Acadia Building Company
Caldwell, ID
5.05.0(0 reviews)
ADU ConstructionCustom Home Building
Acadia Building Company. Custom home builder
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Custom ADUCaldwell, ID
Best custom ADU builders in Caldwell, Idaho
Looking for the best custom ADU builders in Caldwell, Idaho? Our directory features 11 vetted custom adu builders serving the Caldwell area. Whether you're planning a new ADU construction, garage conversion, or backyard cottage, find the right builder for your project.
11 custom adu builders found
Average rating: 4.4
Top custom ADU builders in Caldwell
Built Right Homes LLC
Caldwell, ID
5.05.0(0 reviews)
ADU ConstructionCustom Home BuildingRemodeling
Built Right Homes LLC. Home builder
d'Arch Residential Design LLC
Caldwell, ID
5.05.0(0 reviews)
ADU ConstructionArchitecture & DesignCustom Home Building
d'Arch Residential Design LLC. Architectural designer
Adair Homes - Twin Falls, Idaho
Caldwell, ID
4.94.9(0 reviews)
ADU ConstructionCustom Home Building
Adair Homes - Twin Falls, Idaho. Home builder. 509 Blue Lakes Blvd N #2, Twin Falls, ID 83301
Tiny Idahomes LLC
Caldwell, ID
4.64.6(0 reviews)
ADU ConstructionCustom Home Building
Tiny Idahomes LLC. Custom home builder. 1050 Cascade Rd, Emmett, ID 83617
Alderwood Builders
Caldwell, ID
4.64.6(0 reviews)
ADU ConstructionCustom Home BuildingGeneral Contracting
Alderwood Builders. General contractor
Adair Homes - Caldwell, Idaho
Caldwell, ID
4.14.1(96 reviews)
ADU ConstructionCustom Home Building
Adair Homes - Caldwell, Idaho. Custom home builder. 805 Saddle Ave SUITE 103, Caldwell, ID 83605, United States
KIT Custom HomeBuilders
Caldwell, ID
3.93.9(0 reviews)
ADU ConstructionCustom Home BuildingGeneral Contracting
KIT Custom HomeBuilders. Modular home builder. 1000 Garber St, Caldwell, ID 83605, United States
Asbury Construction
Caldwell, ID
3.73.7(0 reviews)
ADU ConstructionCustom Home BuildingGeneral Contracting
Asbury Construction. General contractor
Builditusa.com
Caldwell, ID
3.03.0(0 reviews)
ADU ConstructionCustom Home BuildingGeneral Contracting
Builditusa.com. General contractor
Aerobuilders
Caldwell, ID
No reviews yet
ADU ConstructionCustom Home Building
Aerobuilders. Home builder. 19335 Lower Pleasant Ridge Rd, Caldwell, ID 83607, United States
Why Choose Custom ADU in Caldwell?
Caldwell is one of the top markets for accessory dwelling units in Idaho. With growing demand for affordable housing, ADU construction in Caldwell offers homeowners an excellent opportunity to add living space, generate rental income, or house family members. Our curated list of custom adu builders in Caldwell helps you find experienced professionals who understand local building codes, zoning regulations, and permit requirements.
What to Look for in custom ADU builders
- 1Licensed and insured custom adu builders with experience in Caldwell
- 2Knowledge of Caldwell zoning laws and ADU permit requirements
- 3Portfolio of completed ADU projects in the Caldwell area
- 4Transparent pricing and detailed project timelines
- 5Strong reviews and ratings from local homeowners
- 6Warranty coverage on construction and materials
Frequently Asked Questions
How much does it cost to build an ADU in Caldwell?
ADU construction costs in Caldwell 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.
Do I need a permit to build an ADU in Caldwell, Idaho?
Yes, ADU construction in Caldwell requires building permits. Idaho has specific ADU regulations, and local zoning laws may have additional requirements. Our listed builders can help you navigate the permitting process.
How long does it take to build an ADU in Caldwell?
ADU construction timelines in Caldwell 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.