ADU Builder Serving Coburg, OR
ADU Builder — built by Eugene’s garage & ADU master craftsman, serving Coburg since 1969.
Thinking about an ADU in Coburg? 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. Coburg is one of Oregon’s smallest incorporated cities and its historic village feel means the planning commission takes an active interest in new construction aesthetics — garage additions that match original home materials and roofline pitch sail through; modern metal-clad shops require more dialogue.
Building an ADU in Coburg
Coburg sits 8 mi north of Eugene on I-5. Has historic-character streets where design and materials matter, so a build has to fit the period without faking it. Building permits here go through City of Coburg — 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, Coburg is known for Coburg Road antique corridor and the McKenzie River confluence with the Willamette, and we tailor every build to fit the lot, the neighborhood, and how you actually live.
ADU Builder in Coburg: 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 Coburg 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 Coburg and make the whole path simple.
Coburg 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 Coburg ADUs generate. Your Lane County Assessor can provide an estimate once construction is complete.
What is the timeline from consultation to permit approval for an ADU in Coburg?
After your free consultation and once Red Umbrella prepares drawings (typically 2–4 weeks), the permit application is submitted to City of Coburg Development Services, where plan review takes approximately 6–16 weeks for residential projects depending on current workload. Total time from first call to permit-in-hand is usually 3–5 months. Red Umbrella tracks your application status and responds promptly to any reviewer comments to minimize delays.
How do ADU rental returns compare to the cost of construction in Coburg?
Coburg arean ADUs commonly rent for $1,200–$2,000 per month depending on size, location, and finishes, which can generate $14,000–$24,000 per year in gross rental income. At those rates, a $60,000 garage-conversion ADU can recoup its full cost within 3–5 years in rental income alone. Red Umbrella does not guarantee rental rates, but can connect you with local property managers who know the Coburg market.
We also build these in Coburg.

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 →ADUs near Coburg
We build throughout Lane County — here are nearby towns we also serve:
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 Coburg?
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