Adu 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
Getting an ADU permit is the legal process of obtaining local government approval for your building project. You cannot legally construct or occupy an ADU without this documentation. You need this service before any construction begins to ensure your build meets building codes and safety regulations.
Frequently asked in Beaverton
What is the cost to build an accessory dwelling unit in Beaverton?
What are homes with mother-in-law suites like in Beaverton?
What is an emergency ADU, and do I need one in Beaverton?
What are the options for modular accessory dwelling units in Beaverton?
What is the accessory dwelling unit permit cost in Beaverton?
What makes an ADU the 'best' option for my property in Beaverton?
What is an accessory dwelling unit contractor in Beaverton?
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: West Hills, Raleigh Hills, Bonny Slope, North Bethany, Greenwood, Orenco — and every surrounding area.
Areas we serve
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