Best accessory dwelling unit — 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
The best ADU is one that is built to last and fits perfectly into your existing property layout while meeting all local regulations. You need a high-quality unit if you are looking to increase your property value or create a comfortable long-term space for guests or tenants. We focus on durable construction and thoughtful layouts that maximize every square foot of your backyard. Exact pricing confirmed free on the call.
Frequently asked in Gresham
What should I have ready before an ADU company visits my Gresham property?
Before an ADU company visits your Gresham property, gather your property survey and any existing home plans. Having these documents ready helps the professionals assess your site more efficiently. They can quickly review lot dimensions, potential building locations, and utility access points. This preparation ensures a productive initial consultation. It allows them to provide more accurate information about what’s feasible for your ADU project. Call us to schedule your site assessment.
Can I get an ADU quote for construction in Gresham?
What is involved in accessory dwelling unit construction in Gresham?
Are prefabricated accessory dwelling units a good option for Gresham?
What types of ADU units are common in Gresham?
What are the rules for a detached accessory dwelling unit in Gresham?
How does ADU building work 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: Downtown Gresham, Hollydale, West Gresham, Northeast Gresham, South Gresham — and every surrounding area.
Areas we serve
Browse by state, then city.