Attached ADU in Oregon

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.

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... read more

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.

Triangle Bar Group understands that embarking on an ADU project can feel overwhelming, especially with so many options, decisions, and different Portland ADU builders to choose from. That’s where they come in.

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.

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 c... read more

Aim High ADU Solutions is a trusted ADU contractor in Hillsboro, OR, specializing in accessory dwelling unit construction. They offer expert planning, quality craftsmanship, and client-focused service to help homeowners expand their living space e... read more

Linnius Construction builds ADUs across Southern & Central Oregon, including Bend, Medford & Ashland. Specializing in detached ADUs, garage conversions & in-law suites, they help homeowners add value & flexible living space.

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.

Stellar Construction & Remodeling builds ADUs in Damascus, OR, managing permits, design, and construction for rental units, guest houses, or in-law suites. They handle detached and attached configurations, ensuring full code compliance and cer... read more

Brothers Lane Builders, LLC specializes in ADU (Accessory Dwelling Unit) construction for homeowners in Salem, Oregon. Whether you want a backyard cottage, in-law suite, or rental unit, our experienced team guides you through every step—from pla... read more

Pacific ADU is a trusted ADU contractor in Bend, Oregon, building high-quality accessory dwelling units. They manage permits, design, and construction, delivering durable, code-compliant ADUs that add long-term property value.

Portland ADU Design & Build is a licensed ADU contractor serving Portland & the Willamette Valley. Specializing in detached ADUs, garage conversions & basement ADUs, they manage design, permitting & construction for lasting propert... read more

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 an... read more

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.