Accessory dwelling unit contractor

Looking for accessory dwelling unit contractor in Miami, FL? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Miami 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 several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

A contractor oversees the physical build, managing the subcontractors, materials, and daily construction progress. They are responsible for making sure the structure is built according to the approved plans and local safety standards. You need a contractor when you have your designs finalized and are ready for the actual building phase to begin. They act as the primary point of contact for all site activity.

Frequently asked in Miami

What are the disadvantages of ADUs in Miami?

Potential disadvantages of ADUs in Miami include the initial construction investment and the permitting process, which can be complex. You'll also need to consider ongoing maintenance, potential impacts on property taxes, and ensuring compliance with hurricane building codes. Consulting with local experts is essential.

How much does an ADU cost in Florida?

The cost of an ADU in Florida, including Miami, varies significantly based on its size, design, chosen materials, and site preparation needs. Factors like foundation type, utility connections, and compliance with stringent hurricane building codes all influence the final price. A free, detailed quote from a local Miami contractor is the most accurate way to determine cost.

What are the rules for ADUs in Florida?

Florida state law provides a framework for ADUs, but local municipalities like Miami-Dade County have specific zoning ordinances. These typically address lot size, setbacks, parking, and ensuring the ADU is secondary to the primary dwelling. Working with experienced Miami ADU builders ensures compliance with these local regulations.

Is an ADU allowed in Florida?

Yes, ADUs are allowed in many areas of Florida, with specific regulations set by individual cities and counties like Miami-Dade. It is crucial to confirm your property's zoning and adhere to local building codes, especially those related to wind resistance. Professionals specializing in ADUs in Miami can help you determine eligibility and navigate the approval process.

What are the rules for ADUs in Miami?

Also serving nearby: Hialeah · Miami Gardens · Miramar · Hollywood · Pembroke Pines

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

Service area details

455,924residents

12,665per sq mile

8ZIP codes served

Serving all of Miami — population 455,924; about 12,665 residents per square mile across 36.0 sq mi. ZIP codes covered include 33101, 33102, 33106, 33111, 33112, 33116, 33122, 33124.

Neighborhoods served in Miami: Wynwood, Coral Gables, South Beach, Brickell, Little Havana, Doral — and every surrounding area.