Top Form Contracting offers expert ADU construction in Corvallis, Oregon. Services include design, new builds, garage conversions, and JADUs. Licensed, permit-compliant, and affordable — ideal for adding rental income or flexible living space.

Collins ADU Builders

2236 NE Alberta St, Portland, OR 97211

Licensed

Collins ADU Builders is a licensed Portland ADU contractor offering detached ADUs, garage conversions, JADUs, home additions & design services. Free consultations, transparent pricing, full permit coordination included.

Suite Additions Portland

11825 Southwest Greenburg Road, Tigard, OR 97223

Licensed Luxury Builds

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.

Central Oregon ADU

Bend, OR 97703

Licensed

WillisBuilt LLC (CCB#203478) is a licensed ADU builder specializing in accessory dwelling units. Led by Austin, they oversee every project from consultation to completion, ensuring quality construction and compliance with local building codes.

Pioneer ADU

6138 Inwood Lane South, Salem, OR 97306

Licensed 25 years in business Luxury Builds

Pioneer ADU is a Salem, Oregon-based family-owned ADU contractor with 25+ years of experience and 110+ completed projects. They build detached, attached, and conversion ADUs, managing design, permitting, and construction with transparent pricing.

Jason Allen Contracting, LLC

4804 Northeast 52nd Avenue, Portland, OR 97218

Jason Allen Contracting, LLC is a Portland-based contractor specializing in ADU construction, home additions, basement remodeling, kitchen and bathroom renovations, garage conversions, and master plan design services for homeowners.

Dweller Inc

Portland, OR 97204

Eco-Friendly

ADUs (Accessory Dwelling Units) are secondary housing units on residential properties. Popular in Oregon and California, they boost property value, generate rental income, and support multigenerational living. Financing options and local zoning rules apply.

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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What you need to know

Searching for top Attached ADU ADU Contractors in Oregon? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).

Working with a qualified Attached ADU ADU Contractor in Oregon ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Attached ADU professionals can guide you through every step.

Oregon homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Attached ADU experts featured here bring local expertise and proven experience to help make your project a success.

Browse our listings to find the best Attached ADU ADU Contractors in Oregon, and get started today.

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