Best adu — Miami, FL | AccessoryDwellingUnit Services

Looking for best adu 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

Defining the best unit for your property depends on your specific goals, such as maximizing rental yield or creating a versatile multi-generational living space. A great build features high-quality insulation, smart storage solutions, and an aesthetic that complements your main house. We emphasize durable construction and efficient design to ensure your unit remains a valuable asset for your property over the long term. Let us help you plan the right layout. Exact pricing confirmed free on the call.

Frequently asked in Miami

What are the disadvantages of ADUs in Miami?

How much does an ADU cost in Florida?

The cost of an ADU in Florida can vary widely based on its size, design complexity, and the materials chosen, especially considering coastal building requirements. Factors such as site preparation, foundation work, and interior finishes all contribute to the overall price. For an accurate estimate tailored to your Miami property, it's best to obtain a personalized quote from a local professional.

What are the rules for ADUs in Miami?

Miami-Dade County has specific zoning ordinances and building codes that regulate ADUs. These typically address aspects like minimum lot size, maximum dwelling unit size, setback requirements, and parking. Understanding these local rules is crucial for a successful ADU project. A local expert can help you navigate these requirements effectively.

Is an ADU allowed in Miami?

Yes, ADUs are generally allowed in Miami, provided they comply with Miami-Dade County's established zoning and building regulations. The county often supports ADUs as a way to increase housing options. You must ensure your property meets all local requirements, and a qualified professional can confirm this for you.

How do I find the best ADU contractors in Miami?

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

All cities in Florida →

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: Coral Gables, Upper East Side, Coconut Grove, South Beach, Brickell, Wynwood — and every surrounding area.