Fence Installation Permits in Mobile

Local Rule

City of Mobile Build Mobile Permitting and Predevelopment; Mobile City Code

Mobile's adopted 2021 International Residential Code includes a standard building-permit exemption for fences not over 7 feet high, and available Mobile code materials do not identify a stricter city-wide amendment removing that exemption for ordinary residential fences; a separate secondary source instead cites a 6-foot threshold specifically for the city, so this figure carries some uncertainty and should be confirmed with Build Mobile before relying on it. Under Unified Development Code Chapter 64, front-yard fences are capped at 4 feet, with corner-lot visibility triangle rules also applying regardless of the building-permit threshold. This differs from unincorporated Mobile County, which separately and clearly exempts fences 7 feet or less from a building permit through Mobile County Inspection Services, so a property's status inside versus outside city limits matters.

Source · Verified September 2026

Mobile Building Department

Hours and procedures can change — call ahead to confirm.

How This Compares to Mobile County

Mobile's own rule is shown above (No permit under 7 sqft). Here is the separate rule that applies at the county level, for context:

Mobile County Inspection Services (unincorporated areas)

Erecting a fence 7 feet or less in height does not require a permit in unincorporated Mobile County. There is no zoning in the unincorporated areas of the county, so beyond the building permit threshold, no local ordinance governs fence placement, materials, or setbacks outside a municipality's limits.

See the full county page

Nearby Cities with Verified Rules

Other cities near Mobile with a confirmed fence installation rule:

FAQs

Building It Yourself? Here's What You'll Need

Popular tools and materials homeowners use for a fence installation project:

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