Accessory dwelling unit rental — 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
Using an ADU as a rental involves converting a space on your property into a legal unit you can lease to tenants. This provides a steady stream of passive income, but it requires compliance with local landlord-tenant laws and ADU-specific zoning rules regarding long-term or short-term rentals. You need this service when you want to maximize your property's financial potential. Costs depend on the level of interior finish and separate utility metering. Exact pricing confirmed free on the call.
Frequently asked in Hillsboro
What is the ADU cost in Hillsboro?
Are prefabricated accessory dwelling units a good option in Hillsboro?
What does accessory dwelling unit mean in Hillsboro?
In Hillsboro, an accessory dwelling unit (ADU) is a secondary housing unit on a single-family lot, offering independent living. It can be attached to the primary residence or be a detached structure, subject to the City of Hillsboro's specific zoning and building regulations. These units are designed for occupancy separate from the main home.
What affordable accessory dwelling unit options are available in Hillsboro?
What is involved in accessory dwelling unit construction in Hillsboro?
What are the benefits of a backyard accessory dwelling unit in Hillsboro?
A backyard accessory dwelling unit in Hillsboro offers increased property value, potential rental income, and space for multi-generational living. It provides a private, independent living space while remaining on the same lot as the primary residence, subject to Hillsboro's zoning regulations.
What is the cost to build an accessory dwelling unit 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: South Hillsboro, Northwest Hillsboro, Downtown Hillsboro, Orenco Station, Brookwood — and every surrounding area.
Areas we serve
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