Cost of accessory dwelling unit

Looking for cost of accessory dwelling unit 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

Building an ADU involves several variables that shift your final total, such as the size of the unit, whether you choose a detached structure or a garage conversion, and the complexity of your site’s plumbing and electrical needs. We help you navigate these choices to keep your project on track. Exact pricing confirmed free on the call.

Frequently asked in Montgomery

What are the disadvantages of ADUs in Montgomery?

In Montgomery, potential disadvantages can include navigating specific zoning regulations concerning lot coverage and setbacks. You'll also want to consider impacts on your property's drainage and any necessary utility upgrades. The initial construction costs are a significant factor to weigh.

How much does an ADU cost in Alabama?

What are the rules for ADUs in Alabama?

ADU rules in Alabama are set by individual municipalities. For Montgomery, you'll need to review the city's zoning ordinance for details on allowable ADU types, minimum lot sizes, and parking requirements. Local expertise is crucial for understanding these regulations.

Is an ADU allowed in Montgomery?

Yes, accessory dwelling units are permitted in Montgomery, provided they meet the city's zoning and building requirements. These often address aspects like the ADU's relationship to the main house and its access to public utilities. Discussing your plans with a local professional is advised.

Can I build an ADU on my property 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, Old Cloverdale, Garden District, Maxwell Air Force Base Area, East Montgomery, West Montgomery — and every surrounding area.