Adu company — Portland, OR

Expanding your living space or creating a rental opportunity in Portland is easier than you think with an accessory dwelling unit. Portland has been a leader in ADU adoption, and licensed, insured pros are ready to help you build yours. They understand the city's innovative approach to housing and can guide you through the process, from initial design to final construction, whether you're in the Alberta Arts District or the Sellwood-Moreland neighborhood. The cost of an ADU depends on many factors, including its size, the materials you select, and the specifics of your lot, like whether it's sloped or has mature trees. Licensed, insured pros serve every neighborhood in Portland, bringing local knowledge and expertise to your project. They can help you maximize your property's potential and navigate any unique site challenges. Ready to explore the possibilities for your Portland home?

What affects the price

Building an ADU involves several moving parts that shape your total investment. The final figure depends heavily on whether you choose a prefab unit or a custom build from the ground up. Site conditions are another major factor; if your property requires extensive grading, utility trenching, or foundation work, costs will climb. You also have to consider your choice of finishes, like high-end appliances or custom cabinetry. Navigating local permit fees and impact assessments also adds to the total.

About this service

A professional company handles the heavy lifting, including architecture, engineering, permit submittals, and the actual construction labor. You need an experienced team when you want to ensure your unit is built to code, structurally sound, and completed on a predictable schedule. We act as your single point of contact, coordinating every trade and inspection so you aren't managing subcontractors yourself. We provide professional oversight from start to finish. Exact pricing confirmed free on the call.

Frequently asked in Portland

Also serving nearby: Vancouver · Beaverton · Gresham · Hillsboro · Salem

All cities in Oregon →

More on this: HUD ADU resources — ADU policy and financing research.

📞 (320) 313-0236 — Call Now for a Free Estimate

Service area details

Serving all of Portland — population 630,498; about 4,723 residents per square mile across 133.5 sq mi. ZIP codes covered include 97201, 97202, 97203, 97204, 97205, 97206, 97207, 97208.

Neighborhoods served in Portland: Alberta Arts District, Downtown Portland, Hawthorne District, Pearl District, Sellwood-Moreland — and every surrounding area.