Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
About this service
These are the professionals who manage the entire build, coordinating everything from structural framing to final electrical and plumbing inspections. You need a dedicated builder when you want a team to handle the complexities of construction so you don't have to manage multiple subcontractors yourself. We ensure that every phase of the project meets safety standards and quality expectations. Exact pricing confirmed free on the call.
Frequently asked in Beaverton
What is the process for an ADU quote in Beaverton?
Where can I find an accessory dwelling unit for rent in Beaverton?
What are accessory dwelling unit services?
What ADU companies are available in Beaverton?
What is a prefab ADU?
Can I get an ADU estimate for my property?
What are accessory dwelling units (ADUs)?
Accessory dwelling units, or ADUs, are secondary housing units on a single-family residential lot. They are self-contained living spaces, typically smaller than the main house, with their own kitchen, bathroom, and sleeping area. ADUs can be attached to the primary dwelling or be a separate structure, such as a backyard cottage or converted garage. They offer flexible housing solutions for various needs.
Also serving nearby: Hillsboro · Portland · Vancouver · Gresham · Salem
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Beaverton — population 96,945; about 4,935 residents per square mile across 19.6 sq mi. ZIP codes covered include 97003, 97005, 97006, 97007, 97008, 97075, 97076, 97077.
Neighborhoods served in Beaverton: Westlake, Raleigh Hills, Murrayhill, Progress — and every surrounding area.
Areas we serve
Browse by state, then city.
