How much does it cost to build an ADU in Miami?
ADU costs in Miami vary based on type and size. A garage conversion ADU typically costs $60,000 to $130,000, a home addition ADU
$80,000 to $180,000, and a new detached ADU $120,000 to $300,000 or more depending on size and finishes. Black Wall Builders
provides a detailed ADU cost estimate after your free in-home consultation.
Are ADUs legal in Miami?
Yes. Accessory dwelling units are legal in Miami and throughout Miami-Dade County, subject to zoning requirements, setback rules,
and Miami-Dade building permits. Black Wall Builders is experienced with Miami’s ADU regulations and manages the entire permitting
process for you.
How long does it take to build an ADU in Miami?
Building an ADU in Miami typically takes 6 to 12 months from initial consultation to certificate of occupancy, including the Miami-Dade
permitting process. Garage conversion ADUs tend to be faster than new detached ADU construction. Black Wall Builders manages the
entire timeline to keep your Miami ADU project on track.
How much rental income can a Miami ADU generate?
Miami is one of the strongest rental markets in the country. A well-built ADU in South Florida can generate $1,500 to $4,500 or more
per month in rental income depending on location, size, and finishes — making ADU construction an excellent investment for Miami
property owners.
Do you handle all ADU permits in Miami?
Yes. Black Wall Builders manages the complete Miami-Dade ADU permitting process — from initial permit applications and structural
engineering to all required inspections and final certificate of occupancy. We handle everything so you don’t have to navigate Miami’s
building permit process yourself.
Detached Backyard ADU
Garage Conversion ADU
Pool House ADU
Two-Story ADU
Modern Prefab ADU
Multigenerational Suite
Junior ADU (JADU)
Luxury Rental ADU
Hurricane-Resistant ADU
1 