ADU Contractors in Oregon
Reborn Construction LLC
29030 Southwest Town Center Loop East, Medford, OR 97070
Reborn Construction LLC offers garage conversion and ADU services in Portland, OR. They handle permits, structural upgrades, and finish work for guest suites, rental units, and home offices across Portland, West Linn, Beaverton, and Gresham.
read more
Shelter Solutions ADU Builders
502 7th Street, Oregon City, OR 97045
Shelter Solutions is Portland's trusted ADU contractor since 1997, with 250+ completed projects. Specializing in detached ADUs, backyard cottages & in-law suites, they offer full design-build services, permit handling & expert guidance throughout Oregon.
read more
Level and Plumb Construction
Eugene, OR 97404
Level and Plumb Construction is Eugene's premier renovation team, transforming spaces into personalized oases with tailored designs, quality craftsmanship, and a thoughtful, client-focused approach.
read more
Kempf Construction LLC
2535 Prairie Road, Eugene, OR 97402
They coordinate with designers and architects, expertly handle all necessary City of Eugene and Lane County permitting requirements, and meticulously maintain a safe and tidy jobsite throughout the entire construction process.
read more
Jenson Contracting
19120 S Fernwood Rd, Molalla, OR 97038
Jenson Contracting builds ADUs in Beaverton, Oregon, including detached ADUs, garage conversions & in-law suites. They navigate local size, height, setback & lot coverage rules to ensure compliant, self-contained accessory dwelling units.
read more
Montgomery Builders
62988 Layton Avenue, Bend, OR 97701
Accessory Dwelling Units (ADUs) in Bend, Oregon are growing in popularity. Montgomery Builders specializes in garage conversions, detached ADUs & in-law suites, helping homeowners navigate Bend's updated ADU regulations efficiently.
read more
Integrity Timber Frame (ITF)
2455 Northwest Campus Drive, Estacada, OR 97023
Integrity Timber Frame offers custom prefabricated timber frame home, cabin, and ADU kits in South Dakota. Using their TruFit™ System and SIPs panels, they deliver strong, energy-efficient, sustainable structures with faster assembly and potential cost savings.
read more
BLD House
3853 Southwest 21st Street, Redmond, OR 97756
BLD House is a design-build ADU contractor offering fully in-house prefab accessory dwelling units. Their modular, off-site construction method ensures quality and cost efficiency. Starting at $299,000 for a 500 sq ft 1bed/1bath unit.
read more
JAM Concept Remodeling
918 Northeast Killingsworth Street, Portland, OR 97211
JAM Concept Remodeling is a Portland ADU contractor with 25+ years of experience in basement conversions, garage conversions, home additions, and residential remodeling, helping homeowners add functional living space and long-term property value.
read more
JRW Construction LLC
24121 South Peach Road, Canby, OR 97013
JRW Construction LLC offers full-service ADU construction, managing permits, inspections, and trade scheduling. They build detached ADUs, in-law suites, granny flats, garage conversions, and JADUs with quality finishes and energy-efficient systems.
read more
Tweto Architecture
Portland, OR 97212
Tweto Architecture specializes in ADU design, including detached ADUs, garage conversions & basement units. Serving Portland, Vancouver & Bend, they help homeowners add rental units, in-law suites & backyard cottages while navigating local zoning rules.
read more
Lamont Bros. Design & Construction
18675 Willamette Drive, West Linn, OR 97068
Lamont Bros. Design & Construction is a Portland, Oregon ADU contractor offering full design-build services. They help homeowners plan and build accessory dwelling units, including detached ADUs, garage conversions, and JADUs for rental income or flexible living.
read more
Suite Additions Portland
11825 Southwest Greenburg Road, Tigard, OR 97223
Suite Additions Portland specializes in ADU construction, garage conversions, home additions, and accessibility remodeling in the Portland metro area. Led by Tim Jorgens (CCB #201364), they offer full-service design, permitting, and build solutions.
read more
Verity Construction
46 North Front Street, Medford, OR 97501
Verity Construction LLC is a licensed ADU builder serving Medford and Southern Oregon. They offer custom homes, additions, remodels, and ADUs, with projects starting in as little as 4 weeks thanks to local permitting expertise.
read more
Sert Construction
1528 Southeast Holgate Boulevard, Portland, OR 97202
As a premier ADU contractor in Portland, Sert Construction specializes in designing and building high-quality, functional ADUs. Whether you're considering an added space for rental income, additional family space, or a home office, their team of experienced ADU builders ensures a seamless integration of these units into your existing property.
read more
Other cities in Oregon
What you need to know
ADU Contractors in Oregon: Navigating the State's Progressive Housing Laws
Oregon is a trailblazer when it comes to accessory dwelling unit (ADU) legislation. In 2017, Oregon passed House Bill 2007, which required cities with populations over 2,500 to allow ADUs in single-family residential zones. Then in 2019, Senate Bill 10 further pushed Oregon's housing reform by encouraging higher-density development statewide. These landmark laws make Oregon one of the most ADU-friendly states in the country, creating a thriving market for experienced ADU contractors in Oregon who understand the evolving regulatory landscape.
What Oregon ADU Contractors Need to Know About Local Regulations
While state law sets a baseline, individual cities and counties in Oregon maintain their own specific rules. Portland, Eugene, Bend, and Salem each have unique zoning codes, setback requirements, and permitting processes that ADU contractors must navigate carefully. For example, the City of Portland allows both attached and detached ADUs and has worked to reduce system development charges (SDCs) to encourage ADU construction. Skilled Oregon ADU contractors stay up to date with these local nuances to ensure every project moves forward without costly delays.
Types of ADUs Built by Oregon Contractors
Experienced ADU contractors in Oregon are well-versed in building a variety of unit types to suit different property configurations and homeowner needs. Common ADU types include:
- Detached ADUs: Standalone structures built in the backyard or elsewhere on the property
- Attached ADUs: Units connected to the primary residence, such as a converted garage or addition
- Interior ADUs: Basement conversions or attic transformations within the existing home
- Manufactured ADUs: Pre-built or modular units placed on the property
Key Considerations When Hiring an ADU Contractor in Oregon
Choosing the right ADU contractor in Oregon is critical to the success of your project. Oregon requires all general contractors to be licensed through the Oregon Construction Contractors Board (CCB). Homeowners should always verify a contractor's CCB license before signing any agreement. Beyond licensing, look for contractors with specific ADU experience, a strong portfolio of completed projects, and familiarity with Oregon's energy efficiency standards under the Oregon Residential Specialty Code (ORSC).
The Benefits of Building an ADU in Oregon
Building an ADU in Oregon offers significant advantages for homeowners. These include:
- Generating rental income to offset mortgage costs
- Providing multi-generational housing for aging parents or adult children
- Increasing overall property value
- Contributing to Oregon's solution for its ongoing housing shortage
With Oregon's supportive legislative environment and a growing network of qualified ADU contractors, now is an excellent time for Oregon homeowners to invest in accessory dwelling unit construction. Working with a licensed, experienced contractor ensures your ADU is built safely, legally, and to the highest standards.