Mobile, Alabama Building Permit Guide

Building permits inside the City of Mobile are issued by Build Mobile, the city’s development and permitting department, on the 3rd Floor, South Tower of Government Plaza, 205 Government Street (main number 251-208-7696; permit questions and plan submissions 251-208-7602). Plans and permits are managed in the city’s CSS online portal. Mobile is Alabama’s oldest city and its principal port, and both facts shape the permit file here: a large stock of historic buildings, and a Gulf coast exposure that drives design before the code does.

This guide covers the department and how to reach it, the code edition that governs a filing here, what permits cost and who may pull them, and how inspections are booked. Rules that apply everywhere in Alabama are summarized in each section, with a link to the full statewide explanation.

This guide covers work inside the City of Mobile limits. Surrounding unincorporated land is permitted by Mobile County.

What requires a building permit in Mobile?

Under the city's locally adopted codes, a permit is required for most construction activity inside the city limits.

Exemptions are narrow and local, and an exemption from a building permit is not an exemption from zoning, setbacks, floodplain rules, utility approval or a fire authority review. Confirm scope with the department before work starts rather than after.

Which code edition applies

Mobile enforces locally adopted International Codes with city amendments, administered by Build Mobile. Because Alabama adoption is local, the city's editions are set by ordinance and are not necessarily aligned with Mobile County's. Coastal jurisdictions commonly layer wind design and floodplain provisions onto the base code, and that local layer carries much of the practical requirement. Confirm the editions and amendments in force on your filing date.

In Alabama, where a project is and what it is decide who reviews it, and whether anyone reviews it at all. There is a State Building Code, but its scope is deliberately narrow. There is a statewide residential code, but it is enforced only by local jurisdictions that run residential permitting and inspection programs (§ 34-14A-12(b)). And everything else — ordinary private commercial and residential work — is permitted and inspected locally, by whichever city or county has taken that job on.

The State Building Code is administered by the Division of Construction Management (DCM), a division of the Alabama Department of Finance (§ 41-4-400), under Title 41, Chapter 9, Article 6 of the Code of Alabama. DCM adopted the 2021 International Building Code effective 1 July 2022, and amended it on 17 March 2025 to pull in portions of the 2024 International Building Code and its companion codes. But DCM applies that code only to work on state-owned property or using state funds, to all public and private K–12 schools, to public postsecondary schools, and to hotels, motels and movie theatres. On municipal and county-owned projects DCM’s jurisdiction is limited to ADA Standards compliance. DCM has no jurisdiction over residential property, and none over commercial property beyond hotels, motels and theatres.

So for the overwhelming majority of private construction in Mobile, the code that governs you is the one the City of Mobile Build Mobile department has adopted, and the office that enforces it is the local one.

From 1 January 2027, under Act 2024-443, a residential home builder must build to the applicable residential code (the Alabama Residential Building Code, or the local code where one applies) even where no building department inspects the work. Since 1 October 2024 the Alabama Home Builders Licensure Board adopts the residential code, and the Licensing Board for General Contractors the commercial energy code. Alabama’s codes and the 2027 change

Who handles permitting in Mobile?

Build Mobile handles plan review, permit issuance and inspections inside the city limits. Mobile County permits unincorporated territory; in the city’s police jurisdiction outside its limits, who enforces building codes there depends on the city’s and county’s arrangements under § 11-40-10(b)(2).

Mobile has a large stock of historic buildings and several historic districts. Where a property is designated, design review by the Architectural Review Board or the Mobile Historic Development Commission runs alongside the building permit rather than in place of it (Build Mobile Historic Development, 251-208-7281). Materials, openings, roofing, porches and signage can all be constrained in ways that interact awkwardly with code-driven upgrades if the two tracks are addressed in the wrong order. Establish designation before exterior work is designed.

The port and industrial waterfront add a second layer on larger projects. Shipbuilding, aerospace manufacturing, terminal and logistics work bring environmental, access and utility considerations alongside the building set, and on waterfront parcels the flood and wind questions are at their most demanding.

In 2025, building permits issued in Mobile authorized 301 new privately owned housing units, 199 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.

A county’s building code applies in its unincorporated areas; inside a city it applies only with the city’s consent, so confirm for the specific parcel whether the city or the county issues. Outside the city limits, a county code may be enforced in a city’s police jurisdiction only as § 11-40-10(b)(2) provides. County authority and police jurisdictions in Alabama

Permit types

Residential permits

Residential work is dominated by renovation and restoration in the historic neighbourhoods, together with infill and subdivision construction toward the city's edges. Older low-lying stock makes the floodplain substantial-improvement threshold a live question on renovations, and wind-resistive detailing — continuous load path, connection hardware, opening protection — is expected rather than optional.

Commercial permits

Commercial work spans downtown redevelopment and adaptive reuse, port and industrial construction, medical and institutional development, and retail and hospitality. Adaptive reuse of historic commercial buildings is a defining category, bringing change of occupancy, accessibility triggers, fire separation and structural verification together in buildings with no original drawings.

Statewide rules also shape Alabama submittals: commercial and multi-family plans must be sealed by an Alabama-licensed design professional where the thresholds require it; a parcel in a FEMA Special Flood Hazard Area generally needs floodplain approval before the building permit; where adopted, storm shelter (ICC 500) and coastal wind provisions drive the detailing; and no state, county or city body may require residential fire sprinklers (§ 34-14A-12.2). Sealed plans, flood, storm and sprinklers in Alabama

Mobile permit costs and fees

Mobile permit fees are set by the Building Codes Permit Fee Schedule Ordinance (28-052, 2022) and are based on building valuation data (on alterations and repairs, the contract value). On new construction and additions where all trades are performed, one fee of $5.50 per $1,000 of valuation up to $50,000 and $4.50 per $1,000 above covers building, electrical, plumbing, gas and mechanical work; otherwise each trade pays its own fee. There is no residential plan-review fee; commercial plan review is $100, and re-submittals cost extra. Mobile County maintains an entirely separate schedule.

