Accessory dwelling unit permit — Beaverton, OR
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
An accessory dwelling unit permit is the required authorization from your local planning department to build on your lot. This paperwork confirms your plans follow zoning rules and structural safety standards. You need this service if you are in the planning stages of your backyard project.
Frequently asked in Beaverton
Are prefabricated accessory dwelling units a good option for Beaverton?
Where can I find an ADU builder in Beaverton?
What makes the best ADU in Beaverton?
What's the process for an ADU permit in Beaverton?
Who is an accessory dwelling unit contractor in Beaverton?
How do I get an ADU quote in Beaverton?
To get an ADU quote in Beaverton, Oregon, simply call us. We will arrange for a licensed, insured pro to visit your property. They will provide a detailed estimate based on your specific requirements and site conditions. This quote is completely free and carries no obligation. It's the most direct way to understand the investment for your ADU project in Beaverton.
What is a backyard accessory dwelling unit?
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: The Glencoe, The Woods, Progress, Bonny Slope, Raleigh Hills — and every surrounding area.
Areas we serve
Browse by state, then city.