Alta Casa Remodeling is a Vancouver, WA ADU builder specializing in accessory dwelling units, garage conversions, in-law suites, and home additions. They also offer kitchen, bathroom, and full home remodels, backed by a one-year workmanship warranty.
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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.
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SQFT Studios, founded in 2015 by Architect Eli Green, is a Portland-based ADU builder specializing in detached ADUs, garage conversions, backyard cottages, and guest suites, with 10+ years of experience.
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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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JCS Construction LLC builds custom ADUs in Oregon, including detached backyard cottages, granny flats, garage conversions, basement conversions, and pole building ADUs. They handle both standard and non-traditional structures with quality craftsmanship.
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MyADU is a licensed ADU contractor in Vancouver, WA, specializing in custom accessory dwelling units across the Pacific Northwest. Founded in 2019, they offer design, permitting, and turnkey builds, completing most projects in 6–9 months.
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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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Roost Homes LLC is a Portland-based contractor specializing in ADU design and build, home additions, and remodels. They offer energy-efficient detached ADUs, garage conversions, and full renovations tailored to client needs across the Portland metro area.
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SLS Custom Homes and Remodeling is a licensed general contractor in Tigard, Oregon, serving Portland metro since 1983. Services include custom home building, kitchen and bathroom remodeling, room additions, and ADU construction.
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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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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 spaces in Portland, Oregon.
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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.
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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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For more than 15 years, we’ve turned backyards into beautifully crafted living spaces. From permits to finishing touches, our team knows every step inside and out. Choose the classic charm of our Traditional Series, the clean lines of our Modern Series or the efficiency and flexibility of our Urban Series. Build with the crew that wrote the ADU playbook: RG ProBuilders.
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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.
read moreOregon City holds a unique distinction as the first incorporated city west of the Rocky Mountains, and its rich historical character shapes how development — including Accessory Dwelling Units (ADUs) — is approached. Nestled along the Willamette River and home to the famous Municipal Elevator, Oregon City blends historic preservation requirements with modern housing needs. If you're looking for experienced ADU contractors in Oregon City, Oregon, understanding the local landscape is essential before breaking ground.
Oregon City falls under Clackamas County jurisdiction for some areas, but the city itself has its own planning and zoning codes. ADU development in Oregon City must comply with the Oregon City Development Code, which outlines specific rules for both attached and detached ADUs. Key regulations include:
Working with a licensed ADU contractor familiar with Oregon City's permitting process can save you significant time and money. The city's planning department requires building permits, and in some cases, design review approval before construction begins. A knowledgeable local contractor will understand how to navigate these steps efficiently, including coordinating with the Oregon City Public Works Department for utility connections and site development requirements.
Oregon City's varied topography — including hillside lots with dramatic elevation changes — influences the type of ADU that works best for a given property. Skilled ADU builders in Oregon City commonly construct:
With Oregon's statewide push to address housing shortages, ADUs in Oregon City represent a smart investment. They can generate rental income, provide multigenerational living options, or increase overall property value. Oregon state law (HB 2001) has also expanded ADU allowances statewide, giving homeowners more flexibility than ever. Partnering with a reputable, licensed and insured ADU contractor in Oregon City, OR ensures your project meets all local codes while maximizing your investment.