Accessory dwelling unit near me

Looking for accessory dwelling unit near me in Portland, OR? Call AccessoryDwellingUnit Services for a contact a provider — no obligation. Licensed adu builders serve Portland and the surrounding area, and you'll get straight answers on timing and what affects the price.

Last updated: September 24, 2026

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

Searching for an ADU near you helps you find companies that actively serve your specific neighborhood or county. Because building regulations change from one city to the next, working with a team that operates in your immediate area is essential for a smooth permit process. You need this when you are in the research phase and want to find a partner who has experience navigating your specific local municipal building department.

Frequently asked in Portland

What are the disadvantages of ADUs in Portland?

Potential drawbacks for ADUs in Portland can include the initial investment in construction and the time needed for permitting. There might also be neighborhood discussions. However, the benefits of increased rental income and property value are significant. We can help you assess these.

How much does an ADU cost in Oregon?

What are the rules for ADUs in Portland?

Portland has streamlined rules for ADUs, but there are still important considerations like lot size, setbacks, and parking requirements. Understanding these details is key to a successful project. The pros we work with are well-versed in Portland's ADU regulations. We can help you find that specialist.

Is an ADU allowed in my Portland neighborhood?

That grant is specific to California and doesn't apply to Oregon. While there might be financing options or local programs in Portland, there isn't a direct equivalent to that particular California initiative. We can explore available financing avenues for your project.

Can I build an ADU on a small lot in Portland?

Yes, Portland's ADU regulations are designed to allow ADUs on smaller lots, often with fewer restrictions than traditional home additions. However, minimum lot size and setback requirements still apply. The pros can assess your lot's potential.

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

All cities in Oregon →

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

Service area details

630,498residents

4,723per sq mile

8ZIP codes served

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: Hawthorne, Sellwood-Moreland, Alberta Arts District, Pearl District, Hollywood District, Kenton — and every surrounding area.