Custom Garages in Alsea, OR
Custom Garage — built by Eugene’s garage & ADU master craftsman, serving Alsea since 1969.
Thinking about a custom garage in Alsea? A custom garage means covered parking, a real workshop, RV storage, or an apartment above — and Red Umbrella has been building garages, ADUs, and additions across Benton County since 1969. Alsea sits in one of Benton County’s most remote valleys, which means contractor lead times and material deliveries require planning a week or two further out than typical — we account for that upfront.
Building a custom garage in Alsea
Alsea sits 47 mi northwest of Eugene via OR-34. Follows a river corridor, so floodplain mapping and riparian setbacks are real factors we plan around from day one. Building permits here go through Benton County — a process we know well — and for a custom garage, that shapes the foundation, setbacks, and whether a detached shop or an attached garage fits the lot.
Locally, Alsea is known for Alsea River (premier steelhead fishery), Hayden Covered Bridge, OR-34, Alsea Charter School K–12, and we tailor every build to fit the lot, the neighborhood, and how you actually live.
Custom Garage in Alsea: what we build
We build detached and attached garages — 1 to 4 car, heated shops, tall RV bays, and garages with a finished apartment above.
- Detached & attached, 1–4 car
- Heated shops, RV bays & pole buildings
- Garage with an apartment or suite above
- Any roof style — gable, hip, gambrel, more
Why Alsea homeowners choose Red Umbrella
- Garages and ADUs under one roof — the rare shop that masters both, so a garage-with-a-suite is one project, one crew.
- Master Electrician in-house — owner Bari Swartz wires it himself, to code, no waiting on a sub.
- Building since 1969 — you work directly with Bari, not a sales rep or a rotating cast of subs.
- Permits handled & up to 120% financing — we know Benton County and make the whole path simple.
Alsea custom garage questions
How much does a new detached garage cost in Alsea, Oregon?
A new detached two-car garage in Alsea generally runs $35,000–$75,000 depending on size, foundation type, electrical service, and finish level. A simple one-car slab garage sits at the lower end; a finished, insulated two-car with sub-panel and workshop space sits at the higher end. Red Umbrella provides a free itemized estimate after visiting your property.
What permits are required for a garage conversion to ADU in Alsea?
A garage-to-ADU conversion in Alsea requires at minimum a building permit for change of occupancy and structural work, an electrical permit for new or upgraded circuits, and a plumbing permit for kitchen and bathroom rough-in. If a new utility connection or sub-meter is added, additional EWEB or City permits may apply. Red Umbrella prepares and submits all permit applications as part of the standard project scope.
Does Red Umbrella require a large deposit upfront?
Red Umbrella’s payment schedule is outlined in the written contract before work begins, typically structured around project milestones rather than a single large upfront payment. Oregon law limits contractor deposits on residential projects, and Red Umbrella follows those rules. Your contract will show exactly when each payment is due relative to construction progress.
We also build these in Alsea.

ADU Builder
A backyard ADU adds rental income, room for family, and lasting property value.
Learn more →
Garage Conversion
A garage conversion is the fastest, most affordable way to add finished living space.
Learn more →
Home Additions
A seamless addition adds the room you need without the cost and upheaval of moving.
Learn more →Trusted across the valley.
"Bari built us a fine, 600 sq ft cottage (ADU) in our back yard. Helpful from start to finish through the permit process."
"Our garage was crushed by a tree in the ice storm. Red Umbrella, garage specialists, were perfect for the job."
"Bari at Red Umbrella is a solid contractor! We hired him to remodel our garage in College Hill, and it became a special place to live and enjoy."
Planning a custom garage in Alsea?
Bari will look at your lot and give you an honest number — permits handled, up to 120% financing, usually a reply within one business day.
Get My Free Estimate → Call (541) 515-3843