Mobile Zoning & Land Use Guide
Key Zoning Facts
Mobile Zoning Overview
Mobile, Alabama's port city on the Gulf Coast, administers its land use regulations through the Urban Development Department. As one of the oldest cities in Alabama, Mobile's zoning must balance historic preservation with modern development needs, coastal hazard mitigation, and economic growth centered around the Port of Mobile and aerospace manufacturing.
The city's zoning ordinance establishes a traditional district framework with residential, business, commercial, and industrial classifications. Mobile's historic districts, including the De Tonti Square and Oakleigh Garden districts, have additional design review requirements administered through the Architectural Review Board.
Flood hazard management is a particularly important consideration in Mobile due to its low-lying coastal geography. Substantial portions of the city lie within FEMA-designated flood zones, and development in these areas must comply with both federal floodplain regulations and the city's flood damage prevention ordinance.
Key Zoning Districts
Mobile's zoning code includes residential districts (R-1, R-2, R-3), business districts (B-1 through B-4), commercial districts (LI, HI), and several overlay districts. The historic district overlays add design review requirements to protect the character of Mobile's notable architectural heritage.
ADU Regulations
Mobile permits accessory structures in certain residential zones under local ordinance provisions. Alabama has no statewide ADU law, so all regulations are locally determined. ADUs must meet local size, height, setback, and parking requirements, and owner occupancy is typically required.
Development Process
Building permits are processed through the Urban Development Department. The Mobile Planning Commission reviews subdivision plats, site plans, and rezoning requests. The Board of Zoning Adjustment handles variances and special exceptions.
Regulatory Layers That Apply in Mobile
Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.
Federal
- FEMA Flood Zones: Applicable
- View FEMA Flood Map
County — Mobile County
- Role: Property records, tax assessment, unincorporated area planning
City / Municipal
The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.
Overlay Districts
No overlay districts identified.
Private Restrictions
- HOA / CC&Rs common: Yes
- Check HOA CC&Rs for additional restrictions.
Primary Zoning Districts
- Min Lot
- 9,000 sq ft
- Max Height
- 35 ft
- Front Setback
- 25 ft
- Side Setback
- 7 ft
- Rear Setback
- 20 ft
- Min Lot
- 6,000 sq ft
- Max Height
- 45 ft
- Front Setback
- 25 ft
- Side Setback
- 8 ft
- Rear Setback
- 20 ft
- Min Lot
- None
- Max Height
- 45 ft
- Front Setback
- 10 ft
- Side Setback
- 0 ft
- Rear Setback
- 10 ft
ADU Rules in Mobile
- Max Size
- 750 sq ft
- Max Height
- 25 ft
- Rear Setback
- 5 ft
- Side Setback
- 5 ft
- Parking
- 1 off-street space required
- Owner Occupancy
- Required
- Permit Timeline
- 30-60 days
Permit Costs & Timelines
Permit Costs & Timelines
Specific permit fee schedules for Mobile are available from the local planning department. Fees vary based on project type, scope, and valuation.
Check Mobile permit fees →