Accessory dwelling unit companies

Looking for accessory dwelling unit companies in Eugene, OR? Call AccessoryDwellingUnit Solutions for a contact a provider — no obligation. Licensed adu builders serve Eugene 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 budget. The biggest factor is whether you choose a prefabricated unit or a custom build on-site. Site preparation is also significant; if your land requires extensive grading, utility trenching, or foundation work, costs will climb. Your choice of finishes—like kitchen cabinetry, flooring, and siding materials—also shifts the bottom line. We help you navigate these variables to find a setup that fits your property. Exact pricing confirmed free on the call.

About this service

ADU companies offer end-to-end solutions, often handling everything from the first sketch to the final walk-through. You need these companies if you prefer a streamlined experience where one firm takes responsibility for design, permitting, and construction. They are ideal for homeowners who want to minimize the stress of managing multiple vendors and prefer a turnkey approach to adding a secondary residence to their property.

Frequently asked in Eugene

What are the disadvantages of ADUs in Oregon?

Potential disadvantages of ADUs in Oregon can include the initial construction investment, possible impacts on your yard, and the need to adhere to specific local zoning regulations in Eugene. You may also want to consider how an ADU could affect your property taxes and insurance. A professional can help you evaluate these aspects.

How much does an ADU cost in Oregon?

The cost of an ADU in Oregon varies widely based on size, design complexity, materials, and site conditions in Eugene. Simple, prefabricated units might be more affordable than custom-built homes. To get a precise understanding of the investment for your property, a personalized quote is necessary.

What are the rules for ADUs in Eugene?

Eugene has comprehensive zoning codes and development standards for accessory dwelling units, covering aspects like size, height, and placement. Understanding these local rules is critical for a successful ADU project. We can help you navigate these regulations to ensure compliance.

Is ADU allowed in Maryland?

ADU regulations are not uniform across the United States. While this service assists with ADUs in Eugene, Oregon, you would need to consult with local experts in Maryland regarding their specific rules. Each state and city has its own distinct requirements for building accessory dwelling units.

Funding and incentive programs for ADUs differ significantly by region. It's advisable to investigate any available grants or financial assistance programs within Oregon or Eugene that might support your ADU project.

Can I build an ADU that is detached from my main house in Eugene?

Yes, Eugene generally allows for detached accessory dwelling units, such as backyard cottages, provided they meet specific zoning requirements for setbacks, lot coverage, and access. The rules can vary, so it's important to confirm the specifics for your property. A professional can assess your site.

Also serving nearby: Salem · Bend · Beaverton · Hillsboro · Portland

All cities in Oregon →

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

Service area details

177,899residents

4,002per sq mile

7ZIP codes served

Serving all of Eugene — population 177,899; about 4,002 residents per square mile across 44.4 sq mi. ZIP codes covered include 97401, 97402, 97403, 97404, 97405, 97408, 97440.

Neighborhoods served in Eugene: South Hills, Willakenzie, Whiteaker, Goodpasture Island, West Eugene — and every surrounding area.