Apartment: Only allowed in Dean Park Historic District (§ 118.3.4.B). Accessory Coverage Cap: 30% of principal structure floor area. Off-Street Parking: Principal dwelling parking must be replaced on-site.

Converting a garage without permits triggers a stop-work order, double permit fees, Code Enforcement action through Special Magistrate (fines up to $250/day first offense, $500/day repeat), and an order to restore the garage to its permitted condition or bring it up to code.

Shed Rules

Fort Myers regulates sheds as accessory structures under LDC § 118.3.4.A. Sheds under 200 sq ft may have a 5-foot side and rear setback in residential districts; larger sheds must meet the zone's full accessory setbacks. A Florida Building Permit is required for any shed over 200 sq ft, and engineered wind-load anchorage to 170 mph (Lee County Wind Zone) is required for permitted structures.

Key details: Code Section: LDC § 118.3.4.A (Accessory Structures). Permit-Exempt Size: Under 200 sq ft (no building permit; placement rules still apply). Reduced Setback (under 200 sq ft): 5 ft side/rear in residential. Permit Required: 200 sq ft or larger. Standard Setback (200+ sq ft): 10 ft side, 10 ft rear (RS-5/6/7).

Building without a required permit or violating setbacks triggers a stop-work order, Code Enforcement action through Special Magistrate (fines up to $250/day first offense, $500/day repeat), double permit fees, and possible order to relocate or remove the structure.

Tiny Homes

Tiny homes on a permanent foundation in Fort Myers are treated as either a single-family dwelling or an accessory guest house under LDC § 118.3.11. They must meet the Florida Building Code (including FBC Appendix Q for dwellings 400 sq ft or less) and the zone's lot size and setback standards. RS-7 (the smallest single-family zone) requires 5,000 sq ft min lot, which precludes ultra-small lot tiny homes. Tiny homes on wheels (RV class) cannot be used as a primary residence in residential zones.

Key details: Building Code: Florida Building Code + FBC Appendix Q (≤400 sq ft dwellings). As Principal Dwelling: Must meet zone's min lot/setback (RS-7: 5,000 sq ft / 50 ft width). As Accessory Guest House: LDC § 118.3.11 (capped at 30% of principal). Tiny Home on Wheels (RV): Cannot be used as residence in residential zones. Wind Zone Requirement: 170 mph (Lee County FBC).

Living in an RV-classified tiny home in a residential zone is a violation of LDC § 118 and the Florida Building Code, enforceable by Code Enforcement through Special Magistrate: fines up to $250/day first offense, up to $500/day repeat, plus an order to vacate. Building a site-built tiny home without permits triggers Florida Building Code enforcement and a stop-work order.

This is one of the stricter rules in Fort Myers's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.

The Bottom Line

Fort Myers's accessory structures rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Fort Myers is broadly strict or permissive.

Keep in mind that Fort Myers can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.