Detached ADU near Boulder, CO
O'Brien Construction LLC
2235 West 47th Avenue, Denver, CO 80211
21 miles
O'Brien Construction LLC is an ADU contractor specializing in design, engineering, and construction of accessory dwelling units. Services include detached ADUs, additions, and design-assisted builds, with free consultations available.
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Olerra Living Innovations
1945 Canyon Boulevard, Boulder, CO 80302
1 miles
Olerra Living Innovations builds modular ADUs called Flex-Flats in Colorado. Models range from 245 to 735 sq ft, featuring steel-frame construction, 10+ year warranties, and 10,000+ design options. Projects complete in 3–6 months, costing 40–50% less than site-built ADUs.
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River North Basement Company
3629 Jason Street, Denver, CO 80211
22.3 miles
River North Basement Company is a Denver ADU contractor offering construction and remodeling services for accessory dwelling units, including rental units, in-law suites, and guest spaces, ensuring code compliance throughout.
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Studio Shed
1500 Cherry Street, Louisville, CO 80027
8 miles
Studio Home is a Colorado-based prefab ADU builder serving all 50 states. With 18+ years experience and 6,000+ projects, they offer panelized ADU kits, backyard studios, granny flats, and in-law suites with fixed pricing and full project management.
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Elmntl
4559 Ute Highway, Longmont, CO 80503
14.6 miles
Elmntl builds modular ADUs across Denver and Colorado's Front Range. Specializing in detached ADUs, garage conversions, and in-law suites, they handle zoning, permitting, and installation with a 10-year structural warranty.
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Arch Design & Build
9800 Mount Pyramid Court, Englewood, CO 80112
39.5 miles
Arch Design & Build is a licensed Denver remodeling company specializing in ADU construction, garage conversions, kitchen & bathroom remodeling, basement finishing, and home additions. They offer upfront pricing, VR design previews, and a proven step-by-step process.
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ALH Contracting
4950 South Yosemite Street, Greenwood Village, CO 80111
33.9 miles
ADUs are self-contained units like garage apartments or granny flats built on existing properties. In Denver, ALH Contracting helps homeowners build ADUs for rental income, family housing, or added property value.
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AAA Home Improvements
10701 West Morrison Road, Lakewood, CO 80227
25.5 miles
AAA Home Improvements is a Denver ADU contractor building detached, garage conversion, basement, above-garage, and attached ADUs across the Front Range. They manage design, permitting, and construction for homeowners seeking rental income, multigenerational living, or added property value.
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Denver Dream Builders
2339 East 5th Avenue, Denver, CO 80206
24.3 miles
Colorado general contractor since 2005, offering ADU builds, kitchen remodels, bathroom renovations, basement finishing, roofing, and new home construction. Free consultation, no upfront payment, licensed and insured.
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NAGY Design
2255 Sheridan Blvd. Unit C270, Edgewater, CO 80214
21.7 miles
NAGY Design built a standout 2,200 sq ft detached ADU in Denver's Sloan's Lake, nominated for Best ADU 2022. Costs range $100K–$300K. Their full-service process covers planning, permits, and construction oversight.
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Colorado Tiny Homes
200 S Wilcox St., #301, Castle Rock, CO 80104
49.6 miles
Colorado Tiny Homes builds luxury, eco-friendly ADUs across Denver, Castle Rock & the Rockies. Offering standard, mid-range & custom models, plus garage conversions. Free lot assessment included. Full permitting & project management handled.
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3R Services
10825 West 32nd Avenue, Wheat Ridge, CO 80033
19.7 miles
3R Services builds ADUs in Arvada, CO, including backyard cottages, garage conversions & in-law suites. Projects cost $80K–$250K, take 3–6 months, and include permitting, transparent pricing & a 1-year warranty.
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F9 Productions Inc.
825 Crisman Dr #100, Longmont, CO CO 80501
14.4 miles
F9 Productions is a Colorado-based ADU architect and builder offering full-service design and construction. Award-winning firm handling residential, commercial, and ADU projects including garage conversions, interior design, and 3D visualization.
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EcoMod
22303 Interstate 76 Frontage Road, Hudson, CO 80642
33.2 miles
EcoMod is a Denver-based ADU builder offering sustainable, affordable housing using repurposed shipping containers. Models range from 320–800 sq ft, starting at $64,000. Homes are 9x stronger, last 200+ years, and cut construction costs by 30%.
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Krick Design Build
759 1/2 Elati Street, Denver, CO 80204
24.6 miles
Krick Design + Build is a Colorado Front Range residential design-build firm specializing in ADUs. Founded by Licensed Architect Matthew Krick, they've completed 57+ ADUs including backyard cottages, garage conversions, and in-law suites.
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What you need to know
Searching for top Detached ADU ADU Contractors in Boulder, Colorado? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Detached ADU ADU Contractor in Boulder ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Detached ADU professionals can guide you through every step.
Boulder homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Detached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Detached ADU ADU Contractors in Boulder, Colorado, and get started today.