Home Additions in Alsea, Oregon

Thinking about a home addition in Alsea? A seamless addition adds the room you need without the cost and upheaval of moving — 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 home addition 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 home addition, that shapes how the new space ties into existing rooflines, the foundation, and the permit path.

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.

Home Additions in Alsea: what we build

We build room additions, primary suites, second stories, and bump-outs that match your home’s lines like they were always there.

• Room & multi-room additions
• Primary suites with spa baths
• Second stories, engineered & permitted
• Sunrooms, bump-outs & matched rooflines

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 home addition questions