ADU Builder Serving Philomath, OR

Thinking about an ADU in Philomath? A backyard ADU adds rental income, room for family, and lasting property value — and Red Umbrella has been building garages, ADUs, and additions across Benton County since 1969. Philomath’s position at the foot of the Coast Range means lots on the west side of town carry steeper grades, making garage siting and drainage planning more involved than on the valley floor.

Building an ADU in Philomath

Philomath sits 53 mi north-northwest of Eugene via I-5 & US-20. Blends established suburban lots with larger parcels on its edges — a familiar mix for siting a new build. Building permits here go through City of Philomath — a process we know well — and for an ADU, that shapes how utilities connect and whether a detached cottage or an attached unit fits best.

Locally, Philomath is known for Marys Peak (4,097 ft, highest point in the Oregon Coast Range), Marys River Park, Philomath Frolic & Rodeo, and we tailor every build to fit the lot, the neighborhood, and how you actually live.

ADU Builder in Philomath: what we build

We build detached backyard cottages, attached units, and ADUs above or beside a garage — designed, permitted, and built end to end.

• Detached & attached ADUs, 400–900+ sq ft
• Garage-to-ADU conversions (our specialty)
• Permits, utilities & site work handled
• Up to 120% financing — cash-flows as a rental

Why Philomath 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 City of Philomath and make the whole path simple.

Philomath ADU questions