Accessory dwelling unit construction — Hillsboro, OR
Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
Frequently asked in Hillsboro
What is the best accessory dwelling unit for my property in Hillsboro?
What is the accessory dwelling unit permit process in Hillsboro?
The accessory dwelling unit permit process in Hillsboro, Oregon, involves submitting detailed architectural and site plans to the city for review. We manage this entire process, ensuring all documentation meets Hillsboro's zoning and building codes. This includes obtaining necessary approvals before construction begins. We ensure your project is compliant from start to finish. We navigate the complexities of permitting for you.
What accessory dwelling unit companies serve Hillsboro?
Do you offer accessory dwelling unit financing in Hillsboro?
While we don't directly offer financing in Hillsboro, Oregon, we can provide detailed project quotes that assist you in securing loans. We can also discuss common financing avenues homeowners utilize for ADU projects. Our goal is to help make your ADU construction feasible. We work with clients to understand their budget and provide accurate costings. We aim to support your financial planning for the build.
Where can I find accessory dwelling unit builders near me in Hillsboro?
What is ADU housing like in Hillsboro?
ADU housing in Hillsboro, Oregon, is designed to provide flexible living solutions while adhering to strict local zoning and building codes. These units can serve as rental income properties, accommodations for family members, or home offices. We ensure that every ADU we build is functional, aesthetically pleasing, and fully compliant with Hillsboro's regulations. Our focus is on creating valuable additions that enhance property utility. We tailor each ADU to the homeowner's specific needs.
What is involved in ADU construction in Hillsboro?
Also serving nearby: Beaverton · Portland · Vancouver · Gresham · Salem
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Hillsboro — population 107,730; about 4,168 residents per square mile across 25.8 sq mi. ZIP codes covered include 97123, 97124, 97129.
Neighborhoods served in Hillsboro: Orenco Station, Downtown Hillsboro, Brookwood, Walnut Creek, South Hillsboro — and every surrounding area.
Areas we serve
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