Accessory Structures in Bessemer, AL: What Residents Actually Need to Know

If you live in Bessemer or are thinking about moving there, accessory structures are one of those things you probably won't think about until they affect you directly. Bessemer has 4 specific rules on the books covering different aspects of accessory structures, and some of them might surprise you.

Carport Rules

Bessemer's Zoning Ordinance (Appendix B) treats carports as accessory structures. Per Sec. 8.6, accessory structures may be built in a rear yard but cannot occupy more than 30% of the required rear yard and must be at least 5 ft from side and rear lot lines. Per Sec. 8.3, accessory structures are not allowed in any required front yard.

Key details: Rear Yard Coverage: Max 30% of required rear yard. Side/Rear Setback: 5 ft minimum (Sec. 8.6). Front Yard: Prohibited (Sec. 8.3). Garage to Street: 25 ft from ROW (Sec. 8.3).

Contact your local code enforcement office for specific penalty information.

Shed Rules

Bessemer requires building permits for structures exceeding approximately 200 sq ft. Smaller sheds that do not serve as living space may be exempt from permits but must comply with zoning setbacks. The minimum permit fee is $26. All contractors need a Bessemer business license.

Key details: Permit Threshold: ~200 sq ft (check with city). Minimum Permit Fee: $26. Setbacks: Per zoning district requirements. Contractor License: Bessemer business license required.

Building without permit: $200 to $500. Setback violation: forced relocation or removal. HOA fines separate.

Garage Conversions

Garage conversions in Bessemer require a building permit. The city enforces the 2015 IBC suite. Converting a garage to living space must meet building code requirements for habitable rooms. Off-street parking requirements under the zoning ordinance must still be met.

Key details: Permit Required: Yes, building permit. Building Code: 2015 IBC / 2011 NEC. Parking: Must maintain off-street requirements. Contact: Building Dept., 1700 3rd Ave N.

Unpermitted conversion: $500 to $2,000. May require restoration to garage or retroactive permitting.

ADU Rules

Bessemer's zoning ordinance does not explicitly permit ADUs in residential zones. Alabama has no statewide ADU mandate. Jefferson County guidance suggests ADUs may be limited to 200 sq ft in unincorporated areas, but Bessemer's specific rules depend on zoning district.

Key details: ADUs Permitted: Not explicitly — zoning review needed. State Mandate: None — locally regulated. Jeff. Co. Guidance: 200 sq ft max in unincorporated areas. Contact: Planning & Zoning (205) 424-4060.

Unpermitted ADU: $500 to $2,000. May require demolition or retroactive permitting. Zoning violation: $250/day.

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

The Bottom Line

Bessemer'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 Bessemer is broadly strict or permissive.

All of the above reflects Bessemer's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.