Attached ADU near Boulder, CO
Verified Builders
1660 Lafayette Street, Denver, CO 80218
24.1 miles
Verified Builders is a licensed Denver remodeling company offering ADU construction, kitchen & bathroom remodeling, basement finishing, and custom home builds. Serving Denver, Littleton, Aurora & more since 2016.
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Original Roots Design + Build
383 Corona Street, Denver, CO 80218
25.6 miles
Central Denver's trusted ADU builders and design/build remodelers specialize in older homes. Offering garage conversions, granny flats, and detached ADUs, their skilled team delivers client-inspired design, quality craftsmanship, and outstanding service.
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Arise Constructions & Remodels
44 Cook Street, Denver, CO 80206
26.7 miles
Arise Constructions is a Denver, CO full-service residential contractor offering custom homes, ADUs, remodels, additions, and structural work. They use the JobTread portal for transparency and back all work with a minimum one-year warranty.
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North Hill by Toll Brothers
14133 Kearney Loop, Thornton, CO 80602
18.4 miles
Expert ADU contractors handle detached ADUs, garage conversions, granny flats, JADUs & in-law suites. From design and permitting to final inspection, experienced ADU builders ensure code-compliant, high-quality accessory dwelling unit construction.
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DL Engineering Inc.
9100 West Jewell Avenue, Lakewood, CO 80232
25.4 miles
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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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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Custom ADU Builders LLC
6564 West Atlantic Avenue, Lakewood, CO 80227
24.6 miles
Custom ADU Builders, LLC is Denver's trusted ADU contractor offering detached ADUs, garage conversions, and home remodeling. Serving Aurora, Lakewood & more with transparent pricing and expert permitting support.
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L&D Construction
5151 Bannock Street, Denver, CO 80216
21.4 miles
L&D Construction builds ADUs across Denver, including detached units, garage conversions, and attached living spaces. Projects focus on multigenerational living, rental income, and accessibility, serving neighborhoods citywide with zoning-compliant, adaptable designs.
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ModernSpace ADU Construction Team Parker
10015 South Parker Road, Parker, CO 80134
40.9 miles
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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Prenvalley Builders
5180 Fox Street, Denver, CO 80216
22.6 miles
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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TinyMod
8150 Gray Fox Dr, Evergreen, CO 80439
26.2 miles
TinyMod (TMOD™) is an offsite development partner offering feasibility analysis, project management, and factory coordination for builders. Services support ADUs, modular communities, BFR, and missing middle housing with up to 60% faster build times.
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Easthope Design
Oro Valley, Fort Collins, CO 85755
39.2 miles
Easthope Design is a Fort Collins ADU design firm led by architect Richard Esteb. Specializing in custom ADUs, garage conversions & granny flats across Northern Colorado, they handle design, permits, zoning & construction supervision.
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ADU 5280
440 Pennsylvania Street, Denver, CO 80203
25.3 miles
ADU 5280 is a Denver-based ADU design-build company since 2013, offering detached ADUs, garage conversions & home additions. They manage zoning, permits, design & construction for homeowners looking to boost property value.
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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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Superior Construction & Home Renovations
9815 Eagle Creek Circle, Commerce City, CO 80022
23.3 miles
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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Other cities in Colorado
What you need to know
Searching for top Attached 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 Attached 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 Attached 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 Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Attached ADU ADU Contractors in Boulder, Colorado, and get started today.