Attached ADU in Oregon
Catalyst Construction
825 Northeast 20th Avenue, Portland, OR 97232
At Catalyst, our Portland ADU Builders are experts in building homes, small homes, Casitas and Accessory Dwelling Units. Trust Catalyst Construction and Remodel to bring experience and high performance to build out your new attached or unattached ADU. We bring true potential, function and value.
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Sert Construction
1528 Southeast Holgate Boulevard, Portland, OR 97202
As a premier ADU contractor in Portland, Sert Construction specializes in designing and building high-quality, functional ADUs. Whether you're considering an added space for rental income, additional family space, or a home office, their team of experienced ADU builders ensures a seamless integration of these units into your existing property.
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Westside ADU Builders
1960 Northeast 25th Avenue, Beaverton, OR 97124
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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Highland Ridge Remodeling
414 South Beavercreek Road, Oregon City, OR 97045
Highland Ridge Remodeling helps Portland homeowners build accessory dwelling units (ADUs), including detached ADUs, garage conversions, and in-law suites. From design to permitting and construction, they deliver tailored, high-quality living spaces.
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Harka Architecture
7631 Northeast Glisan Street, Portland, OR 97213
Harka offers ADU design, consulting, and permitting services with 18+ years of experience. Services include feasibility reports from $785, zoning review, schematic design, construction documents, and energy modeling to reduce costs and carbon footprint.
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Jordan & Jordan Construction
300 Ash Street, Springfield, OR 97477
Jordan & Jordan Construction builds custom home additions in Eugene & Springfield, OR since 1991. Services include bedrooms, garages, sunrooms, second stories & ADUs. Licensed, bonded & insured (CCB#176193).
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Jack Barnes Architect
2502 Southeast Belmont Street, Portland, OR 97214
Jack Barnes Architect, PC is a licensed architectural firm in Portland, OR, specializing in residential design including ADUs, garage conversions, JADUs, and backyard cottages. Located on SE Belmont Street, they help clients navigate permitting and design.
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Suite Additions Portland
11825 Southwest Greenburg Road, Tigard, OR 97223
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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Kempf Construction LLC
2535 Prairie Road, Eugene, OR 97402
They coordinate with designers and architects, expertly handle all necessary City of Eugene and Lane County permitting requirements, and meticulously maintain a safe and tidy jobsite throughout the entire construction process.
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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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Central Oregon ADU
Bend, OR 97703
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.
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Nikao Construction
2526 Goff Place, Hillsboro, OR 97116
PSE Consulting Engineers Inc.
250 Main Street, Klamath Falls, OR 97601
ADUs boost property value, generate rental income, and support multi-generational living. From garage conversions to detached units, they offer flexible use. PSE Consulting Engineers Inc. helps navigate ADU permitting and design requirements.
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Sierra James Construction
747 Southeast Business Way, Bend, OR 97702
Sierra James Construction is Central Oregon's top ADU builder since 2017, offering custom & pre-approved ADU designs, garage conversions, attached units & green builds. Earth Advantage-certified specialists ensure quality, code-compliant construction.
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Pioneer ADU
6138 Inwood Lane South, Salem, OR 97306
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.
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Other cities in Oregon
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.