Accessory dwelling unit permit cost

Looking for accessory dwelling unit permit cost in Montgomery, AL? Call AccessoryDwellingUnit Direct for a contact a provider — no obligation. Licensed adu builders serve Montgomery and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

What affects the price

Building an ADU involves variables that shift your total investment. The footprint size and complexity of the architectural design are primary factors. Are you planning a detached unit that requires new utility trenching, or is this a garage conversion that uses existing plumbing? Site accessibility, soil conditions, and your choice of finishes—like luxury flooring versus standard options—also play significant roles. Permitting fees vary widely depending on your local municipality and current zoning requirements. Exact pricing confirmed free on the call.

About this service

Securing permits is a mandatory step that covers city review fees, impact fees, and inspections to ensure your build meets safety codes. These costs vary significantly by city and the scope of your specific project. Because local jurisdictions set their own fee structures, we assist you in estimating these expenses during our initial consultation. We ensure you have a clear picture of all regulatory requirements before you begin. Exact pricing confirmed free on the call.

Frequently asked in Montgomery

How much does an ADU cost?

What are the rules for ADUs in Alabama?

Alabama has state building codes, but ADU regulations are primarily determined by individual cities, including Montgomery. These rules often address lot coverage, setbacks, parking, and occupancy. The professionals you consult will be knowledgeable about Montgomery's specific requirements.

Is an ADU allowed in my neighborhood?

Many areas in Montgomery now permit ADUs, but zoning laws can vary significantly. The type and placement of an ADU must comply with specific neighborhood ordinances. Speaking with an expert will help you determine the feasibility for your particular location.

What's involved in the permit process?

Permitting an ADU in Montgomery typically involves submitting detailed construction plans to the city for approval. You'll need to ensure your design meets all local building codes and zoning requirements. The specialists can guide you through this essential step.

Can I get advice on design options?

Yes, you can receive expert advice on ADU design. Professionals can suggest styles and layouts that complement your existing Montgomery home and suit your needs. They can help you visualize different possibilities for your property and maximize its potential.

What are the disadvantages of ADUs?

Potential disadvantages include the upfront construction costs and the possibility of increased utility bills. You'll also want to consider the impact on your existing yard space and privacy. Understanding these factors is important before starting an ADU project in Montgomery.

Also serving nearby: Columbus · Hoover · Birmingham · Tuscaloosa · South Fulton

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More on this: HUD ADU resources — ADU policy and financing research.

Service area details

195,287residents

1,221per sq mile

8ZIP codes served

Serving all of Montgomery — population 195,287; about 1,221 residents per square mile across 159.9 sq mi. ZIP codes covered include 36101, 36102, 36103, 36104, 36105, 36106, 36107, 36108.

Neighborhoods served in Montgomery: Downtown Montgomery, East Montgomery, West Montgomery, Maxwell Air Force Base area, Blount Springs — and every surrounding area.