Duval Construction
Duval Construction. General contractor. Closed · Opens 8 AM Mon
Looking for the best custom ADU builders in Jacksonville, Florida? Our directory features 7 vetted custom adu builders serving the Jacksonville area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.
Duval Construction. General contractor. Closed · Opens 8 AM Mon
AR Homes - Marcus Allen Homes, Inc.. Custom home builder. 11210 Philips Industrial Blvd STE 13, Jacksonville, FL 32256, United States
Jax Tiny Homes - Jacksonville Tiny Home & ADU Builder. Home builder. Closed · Opens 8 AM Mon
SEDA New Homes. Home builder. 2120 Corporate Square Blvd #3, Jacksonville, FL 32216
Preferred Builders of North Florida. General contractor. 2332 Dunn Ave, Jacksonville, FL 32218, United States
Specializing in ADU construction and related services in Jacksonville, FL.
Design Development & Contracting, Inc.. General contractor. 5658 Colcord Ave, Jacksonville, FL 32211, United States
Jacksonville is one of the top markets for accessory dwelling units in Florida. With growing demand for affordable housing, ADU construction in Jacksonville offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of custom adu builders in Jacksonville helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
ADU construction costs in Jacksonville typically range from $150,000 to $350,000 depending on size, design, and finishes. Garage conversions are generally less expensive ($80,000–$150,000), while custom-built detached ADUs can cost more. Get free quotes from our listed custom adu builders to compare prices.
Yes, ADU construction in Jacksonville requires building permits. Florida has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
ADU construction timelines in Jacksonville typically range from 4–12 months, depending on the project type. Prefab ADUs can be installed in 2–4 months, while custom builds may take 8–12 months including design and permitting.