ADU Contractors in Oregon
Paulson Construction Inc.
Bend, OR 97701
Paulson Construction Inc., based in Bend, Oregon, offers full-service construction including custom homes, remodels, and ADUs. Services cover design, permitting, and build phases for detached ADUs, garage conversions, and in-law suites.
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Keyser Construction Inc
452 SW Alderwood Dr, West Linn, OR 97068
Keyser Construction Inc is a Portland, OR ADU contractor since 1996. They build detached cottages, garage conversions, basement & attic ADUs. Licensed, bonded & insured, offering free estimates and permit handling across the Portland metro area.
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Red Umbrella Services
254 Hardy Avenue, Eugene, OR 97404
Red Umbrella Home and Garage Contractors, a Google Guaranteed Partner in Eugene, Oregon, specializes in ADU design and construction. Services include site assessment, custom floor plans, permitting, and build completion with ongoing homeowner support.
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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.
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Stellar Construction & Remodeling
8500 Southeast 262nd Avenue, Gresham, OR 97080
Stellar Construction & Remodeling builds ADUs in Damascus, OR, managing permits, design, and construction for rental units, guest houses, or in-law suites. They handle detached and attached configurations, ensuring full code compliance and certificate of occupancy.
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Bend Craftsmen Company
674 Northeast Seward Avenue, Bend, OR 97701
Bend Craftsmen Company is a certified ADU contractor in Bend, Oregon, offering full-service accessory dwelling unit construction, including design, permits, and build management for granny flats, in-law suites, and backyard cottages.
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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.
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Cronen Building
8110 SE 45th Ave, Portland, OR 97204
Cronen Building Co. specializes in accessory dwelling units (ADUs), including granny flats, garage conversions, and backyard cottages. They guide homeowners through design and construction, delivering quality ADUs for rental income, in-law suites, or extra living space.
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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.
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Emmert International
11811 Southeast Highway 212, Clackamas, OR 97015
With over 50 years in residential & commercial construction, house lifting, and house moving - you can rest assured that your project will be handled with insight and care. At Emmert International, we’re here to make your ADU project a success. Give us a call today!
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Hammer & Hand
1011 Southeast Lincoln Street, Portland, OR 97214
Hammer & Hand builds Accessory Dwelling Units (ADUs) in Portland & Seattle. From garage conversions to detached cottages, they guide homeowners through zoning, permits, design, and costs for rental income or multigenerational living.
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Shelter Solutions
502 7th Street, Oregon City, OR 97045
Shelter Solutions, Portland's trusted ADU builder since 1997, has completed 250+ accessory dwelling units. Offering full design-build services—from permits to occupancy—they specialize in custom detached ADUs, backyard cottages, and in-law suites across the Portland Metro area.
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A-ply Construction
709 West Broadway, Eugene, OR 97402
A-ply Construction builds custom ADUs in Eugene and Springfield. Their 800 sq ft, 2-bed/1-bath design suits rental income, family housing, or Airbnb. Customizable finishes and appliances available.
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Cornerstone Builders Inc
7721 Southwest Cirrus Drive, Beaverton, OR 97008
Cornerstone Builders Inc offers full-service ADU construction, including custom design, utility connections, and interior finishes. Specializing in detached ADUs, garage conversions, and JADUs, they use energy-efficient materials for functional, livable spaces.
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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.
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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.