ADU Builder Serving Winston, OR
ADU Builder — built by Eugene’s garage & ADU master craftsman, serving Winston since 1969.
Thinking about an ADU in Winston? A backyard ADU adds rental income, room for family, and lasting property value — and Red Umbrella has been building garages, ADUs, and additions across Douglas County since 1969. Winston is defined by Wildlife Safari, which draws regional traffic and has raised neighborhood property values steadily — an ADU here has genuine rental potential beyond just family use.
Building an ADU in Winston
Winston sits 80 mi south of Eugene via I-5. Sits in the Umpqua Valley with established neighborhoods and city-run permitting, so a project moves on a predictable timeline. Building permits here go through City of Winston — 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, Winston is known for Wildlife Safari (600-acre drive-through park, 4.5-mi loop), South Umpqua River, and we tailor every build to fit the lot, the neighborhood, and how you actually live.
ADU Builder in Winston: 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 Winston 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 Winston and make the whole path simple.
Winston ADU questions
Will an ADU increase my property taxes in Oregon?
In Oregon, adding an ADU triggers a reassessment only on the value added, not on the entire property, so your existing home’s assessed value is unaffected. The new ADU square footage is added to your tax roll, typically increasing property taxes by a few hundred dollars per year — far less than the rental income most Winston ADUs generate. Your Douglas County Assessor can provide an estimate once construction is complete.
What is the permit process for building an ADU or garage in Winston?
The Winston permit process begins with a pre-application review (optional but helpful), followed by submitting drawings and a permit application to City of Winston Development Services. Plan review typically takes 6–16 weeks for residential projects; once approved, a permit is issued and construction can begin with required inspections at key milestones. Red Umbrella manages the entire process — application, plan revisions, inspection scheduling, and final sign-off — as part of every project.
Can I finance Winston system-development charges for an ADU?
Yes — SDCs (which vary by city and county) can be financed through programs like HFS Financial rather than paid out of pocket at permit issuance. Including SDCs in your project loan keeps cash available for other needs and spreads the cost across the loan term. Red Umbrella will help you understand how SDCs fit into your overall project budget.
We also build these in Winston.

Garage Conversion
A garage conversion is the fastest, most affordable way to add finished living space.
Learn more →
Custom Garage
A custom garage means covered parking, a real workshop, RV storage, or an apartment above.
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 an ADU in Winston?
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