Adu company — 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.
About this service
An ADU company manages the transition from your initial concept to a finished, livable space. This involves design, permitting, and the actual construction work needed to get your project across the finish line. Choosing the right partner means finding a team that handles the technical complexities of zoning and utility infrastructure so you don't have to navigate those hurdles alone. Exact pricing confirmed free on the call.
Frequently asked in Hillsboro
What are the regulations for accessory dwelling units in Massachusetts?
Our expertise is focused on accessory dwelling units within our service areas, including Hillsboro, Oregon. We are not licensed or knowledgeable about the specific regulations governing accessory dwelling units in Massachusetts. For projects in that state, you would need to consult with local authorities and contractors familiar with Massachusetts' unique building codes and zoning laws.
Can you build an affordable ADU in Hillsboro?
What is a modular accessory dwelling unit in Hillsboro?
A modular accessory dwelling unit in Hillsboro is a secondary housing unit constructed off-site in a factory setting, then transported and assembled on your property. This method can offer advantages in terms of construction speed and consistent quality control. We can evaluate if this approach suits your ADU needs.
Can you help with emergency ADU services in Hillsboro?
While we don't offer specific 'emergency ADU' services, we understand the need for prompt project completion. We prioritize efficient scheduling and clear communication to ensure your ADU project in Hillsboro proceeds without unnecessary delays. Our goal is to deliver your completed ADU efficiently.
What does accessory dwelling unit mean in Hillsboro?
In Hillsboro, an accessory dwelling unit (ADU) refers to a secondary, independent living space on a lot with an existing single-family home. It is a self-contained dwelling unit, subject to local zoning ordinances and building codes. ADUs provide additional housing options on residential properties.
What is a local ADU in Hillsboro?
A local ADU in Hillsboro is an accessory dwelling unit constructed according to the specific zoning regulations and building codes established by the city of Hillsboro. It is a secondary housing unit built on a residential lot, providing independent living quarters. We specialize in building compliant local ADUs.
What is an accessory dwelling unit rental?
An accessory dwelling unit rental refers to the practice of leasing out a secondary housing unit (ADU) built on a residential property. These units provide independent living spaces that can generate rental income for homeowners. We construct ADUs that are suitable for rental purposes.
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: Downtown Hillsboro, Brookwood, Merlo, Shute Park, South Hillsboro — and every surrounding area.
Areas we serve
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