ADU Contractors near Longmont, CO
Kindred Tiny Homes
1040 S Gaylord Ste, Denver, CO 80209
34.8 miles
Kindred Tiny Homes builds custom stick-built ADUs across Colorado. Studios from $98K, 1-bed to $220K, 2-bed to $287K. Earn $2K–$3K/month rental income, boost property value 20–40%. Full project management, transparent pricing, 12-month timelin... read more
Alex Home Pro
4851 S Lisbon Way, Aurora, CO 80015
41.8 miles
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.read more
Superior Construction & Home Renovations
9815 Eagle Creek Circle, Commerce City, CO 80022
24 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 t... read more
Studio Home by Studio Shed
1500 Cherry Street, Louisville, CO 80027
14.1 miles
Studio Home by Studio Shed offers custom & prefab ADUs across Texas, including San Antonio, Austin, Dallas & Houston. Units range from studios to full living spaces. Permit costs vary: Dallas $3K–$8K, Houston $2.5K–$7.5K.
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Mile High Construction
11012 Newark St., Commerce City, CO 80640
26.4 miles
Mile High Construction is a Denver Metro custom home builder with nearly 30 years of experience. Led by Jordan Barnett, they offer personalized design, sustainable building, and transparent communication, guiding clients from consultation to final... read more
Autotelic
5155 Central Park Boulevard, Denver, CO 80238
30.5 miles
Denver ADU design-build under one contract — zoning-first, fixed pricing, veteran-owned.
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Denver Dream Builders
2339 East 5th Avenue, Denver, CO 80206
30.4 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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Sustainable Design Build
99 Inca Street, Denver, CO 80223
31.6 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
ADU 5280
440 Pennsylvania Street, Denver, CO 80203
31.4 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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3R Services
10825 West 32nd Avenue, Wheat Ridge, CO 80033
27.9 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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North Hill by Toll Brothers
14133 Kearney Loop, Thornton, CO 80602
17.6 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 construc... read more
L&D Construction
Denver Metro, Denver, CO 80216
27.8 miles
Built on Trust. Designed for What's Next. We don't just build ADUs and homes, we help homeowners confidently navigate every step of the journey, from the first idea to the final walkthrough.
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DL Engineering Inc.
9100 West Jewell Avenue, Lakewood, CO 80232
33.6 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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Arch Design & Build
9800 Mount Pyramid Court, Englewood, CO 80112
45.4 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 ... read more
Prenvalley Builders
5180 Fox Street, Denver, CO 80216
27.8 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-efficie... read more
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What you need to know
ADU Contractors in Longmont, Colorado: Your Guide to Accessory Dwelling Units
If you're considering adding an accessory dwelling unit (ADU) to your property in Longmont, Colorado, you're making a smart investment. With Longmont's growing population and increasing housing demand along the Front Range, ADUs have become one of the most popular ways to maximize property value, generate rental income, or create space for multigenerational living. Finding the right ADU contractor in Longmont is the critical first step toward turning your vision into reality.
Why Build an ADU in Longmont, CO?
Longmont offers a unique blend of small-town charm and proximity to Boulder and Denver, making it a highly desirable place to live. The city has seen consistent growth, and rental demand remains strong. Building an ADU in Longmont allows homeowners to:
- Generate passive rental income in a competitive rental market
- House family members while maintaining privacy
- Increase overall property value significantly
- Contribute to Longmont's affordable housing solutions
- Utilize underused backyard or garage space efficiently
Longmont ADU Regulations and Zoning Requirements
Before breaking ground, it's essential to understand Longmont's ADU regulations. The City of Longmont permits ADUs in most residential zones, but there are specific rules that experienced ADU contractors in Longmont must navigate carefully. Key regulations include:
- Owner-occupancy requirements: In many zones, the property owner must occupy either the primary residence or the ADU.
- Size limitations: Detached ADUs are generally limited in square footage relative to the primary dwelling, typically not exceeding 1,000 square feet.
- Setback requirements: ADUs must comply with specific setback rules from property lines, which vary by zone designation.
- Parking requirements: Additional off-street parking may be required depending on the ADU type and location.
- Design standards: ADUs must be architecturally compatible with the primary structure and surrounding neighborhood.
A knowledgeable Longmont ADU contractor will be familiar with the city's permitting process through the Longmont Building and Safety Division, ensuring your project meets all local codes and avoids costly delays.
Types of ADUs Built in Longmont
Skilled ADU builders in Longmont, CO can construct several types of accessory dwelling units to suit your property and goals. The most common types include detached ADUs (standalone backyard cottages), attached ADUs (additions connected to the main home), garage conversions, and basement ADUs. Each type comes with its own set of construction considerations, costs, and permitting requirements.
Choosing the Right ADU Contractor in Longmont
When selecting an ADU contractor in Longmont, Colorado, look for professionals with proven local experience, proper licensing, and a strong portfolio of completed ADU projects in the area. The best contractors will guide you through design, permitting, construction, and final inspection — delivering a high-quality ADU that complies with all Longmont municipal codes and maximizes your investment.