ADU Builder Serving Mapleton, OR

Thinking about an ADU in Mapleton? A backyard ADU adds rental income, room for family, and lasting property value — and Red Umbrella has been building garages, ADUs, and additions across Lane County since 1969. Mapleton is surrounded by commercial timberland and the lots in the community cluster along the Siuslaw River bottomland; high annual rainfall (65+ inches) means every garage or shop build here should prioritize roof pitch, overhangs, and moisture-barrier details that builders closer to Eugene sometimes underspec.

Building an ADU in Mapleton

Mapleton sits 38 mi west of Eugene on Highway 126 in the Coast Range. Follows a river corridor, so floodplain mapping and riparian setbacks are real factors we plan around from day one. Building permits here go through Lane County — 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, Mapleton is known for the Siuslaw River and Highway 36 corridor through dense Coast Range timber, and we tailor every build to fit the lot, the neighborhood, and how you actually live.

ADU Builder in Mapleton: 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 Mapleton 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 Lane County and make the whole path simple.

Mapleton ADU questions