ADU Contractors in Oregon
Valley ADU Company
436 West Antler Avenue, Redmond, OR 97756
Trusted ADU contractor in Redmond, OR, specializing in accessory dwelling units, granny flats, and detached ADUs. Expert knowledge of local zoning, building codes, and permitting ensures quality construction, reliable timelines, and smooth project delivery.
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Neil Kelly Portland
804 North Alberta Street, Portland, OR 97217
Neil Kelly Portland offers full ADU design and build services, including detached units, garage conversions, and basement conversions. They handle zoning, permits, and custom design for functional, energy-efficient accessory dwelling units.
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Boss PDX
252 A Avenue, Lake Oswego, OR 97034
With over 17 years of construction experience in the Portland metro area, Boss PDF helps clients turn underused space—like garages, basements, and backyards—into fully livable dwellings that add long-term value.
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EcoCraft LLC
4408 NE 38th Ave, Portland, OR 97211
EcoCraft LLC designs & builds custom ADUs in Portland, OR, including detached ADUs, garage conversions & in-law suites. Serving Beaverton, Tigard & Vancouver, WA. Projects range from $150K–$350K. Full permitting support included.
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Bryan Parsons Construction
Cottage Grove, OR 97424
Bryan Parsons Construction builds custom ADUs in Eugene, Oregon. Services include backyard cottages, garage conversions, and detached ADUs with ADA features. Licensed Oregon contractor (CCB# 250363) focused on quality, integrity, and style.
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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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Born and Raised Construction
2020 Southeast Bush Street, Portland, OR 97202
Born and Raised Construction builds ADUs in Portland, including detached units, garage conversions, backyard cottages & in-law suites. Benefits include rental income, aging in place & increased property value.
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ADU PDX
2325 NE 19th Ave, Portland, OR 97212
ADU-PDX is a Portland-based ADU builder with 30+ years of experience. They specialize in garage conversions, detached ADUs, granny flats & in-law suites, handling permits and zoning for hassle-free builds across the Portland metro area.
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Conrad Construction LLC
5325 Northeast 109th Avenue, Portland, OR 97220
Conrad Construction is Portland's trusted ADU builder with 20+ years of experience. Specializing in backyard cottages, garage conversions, granny flats & detached ADUs, they handle permits, design & construction to boost property value.
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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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TaylorSmith Sustainable Construction
6324 Northeast Davis Street, Portland, OR 97213
TaylorSmith Sustainable Construction is a Portland, Oregon contractor specializing in sustainable new homes, renovations, energy retrofits, and ADU construction. All new builds target DOE Net Zero Energy Ready certification.
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RP Construction Custom Homes
6138 Inwood Ln S, Salem, OR 97306
RP Construction is a family-owned custom home builder in Salem, Oregon, with 20+ years of experience and 110+ satisfied clients. They offer transparent pricing, clear communication, and quality craftsmanship from design to move-in.
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Brahms Construction LLC
255 Thor Place, Junction City, OR 97448
Brahms Construction LLC is a licensed ADU builder specializing in in-law suites, granny flats, rental units, and home offices. They handle design, permitting, and construction while respecting budgets and local ADU regulations.
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CP Contracting Inc
4091 West 11th Avenue, Eugene, OR 97402
CP Contracting Inc is a Eugene-based ADU contractor offering full-service accessory dwelling unit construction. Services include site evaluation, design, permitting, construction, and interior finishing for detached ADUs, garage conversions, and in-law suites.
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The Powell Group
118 Northwest King Avenue, Portland, OR 97210
The Powell Group is a Portland-area custom home and ADU builder led by Mitch Powell, with 20+ years of experience. They've completed 500+ homes and 30+ ADU projects, offering expert construction from planning to completion.
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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.