Prefab adu — Gresham, 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
A prefab ADU is built in a controlled factory setting and then transported to your property for installation. This approach can be faster than traditional on-site building and often involves less mess in your backyard. You should consider this if you prefer a streamlined process and a predictable timeline. Factors like site accessibility for delivery trucks typically influence the feasibility and total cost. Exact pricing confirmed free on the call.
Frequently asked in Gresham
What are the options for an accessory dwelling unit for rent in Gresham?
Can I build a detached accessory dwelling unit in Gresham?
What is a modular accessory dwelling unit in Gresham?
What ADU services are offered in Gresham?
How much does an accessory dwelling unit cost in Gresham?
What is the permit cost for an accessory dwelling unit in Gresham?
How do I find an ADU company in Gresham?
Also serving nearby: Portland · Vancouver · Beaverton · Hillsboro · Salem
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Gresham — population 110,685; about 4,706 residents per square mile across 23.5 sq mi. ZIP codes covered include 97030, 97080.
Neighborhoods served in Gresham: North Gresham, West Gresham, South Gresham, East Gresham, Rockwood — and every surrounding area.
Areas we serve
Browse by state, then city.