Detached ADU in Colorado
Urban ADU
19 N Tejon St Suite 313, Colorado Springs, CO 80903
Urban ADU builds energy-efficient accessory dwelling units in Colorado Springs, CO. Featuring spray foam insulation, solar options, Zero Energy Ready certification, and 3D planning tools, they simplify ADU construction from permits to placement.
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Sustainable Design Build
99 Inca Street, Denver, CO 80223
Sustainable Design Build is Denver's premier ADU builder and contractor, using design-build for accessory dwelling units, garage conversions, in-law suites, backyard cottages, granny flats, and detached ADUs. Benefits: single contract, faster timelines, cost efficiency, fixed pricing. Experts in local zoning since 2017.
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Alex Home Pro
4851 S Lisbon Way, Aurora, CO 80015
Alex Home Pro builds attached, detached, garage conversion, junior, and internal ADUs. Services cover design, permitting, and construction tailored to each property. ADUs can generate rental income, house family, or add long-term property value.
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NAGY Design
2255 Sheridan Blvd. Unit C270, Edgewater, CO 80214
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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EcoMod
22303 Interstate 76 Frontage Road, Hudson, CO 80642
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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JT Home Building
1001 Bannock St Suite 416, Denver, CO 80204
JT Home Building specializes in ADU construction with 15+ years of experience. Services include detached ADUs, garage conversions, granny flats & casitas. Custom solutions for rental income, family housing & property value growth.
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ModernSpace ADU Construction Team Parker
10015 South Parker Road, Parker, CO 80134
ModernSpace ADU Construction is a trusted ADU builder in Corona with 20+ years of experience. They offer detached ADUs, garage conversions, JADUs, attached additions, and full design services including permits and 3D renderings.
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Colorado Tiny Homes
200 S Wilcox St., #301, Castle Rock, CO 80104
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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Alpine ADU
6145 Broadway, Denver, CO 80216
Alpine ADU builds custom & prefab ADUs, garage conversions, and tiny homes across Greater Denver, Boulder, Fort Collins & Colorado Springs. Services include design, permits, and full construction management on Colorado's Front Range.
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DL Engineering Inc.
9100 West Jewell Avenue, Lakewood, CO 80232
Denver ADUs (granny flats, garage conversions, in-law units) offer affordable housing density solutions. DL Engineering Inc. provides structural engineering, design, and permitting services for Denver accessory dwelling unit projects.
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Stream Home Construction
3423 North Prospect Street, Colorado Springs, CO 80907
Stream Home Construction builds attached & detached ADUs in Colorado Springs. Services include custom floor plans, permits, zoning, and inspections. They help homeowners add rental income, family space, or guest units, boosting property value.
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3R Services
10825 West 32nd Avenue, Wheat Ridge, CO 80033
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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River North Basement Company
3629 Jason Street, Denver, CO 80211
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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Superior Construction & Home Renovations
9815 Eagle Creek Circle, Commerce City, CO 80022
Superior Construction & Home Renovations builds permitted ADUs in Denver, including backyard cottages, garage conversions, and basement suites. Following Denver's 2024 expansion, ~70% of residential lots now qualify. Full-service from zoning to final inspection.
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Prenvalley Builders
5180 Fox Street, Denver, CO 80216
Prenvalley Builders is Denver's trusted ADU contractor & custom home builder. Specializing in ADUs, renovations, pop-tops & garages across the Front Range, they offer a seamless design-build process with honest pricing & energy-efficient construction.
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Other cities in Colorado
What you need to know
Searching for top Detached ADU ADU Contractors in 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 Colorado 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.
Colorado 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 Colorado, and get started today.