Find Trusted ADU Builders Near You
The premier directory for verified accessory dwelling unit contractors and builders across the United States. Search, compare, and connect with confidence.
2,377
ADU Professionals Listed
1,321
Cities Covered
All 50
States Covered
How It Works
Find and connect with the right ADU builder in three simple steps
Search
Browse our directory by state and city to find ADU contractors in your area.
Compare
Review profiles, contact info, and business details to shortlist the best match.
Build
Connect directly with your chosen contractor and start bringing your ADU project to life.
ADU Builders by State
Find ADU builders and contractors near you. Our directory covers all 50 states with local contact info and detailed profiles.
Complete Guide to Finding ADU Builders Near You
Accessory dwelling units — commonly called ADUs, in-law suites, backyard cottages, or granny flats — are one of the fastest-growing segments of residential construction in the United States. ADU Locator is the most comprehensive directory of ADU builders and contractors across all 50 states, connecting homeowners directly with local professionals who specialize in designing and constructing accessory dwelling units.
Whether you're planning a detached backyard ADU, a garage conversion, a basement apartment, or an attached in-law suite, finding a contractor with specific ADU experience makes a significant difference in cost, timeline, and permit success. Our directory lets you search by state and city to find ADU professionals in your area, review their contact details, and reach out directly — no middlemen, no lead-generation fees.
Tips for Hiring an ADU Builder
- Verify the contractor holds a current state license and carries general liability insurance
- Ask specifically about ADU permit experience in your city — local knowledge matters
- Request references from at least two completed ADU projects, not just general remodels
- Get itemized bids from 2–3 contractors before committing to compare scope and pricing
- Confirm the contractor will pull permits and manage inspections on your behalf
Types of ADU Builders in Our Directory
General Contractors
Full-service builders who manage all trades from foundation to finish. Best for detached ADUs and new construction.
ADU Specialists
Companies focused exclusively on ADUs. Often provide design-build services and have deep familiarity with local permit requirements.
Remodeling Contractors
Ideal for garage conversions, basement ADUs, and attached in-law suite additions that involve modifying existing structure.
Common ADU Types
Detached ADU
Standalone unit in backyard
Garage Conversion
Attached or detached garage
Basement ADU
Below-grade living space
Attached ADU
Addition to primary home
Pro Tip
The best ADU builders often have waitlists of 3–6 months, especially in high-demand markets like California, Oregon, and Washington. Contact your top two or three choices simultaneously so you can compare timelines and pricing — and get on the schedule of the contractor you want before they're booked out.
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