Detached ADU near Hillsboro, OR

Jenson Contracting builds ADUs in Beaverton, Oregon, including detached ADUs, garage conversions & in-law suites. They navigate local size, height, setback & lot coverage rules to ensure compliant, self-contained accessory dwelling units.

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.

COOPER Design Build offers custom ADU construction in Portland, OR. With 30+ years of experience, they handle design, permitting, zoning, and full construction management for detached accessory dwelling units up to 800 sq ft.

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.

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.

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.

Exceptional Home Builders Salem is a licensed ADU contractor with 20+ years of experience. They build backyard cottages, garage conversions & basement apartments in Salem, handling design, permitting & construction.

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.

RTA Stone is a licensed remodeling contractor in Vancouver, WA, serving Washington & Oregon. Services include kitchen remodels, bathroom renovations, ADUs, additions & exteriors. Fixed-price quotes, 10-year warranty & dedicated project managers.

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.

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.

Adair Homes offers custom ADU builder solutions, including stand-alone and attached accessory dwelling units. With a six-step building process, financing via Basis Home Loans, and expert guidance, Adair simplifies new home and ADU construction.

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.

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.

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 property value.