Cost of Accessory Dwelling Unit in Miami, FL | AccessoryDwellingUnit Direct

Looking for cost of accessory dwelling unit in Miami, FL? Call AccessoryDwellingUnit Direct 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 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 Miami

What are the disadvantages of ADUs?

Potential disadvantages include the upfront construction costs, the impact on your yard space, and navigating Miami-Dade County's specific zoning regulations. You might also see an increase in utility bills. However, the benefits of added rental income and increased property value are often significant for Miami homeowners.

How much does an ADU cost in Florida?

What are the rules for ADUs in Florida?

Is ADU allowed in Maryland?

This question refers to Maryland, but our focus is Miami, Florida. ADUs are generally permitted in Miami, Florida, provided they meet the county's zoning and building code requirements. Consulting with local experts is recommended for accurate guidance.

What are the rules for ADU in California?

Our services are for Miami, Florida, not California. California has statewide ADU laws. For Miami, it's vital to understand and adhere to local Florida ordinances, and the professionals we work with are well-versed in these areas.

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