Attached ADU near Newberg, OR

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.

With over 50 years in residential & commercial construction, house lifting, and house moving - you can rest assured that your project will be handled with insight and care. At Emmert International, we’re here to make your ADU project a success. Give us a call today!

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 efficiently.

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.

DeMarco Builders is a licensed general contractor since 1996, offering residential and commercial construction, custom homes, ADUs, remodels, and additions. Using critical path management, they deliver projects faster while maintaining quality.

Conrad Construction is Portland's trusted ADU builder with 20+ years of experience. Specializing in backyard cottages, garage conversions, granny flats & detached ADUs, they handle permits, design & construction to boost property value.

Accessory Dwelling Units are a great way for Mississippi Avenue homeowners to make the most of their property. Whether you need extra space for family, a home office, or a way to generate rental income, our team at Home Services Plus handles everything—from permits to finishing touches.

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.

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.

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.

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.

JDI Construction is a Portland-based ADU contractor offering full design-build services for detached, attached, garage conversion, basement, above-garage, and interior ADUs, including permits and eco-friendly practices.

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.

Arciform is a Portland-based ADU design/build firm specializing in accessory dwelling units, including garage conversions, detached ADUs & in-law suites. They handle permits, historic properties & full construction.