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Adu services in Oregon

For Accessory Dwelling Unit (ADU) services in Oregon, we serve areas including Portland, Gresham, and Beaverton. Oregon's climate features mild, wet winters and dry summers, which impacts construction schedules and material choices. Our approach is designed to work within these seasonal considerations and the state's progressive ADU laws.

Choose your city

Oregon has been a leader in ADU development, with state-wide mandates that generally allow ADUs on most single-family lots. We navigate the specifics of local ordinances in cities like Portland, which may still have design review or neighborhood notification requirements. The state's climate, characterized by frequent rain and overcast skies, means we carefully plan construction timelines, especially for exterior work like foundation pouring and framing, to minimize weather delays. Material selection often favors durability against moisture and temperature fluctuations.

Our ADU services encompass the entire project, from initial design and architectural plans to engineering, permitting, and full construction. The most expensive parts of building an ADU in Oregon typically involve site preparation, foundation work, and the installation of plumbing and electrical systems. The complexity of these elements, along with the finishing touches, contributes significantly to the overall cost. Factors such as the size of the ADU and its proximity to existing utilities in areas like Beaverton will influence the expense. Contact us for a free phone quote to discuss your specific project needs.

Common questions

What does ADU stand for?

ADU stands for Accessory Dwelling Unit. It is a secondary housing unit located on a single-family residential lot. These can be attached to the main house or be a separate structure, providing additional living space in Oregon.

Are ADUs allowed in Oregon?

Yes, ADUs are allowed throughout Oregon due to state-wide legislation that permits them on most single-family lots. We help you navigate the specific local requirements in cities like Portland to ensure your ADU project complies with all regulations.

What is the most expensive part of building an ADU?

The most expensive components of building an ADU typically include the foundation, structural framing, and interior finishing. In Oregon, site preparation and utility connections can also be significant cost factors, depending on the property's location and existing infrastructure.

How much does it cost to build a 1200 sq ft ADU in California?

Our services are focused on Oregon. For California, you would need to consult providers within that state. We specialize in ADU construction and services within Oregon, including the Portland metro area.

How much to build a 900 sq ft ADU in Massachusetts?

We operate exclusively in Oregon. If you are looking for ADU services in Massachusetts, we recommend finding a specialized provider in that state. Our expertise is dedicated to the Oregon market.

What are the permitting quirks for ADUs in Oregon?

While Oregon has favorable state-wide ADU laws, local jurisdictions like Gresham may have specific design review or neighborhood notification processes. We manage these local nuances to ensure a smooth permitting experience for your ADU project.

Useful reference: HUD ADU resources — ADU policy and financing research.

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