ADU Contractors in Idaho
Green Belt Homes
1740 E. Fairview ave #1066, Meridian, ID 83642
Greenbelt Homes is your trusted partner for garage conversions Nampa. With their expertise, attention to detail, and commitment to customer satisfaction, they can transform your underutilized garage into a versatile and functional living space that adds value to your home.
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Alpine Forge
430 East Floating Feather Road, Eagle, ID 83616
Alpine Forge builds precision ADUs and tiny homes in Nampa, Idaho. Using a panelized method, they offer faster timelines, cost predictability, and energy-efficient designs for rental units, guest houses, in-law suites, and backyard cottages.
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Renaissance Remodeling, Inc.
4220 Osage Street, Garden City, ID 83714
Full-service ADU contractor in Boise offering design-build solutions, including zoning, permits, construction, interior finishes, and rental-ready features for accessory dwelling units tailored to homeowner needs.
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America’s Dream HomeWorks
104 Moyie Street, Post Falls, ID 83854
America's Dream HomeWorks offers room additions, ADUs, garage conversions & backyard studios across Northern California. CSLB licensed, A+ BBB rated, serving Sacramento, Oakland, Napa & more.
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Boyd Remodeling & Construction
6126 West State Street, Boise, ID 83703
Boyd Remodeling & Construction builds custom ADUs including in-law suites, detached units, garage conversions, and backyard cottages. Their ADU construction services help homeowners add rental income, family space, or home offices.
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All Wood ADU, LLC
412 East 41st Street, Boise, ID 83714
All Wood ADU is a premier custom ADU builder in Treasure Valley, Boise. They specialize in detached ADUs, garage conversions, granny flats, and custom homes, offering modern floorplans, space-maximizing designs, and quality craftsmanship.
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Iron Crest Remodel
1001 Hearthstone Drive, Boise, ID 83702
Licensed ADU contractor Iron Crest Remodel serves Nampa, Idaho, building detached cottages, garage conversions, and in-law suites. Costs range from $70K–$270K+, with rental income potential of $950–$1,500/month. Full permits, design, and warranties included.
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Lodestar Construction
9030 N Hess Street #1036, Hayden, ID 83835
Lodestar Construction Services builds custom ADUs in North Idaho, serving Coeur d'Alene, Hayden, Post Falls & Sandpoint. Specializing in detached ADUs, garage conversions & in-law suites for rental income or multigenerational living.
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Freimark Construction
776 East Riverside Drive, Boise, ID 83616
ADU costs in Boise depend on structure type, design, and site conditions. Detached ADUs cost more than attached units. Check zoning eligibility before building. ADUs offer rental income, multigenerational living, and increased property value.
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208 Tiny Homes
6126 West State Street, Boise, ID 83703
Quality ADU builder crafting durable tiny homes with board and batten siding, composition shingle roofs, open-concept interiors, quartz countertops, luxury vinyl plank flooring, and mini-split HVAC systems for year-round comfort.
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Vision Built Construction LLC
3655 North Government Way, Coeur d'Alene, ID 83815
Vision Built Construction LLC is a trusted general contractor in Coeur d'Alene, Idaho, with 25+ years of experience. Specializing in custom homes, ADU construction, remodeling & commercial builds. Military discounts available.
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Woodwright Custom Builders
3255 East Red Stone Drive, Boise, ID 83712
Woodwright Custom Builders offers expert ADU services in Boise, ID, including detached units, garage conversions, basement ADUs & in-law suites. Serving Ada County with permit management & a clear design-build process.
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PlanPro LLC
10350 West Kit Fox Court, Boise, ID 83709
Pathway Builders
1430 West Ustick Road, Meridian, ID 83646
Pathway Builders offers custom and semi-custom ADU construction in Boise and Treasure Valley. They build detached, attached, and garage conversion ADUs. Use their online instant quote tool to estimate costs before consulting.
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208 Tiny Homes
6126 West State Street, Boise, ID 83703
208 Tiny Homes is a Boise, Idaho-based ADU builder serving the Treasure Valley. Founded in 2023, they handle design, permitting, and construction of accessory dwelling units, granny flats, and in-law suites with premium finishes and expert project management.
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Other cities in Idaho
What you need to know
ADU Contractors in Idaho: Building in the Gem State
Idaho is one of the fastest-growing states in the United States, with cities like Boise, Nampa, and Meridian experiencing significant population booms. This rapid growth has created a strong demand for additional housing solutions, making Accessory Dwelling Units (ADUs) an increasingly popular choice for Idaho homeowners. Whether you're looking to house extended family, generate rental income, or increase your property value, working with experienced ADU contractors in Idaho is essential to navigating the state's unique building landscape.
Idaho ADU Regulations and Zoning Laws
Unlike some states with statewide ADU legislation, Idaho leaves ADU regulations largely up to individual municipalities. This means the rules can vary significantly depending on where you live. In Boise, for example, ADUs are permitted in most residential zones, but homeowners must comply with specific setback requirements, lot coverage limits, and owner-occupancy rules. In Ada County and surrounding areas, zoning ordinances may restrict the size and placement of ADUs. It is critical to work with a knowledgeable local ADU contractor who understands the specific codes in your city or county before breaking ground.
What to Look for in Idaho ADU Contractors
Choosing the right ADU contractor in Idaho requires careful consideration. The best contractors will have experience working within Idaho's local permitting systems and will be familiar with the state's International Residential Code (IRC) adoptions and amendments. Here are key qualities to look for:
- Idaho state contractor licensing – Ensure your contractor holds a valid license issued by the Idaho Contractors Board.
- Experience with local municipal permitting processes in cities like Boise, Coeur d'Alene, or Twin Falls.
- Knowledge of Idaho's energy efficiency codes, which apply to new ADU construction.
- Proven portfolio of completed ADU projects, including detached units, garage conversions, and basement ADUs.
- Transparent pricing and detailed project timelines.
Types of ADUs Commonly Built in Idaho
Idaho's diverse geography — from the high desert of the Snake River Plain to the forested regions of northern Idaho — means that ADU designs must account for local climate conditions. Common ADU types built by Idaho contractors include:
- Detached ADUs – Standalone structures built in the backyard, popular in suburban Boise neighborhoods.
- Attached ADUs – Units connected to the primary home, often used for multigenerational living.
- Garage Conversion ADUs – Converting existing garages into livable spaces, a cost-effective option in many Idaho cities.
- Basement ADUs – Finishing or converting basements into separate dwelling units.
Start Your Idaho ADU Project Today
Working with a qualified ADU contractor in Idaho ensures your project meets all local zoning requirements, building codes, and safety standards. Given the state's rapid growth and evolving housing needs, now is an excellent time to invest in an ADU. Take the time to research licensed contractors in your area, request multiple quotes, and verify their experience with Idaho-specific regulations to ensure a smooth and successful build.