Last updated: September 24, 2026
What affects the price
Building an ADU is a custom project, so costs vary based on your specific choices. Site conditions are the biggest factor; if your land requires significant grading, utility extensions, or foundation work, those expenses add up quickly. Choosing high-end finishes, custom cabinetry, or complex roof lines will also push the budget higher compared to a standard design. Prefabricated units often offer predictable costs, while custom site-built structures allow for more flexibility but can be harder to estimate upfront. Exact pricing confirmed free on the call.
About this service
Frequently asked in Eugene
What are the disadvantages of ADUs in Eugene?
Disadvantages can include the upfront cost of construction and the potential impact on your yard space. You'll also need to consider how an ADU might affect your property taxes and utility bills. However, the long-term financial benefits and flexibility often outweigh these concerns.
How much does an ADU cost in Oregon?
The cost of an ADU in Oregon can vary significantly based on size, materials, and site complexity. Factors like foundation type, utility connections, and interior finishes play a large role in the final price. A personalized quote is essential for accuracy.
What are the rules for ADUs in Oregon?
Oregon has state-wide ADU laws that encourage their development, but local cities like Eugene also have specific regulations. These can cover aspects like lot coverage, setbacks, and parking requirements. The pros are well-versed in these local rules.
Is an ADU allowed in Eugene, OR?
Yes, ADUs are allowed and encouraged in Eugene. The city generally follows state guidelines to promote ADU construction, but specific requirements regarding size, placement, and parking must be met. The experts can help you understand these details.
What is the process for building an ADU in Eugene?
Can I get a grant for an ADU in Oregon?
While some states have specific ADU grant programs, Oregon's availability can be more localized and may change. It's best to ask the specialist you speak with about any current or potential incentives. They will have the most up-to-date information.
Also serving nearby: Salem · Bend · Beaverton · Hillsboro · Portland
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
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, College Hill, Whiteaker, Santa Clara — and every surrounding area.
Areas we serve
Browse by state, then city.
Alabama (4)
All of Alabama · Birmingham · Huntsville · Mobile · Montgomery
Alaska (1)
Arizona (9)
All of Arizona · Chandler · Gilbert · Glendale · Mesa · Peoria · Phoenix · Scottsdale · Tempe · Tucson
California (30)
All of California · Anaheim · Bakersfield · Chula Vista · Elk Grove · Fontana · Fremont · Fresno · Garden Grove · Glendale · Huntington Beach · Irvine · Lancaster · Long Beach · Los Angeles · Modesto · Moreno Valley · Oakland · Ontario · Oxnard · Palmdale · Rancho Cucamonga · Riverside · Sacramento · San Bernardino · San Diego · San Jose · Santa Ana · Santa Clarita · Santa Rosa · Stockton
Colorado (4)
All of Colorado · Aurora · Colorado Springs · Denver · Fort Collins
District of Columbia (1)
Florida (10)
All of Florida · Cape Coral · Fort Lauderdale · Hialeah · Jacksonville · Miami · Orlando · Port St. Lucie · St. Petersburg · Tallahassee · Tampa
Georgia (3)
All of Georgia · Atlanta · Augusta-Richmond County · Columbus
Hawaii (1)
Idaho (1)
Illinois (2)
Indiana (1)
Iowa (1)
Kansas (1)
Kentucky (2)
All of Kentucky · Lexington-Fayette · Louisville/Jefferson County
Louisiana (3)
Maryland (1)
Massachusetts (1)
Michigan (2)
Minnesota (2)
Missouri (3)
Nebraska (1)
Nevada (4)
All of Nevada · Henderson · Las Vegas · North Las Vegas · Reno
New Jersey (2)
New Mexico (1)
New York (3)
North Carolina (6)
All of North Carolina · Cary · Durham · Fayetteville · Greensboro · Raleigh · Winston-Salem
Ohio (3)
All of Ohio · Akron · Cincinnati · Toledo
Oklahoma (2)
Oregon (3)
All of Oregon · Eugene · Portland · Salem
Pennsylvania (2)
Rhode Island (1)
Tennessee (5)
All of Tennessee · Chattanooga · Clarksville · Knoxville · Memphis · Nashville-Davidson metropolitan government (balance)
Texas (17)
All of Texas · Arlington · Austin · Brownsville · Corpus Christi · Dallas · El Paso · Fort Worth · Frisco · Garland · Grand Prairie · Houston · Irving · Laredo · Lubbock · McKinney · Plano · San Antonio
Utah (1)
Virginia (5)
All of Virginia · Chesapeake · Newport News · Norfolk · Richmond · Virginia Beach
