Jenson General Contracting builds ADUs in Newberg, Oregon, including detached units, garage conversions & in-law suites. Key rules cover size limits, height, setbacks & lot coverage. All Oregon ADUs need a bathroom, kitchen & separate entrance.
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Straight Line Design and Remodeling LLC offers ADU design and build services in Portland, Oregon. Serving Beaverton, Tigard, Lake Oswego & Hillsboro since 2010, they build backyard cottages for rental income, multigenerational living & added property value.
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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.
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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.
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The Remodel Group is a Portland-based design-build firm specializing in ADU construction and whole house remodeling. Services include detached ADUs, garage conversions, and JADUs. Earth Advantage certified, they offer sustainable, budget-conscious builds.
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If you’ve been looking for a modern, stylish ADU for your backyard, you’ve come to the right place. Relevant Buildings is an ADU builder in the Portland, Oregon area. They build ADUs throughout Oregon and Washington. Their goal is to make your home building journey as easy as possible.
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The Powell Group is a Portland-area custom home and ADU builder led by Mitch Powell, with 20+ years of experience. They've completed 500+ homes and 30+ ADU projects, offering expert construction from planning to completion.
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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.
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Environs is a woman-owned design-build firm in Portland, Oregon, specializing in ADUs, home additions, remodels, and new construction. Licensed Oregon contractor (CCB 188377) with availability for projects breaking ground summer 2026.
read moreHillsboro, Oregon, is one of the fastest-growing cities in the Pacific Northwest, home to major tech employers like Intel and Nike's nearby campus. This rapid growth has created a significant demand for additional housing, making Accessory Dwelling Units (ADUs) an increasingly popular solution for homeowners. Whether you're looking to house family members, generate rental income, or increase your property value, working with experienced ADU contractors in Hillsboro, OR is essential to navigating the city's specific building requirements.
Before breaking ground, it's important to understand that Hillsboro operates under Washington County's land use regulations as well as its own municipal code. ADU contractors in Hillsboro must be well-versed in these local rules to ensure a smooth permitting process. Key regulations include:
Experienced ADU builders in Hillsboro, Oregon can construct several types of accessory dwelling units tailored to your property and budget. The most common options include:
Hiring a local ADU contractor in Hillsboro, OR offers distinct advantages over working with out-of-area builders. Local contractors have established relationships with the City of Hillsboro's Community Development Department, understand Washington County's permitting timelines, and are familiar with regional building materials suited to the Pacific Northwest's rainy climate. They can also help you take advantage of Oregon's SDC (System Development Charge) exemptions, which can significantly reduce upfront construction costs for qualifying ADU projects.
With Hillsboro's housing market continuing to grow alongside its thriving tech economy, now is an excellent time to invest in an ADU. Partnering with a qualified, licensed ADU contractor in Hillsboro, Oregon ensures your project meets all local codes, stays on budget, and delivers lasting value to your property. Request multiple quotes, verify contractor licenses through the Oregon Construction Contractors Board (CCB), and review past project portfolios before making your decision.