ADU Contractors near Castle Rock, CO
Arise Constructions & Remodels
44 Cook Street, Denver, CO 80206
24 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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3R Services
10825 West 32nd Avenue, Wheat Ridge, CO 80033
29.9 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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ADU Home Tour
6825 Eaton Street, Arvada, CO 80003
34.7 miles
L&D Construction is Denver's dedicated ADU contractor, led by Colorado native David Schultz. Specializing in accessory dwelling units, detached ADUs, and backyard cottages since 2017, they bring deep local expertise and firsthand ADU building ... read more
Prestige Contractors
115 Wilcox Street, Castle Rock, CO 80104
0.5 miles
Prestige Contractors builds ADUs in Castle Rock & Douglas County with 20+ years of experience. Services include detached units, garage conversions, above-garage ADUs & attached additions. Fully permit-managed & code-compliant.
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A2Z Builders
501 South Lipan Street, Denver, CO 80223
24.4 miles
A2Z Builders is a Denver-based, family-owned Class A General Contractor with 16+ years of experience. They specialize in ADU construction, custom home builds, kitchen, bathroom, and basement remodeling across the Denver metro area.
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Sunward Steel Buildings
6800 E. Hampden Ave., Denver, CO 80224
19.3 miles
Sunward Steel Buildings offers pre-engineered steel accessory dwelling units (ADUs), including granny flats and in-law suites. As a direct manufacturer, they provide customizable, code-compliant, affordable backyard cottage solutions across North ... read more
ADU 5280
440 Pennsylvania Street, Denver, CO 80203
24.9 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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Sustainable Design Build
99 Inca Street, Denver, CO 80223
24.8 miles
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 time... read more
Giudice Builds
Colorado Springs, CO 80927
32.5 miles
Giudice Builds is a Colorado Springs ADU contractor specializing in accessory dwelling units. Projects range from $250K–$400K+, with planning from $5K. A recent 640 sq ft ADU was completed in 6.5 months for $230K.
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FBC Remodel Denver
1205 South Platte River Drive, Denver, CO 80223
23.8 miles
FBC Remodel Denver uses a Design-Build model for home additions, integrating architects and contractors under one roof for efficient, accurate budgeting and clear communication. They handle permits, offer guaranteed pricing, 3D renderings, and man... read more
Studio Shed
1500 Cherry Street, Louisville, CO 80027
43.2 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 managemen... read more
ALH Contracting
4950 South Yosemite Street, Greenwood Village, CO 80111
17.2 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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Kalin Construction
201 Columbine Street, Denver, CO 80206
24.4 miles
As experienced ADU builders in Denver, Kalin Construction has helped numerous homeowners bring their visions for their homes to life. They'll listen to your wants and needs for the project, then craft an ADU that checks all of your boxes. Whether ... read more
Rescue Restoration & Construction
1415 Park Avenue West, Denver, CO 80205
27.3 miles
Rescue Restoration specializes in constructing Additional Dwelling Units (ADUs) in Colorado. Their lead chief estimator can help design a custom ADU to fit your needs and financial goals. They are the lead resource in the Denver Metro area when it... read more
Colorado Tiny Homes
200 S Wilcox St., #301, Castle Rock, CO 80104
0.5 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 ha... read more
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What you need to know
ADU Contractors in Castle Rock, Colorado: Building in a Fast-Growing Community
Castle Rock, Colorado, is one of the fastest-growing cities in the state, situated between Denver and Colorado Springs along the I-25 corridor. This rapid growth has driven significant demand for Accessory Dwelling Units (ADUs), as homeowners look for ways to add housing options, generate rental income, or accommodate multigenerational families. Working with experienced ADU contractors in Castle Rock is essential to navigating the town's specific zoning codes, building regulations, and design standards that reflect the community's commitment to maintaining its unique character.
Castle Rock ADU Regulations and Zoning Requirements
The Town of Castle Rock has specific rules governing ADU construction that homeowners and contractors must follow carefully. ADUs are generally permitted in single-family residential zones, but there are important restrictions to be aware of:
- Size limitations: Detached ADUs are typically limited in square footage relative to the primary dwelling size.
- Owner occupancy: Castle Rock may require the property owner to occupy either the primary residence or the ADU.
- Setback requirements: ADUs must comply with specific setback rules from property lines, which vary by zone district.
- Design standards: The ADU must be architecturally compatible with the primary structure and surrounding neighborhood aesthetics.
- Utility connections: Separate utility meters and connections may be required depending on the ADU type.
Because Castle Rock's municipal code is regularly updated to reflect the town's growth, it is critical to work with a licensed ADU contractor familiar with local Castle Rock building permits and the Town's Community Development Department requirements.
Types of ADUs Built by Castle Rock Contractors
Skilled ADU builders in Castle Rock, CO can construct several types of accessory dwelling units depending on your property layout and goals:
- Detached ADUs: Standalone structures built in the backyard, separate from the main home.
- Attached ADUs: Units added to the side or rear of the existing home with a shared wall.
- Garage conversions: Converting an existing attached or detached garage into a livable space.
- Basement ADUs: Finishing or converting a basement into a self-contained living unit.
Why Hire a Local Castle Rock ADU Contractor?
Hiring a local ADU contractor in Castle Rock offers distinct advantages. Local professionals understand the Douglas County and Town of Castle Rock permitting processes, are familiar with HOA restrictions common in Castle Rock's many planned communities, and know the regional climate considerations — including snow load requirements and foundation needs specific to the Colorado Front Range. A knowledgeable contractor will manage everything from design and permitting to construction and final inspection, ensuring your ADU project is completed efficiently and in full compliance with all local regulations.