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 potenti... read more
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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Westside ADU Builders is a licensed ADU contractor in Beaverton, OR, offering detached ADUs, attached ADUs, garage conversions, JADUs, and home additions. They manage design, permits, and construction from start to finish.
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Das Chapin Design specializes in ADU design, garage & basement conversions, and general contracting. Offering permit support, construction consultation, and full build services via ADU Design & Build, LLC, they create efficient, livable sp... read more
Gencon is a family-owned ADU contractor serving Clackamas County, OR. They build detached ADUs, garage conversions, in-law suites & JADUs. Full-service from design to move-in-ready finish.
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Kimball Construction offers ADU design & construction in Eugene, OR. Specializing in detached units, garage conversions, interior conversions & attached additions, they handle zoning, permits & builds for homeowners across the Northwes... read more
Tiny Mountain Houses, based in Silverton, Oregon, builds custom tiny house RVs certified to ANSI/NFPA 1192/1195 codes. Offering diverse floor plans and sizes, the BBB-accredited company serves full-time living, travel, or backyard cottage needs ac... read more
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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Build Forward is an ADU contractor helping homeowners add accessory dwelling units to boost property value, generate rental income, and create flexible living spaces like granny flats, in-law suites, or detached ADUs.
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Triangle Bar Group is a Portland, Oregon design-build contractor specializing in custom homes, additions, remodels, and ADUs. They manage design, permitting, and construction under one roof, serving Portland and Vancouver, WA homeowners.
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Aforma Design Studio offers white-label architectural design, rendering, and preconstruction services for builders, developers, and homeowners across the US, including ADUs, renovations, and new construction, delivered under your brand.
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If you’ve been looking for a modern, stylish ADU for your backyard, you’ve come to the right place. Relevant Buildings is an ADU builder in the Portland, Oregon area. They build ADUs throughout Oregon and Washington. Their goal is to make your... read more
NW Tiny Homes (Portland, OR) builds ANSI-certified park model RV tiny homes starting at $49,900, delivered in 8-14 weeks. A faster, affordable alternative to traditional ADUs, with eight customizable floor plans, financing options, and in-house wa... read more
Backyard Blueprint is a Portland, OR family-owned ADU contractor with 20+ years of experience. Services include detached ADUs, garage conversions, and remodels. They offer 15+ floor plans and custom designs, managing permits to completion in 4–6... read more
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 moreOregon 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.
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.
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:
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).
Building an ADU in Oregon offers significant advantages for homeowners. These include:
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.