Backyard ADUs in Springfield, Oregon

Thinking about an ADU in Springfield? 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. Springfield’s post-WWII tract lots are typically 6,000–9,000 sq ft with detached garages already platted — owners routinely upgrade single-car garages to two-car with workshop space, and the city’s building department is known for consistent, predictable turnaround.

Building an ADU in Springfield

Springfield immediately east of Eugene on the Willamette River. Sits on the Willamette Valley floor with established neighborhoods and city-run permitting, so a project moves on a predictable timeline. Building permits here go through City of Springfield — 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, Springfield is known for Willamalane Park system and the Middle Fork Willamette River, and we tailor every build to fit the lot, the neighborhood, and how you actually live.

ADU Builder in Springfield: 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 Springfield 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 Springfield and make the whole path simple.

Springfield ADU questions