Fee schedules are revised on each jurisdiction’s own cycle, so ask Mobile for the schedule in force on your filing date, and ask separately about plan review, trade, re-inspection and revision charges. How Alabama permit fees work

Trade permits and who may pull them

Alabama licenses contractors through five state boards: the Licensing Board for General Contractors (undertakings of $100,000 or more), the Home Builders Licensure Board (residential work over $10,000, and residential roofing over $2,500), and separate electrical, plumbing and gas, and HVAC boards that license by trade regardless of project value. A local business licence and registration with the building department are commonly required as well. Contractor licensing in Alabama

How to apply for a Mobile building permit

Review rules, permit duration, revival and appeal routes come from each Alabama jurisdiction’s own ordinance, so ask Mobile which code editions apply on your filing date, how long a permit stays valid and where appeals go. Where a jurisdiction has adopted no building code, no building permit is issued, but zoning, floodplain, health and utility requirements can still apply. Review and corrections in Alabama

Inspections in Mobile

Standard checkpoints include foundation, framing, rough-in electrical, plumbing and mechanical, insulation and final, with a certificate of occupancy required before legal occupancy or use. Coastal work adds elevation verification and inspection of wind-resistive connections and opening protection.

Wind-resistive detail and, in historic renovation, concealed structural repair are the two categories most often covered too early. Sequence inspections so connections and repairs remain observable, and keep elevation documentation and product approvals on site.

Do not cover work before the required inspection has been approved. Keep the issued permit, the approved plans, energy documentation, product listings, special-inspection reports and your correction responses available on site.

Mobile permit search and official resources

Permit records sit with the authority that issued them, which in Alabama makes record research a jurisdictional question before it is a clerical one. A search of the wrong office returns nothing and proves nothing — and in parts of the state a property may genuinely have no permit history because no permit was ever required. If you are buying, refinancing or renovating an existing building, ask the City of Mobile Build Mobile department what it holds for the parcel, whether any permit was closed without a final inspection, and whether the property was inside the enforcing jurisdiction at the time the work was done.

Annexation, changing police jurisdiction boundaries and counties adopting codes at different times all mean that the authority over a parcel today is not necessarily the authority that governed it when a previous addition or alteration was built.

These are the primary sources behind this guide. Codes, fee schedules and portal procedures change, and in Alabama a jurisdiction’s own published packet can lag an adoption by months — the adopted ordinance governs, not an un-updated handout. Confirm the position for your filing date.

• Build Mobile
• Alabama Home Builders Licensure Board
• Alabama Licensing Board for General Contractors
• Alabama State Building Code (Division of Construction Management)
• Code of Alabama Title 34, Chapter 14A

Frequently asked questions

What are Build Mobile's counter hours?

Monday, Tuesday, Thursday and Friday from 8:00am to 3:00pm, and Wednesday from 8:00am to 1:00pm. The short Wednesday is easy to miss when scheduling a submittal or a fee payment.

Does Mobile County issue permits inside the city?

No. The city permits its own limits through Build Mobile. Mobile County covers unincorporated territory; in a city’s police jurisdiction outside its limits, who enforces building codes there depends on the city’s and county’s arrangements under § 11-40-10(b)(2).

How does historic designation affect my project?

Where a property is designated, design review runs alongside the building permit and does not replace it. It can constrain materials, openings, roofing and signage, so check designation before exterior work is designed.

I am renovating an older home in a flood zone — is that just a repair?

Not necessarily. Substantial damage and substantial improvement thresholds under the floodplain programme can require the whole structure to be brought into compliance. Establish the threshold before scoping the work.

What drives coastal design here?

Design wind speed and exposure, and the FEMA flood zone for the specific parcel. These determine connection detailing, opening protection and elevation, and they are established before design rather than during review.

What changes on 1 January 2027?

Under Act 2024-443 a residential home builder must build in accordance with the applicable residential building code from that date. The duty attaches to the builder's licence rather than to a local building department, so it applies even where no inspector will attend.

Simplify Mobile permitting with Alliance Permitting

Mobile combines a coastal design problem with a historic-fabric problem, and both are decided before drawings are developed. Add a short midweek counter day and the practical lesson is that sequencing matters here more than drawing volume.

Trusted by leading builders, developers, and national contractors — 21+ years of filing in the jurisdictions we write about.

Contractors and builders choose Alliance for Mobile because the work is done by people who have stood at the counter:

• We establish flood zone and design wind criteria for the parcel before design begins.
• We check historic designation before exterior alterations are drawn.
• We test renovation scopes against floodplain substantial-improvement thresholds.
• We plan submittals and payments around the Wednesday early close.
• We sequence inspections so concealed connections and repairs stay observable.

Alliance Permitting is a permit documentation and submission company in Alabama. We prepare your paperwork, file it correctly and coordinate with the building department through issuance. We are not a contractor and we do not perform licensed plan review or inspections; that work stays with your licensed team and the jurisdiction.

This guide is provided by Alliance Permitting for general information about Mobile permitting. Requirements, fees, and procedures change; confirm details with the permitting authority before relying on them.