ADU Contractors near Longmont, CO
TinyMod
8150 Gray Fox Dr, Evergreen, CO 80439
38.1 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 t... read more
Studio Shed
1500 Cherry Street, Louisville, CO 80027
14.1 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
Zelenka Development
1660 South Albion Street, Denver, CO 80222
34.4 miles
Zelenka Development is a licensed ADU builder and custom home contractor in the Denver metro area, offering ADU construction, garage conversions, renovations, and integrated design services with full permitting support.
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Rescue Restoration & Construction
1415 Park Avenue West, Denver, CO 80205
29 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
A2Z Builders
501 South Lipan Street, Denver, CO 80223
32.2 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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Murphey's Hammer LLC
Greenwood Village, CO 80112
40.1 miles
Murphey's Hammer is a Denver-based contractor specializing in ADUs, home additions, garage builds & outdoor living spaces. Serving Denver Metro, Aurora, Littleton & more with personalized, quality craftsmanship.
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Henze Construction
Parker, CO 80138
48.3 miles
Henze Construction builds custom tiny homes and ADUs, including detached units, backyard cottages, and granny flats. Their 240 sq ft Architectural Tiny Home featured spruce wood, oak countertops, and propane systems. Custom builds available.
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NAGY Design
2255 Sheridan Blvd. Unit C270, Edgewater, CO 80214
29 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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WestIron Construction
8060 Meade Street, Superior, CO 80031
22.8 miles
ADU Home Tour
6825 Eaton Street, Arvada, CO 80003
22.1 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
L&D Construction
5151 Bannock Street, Denver, CO 80216
26.9 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-comp... read more
Denver Custom ADU
10790 West 50th Avenue, Wheat Ridge, CO 80033
26.4 miles
Denver Custom ADU is a trusted ADU builder in Denver with 30+ years of experience. Led by Matt Brinn, they offer fixed pricing, monthly billing, proactive permitting, and commercial-grade standards for every residential ADU project.
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F9 Productions Inc.
825 Crisman Dr #100, Longmont, CO CO 80501
2.2 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.<... read more
Building While Giving
2859 South Locust Street, Denver, CO 80222
36.2 miles
Original Roots Design + Build
383 Corona Street, Denver, CO 80218
31.6 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 s... 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.