Drain ADU Builder
ADU Builder — built by Eugene’s garage & ADU master craftsman, serving Drain since 1969.
Thinking about an ADU in Drain? 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. Drain is eight miles west of I-5 on the OR-38 coast corridor, giving it a rural pace and a city permit process that moves at the same pace — smaller volume means less queue time than bigger-city offices.
Building an ADU in Drain
Drain sits 39 mi south-southwest of Eugene via I-5 & local roads. 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 Drain — 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, Drain is known for Elk Creek & Pass Creek confluence, OR-38 “Gateway to the Pacific” corridor, founded 1847, and we tailor every build to fit the lot, the neighborhood, and how you actually live.
ADU Builder in Drain: 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 Drain 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 Drain and make the whole path simple.
Drain ADU questions
What is an ADU and can I build one on my Drain property?
An ADU (accessory dwelling unit) is a second, self-contained home on the same lot as a primary residence, and most Drain residential lots are eligible to have one. Under current City of Drain rules there is no owner-occupancy requirement, so landlords and investors can build ADUs without living on site. Maximum size is 800 square feet or 10% of the lot area, whichever is smaller, and most properties need no additional parking space under current code. Red Umbrella offers free on-site consultations to confirm your lot’s specific eligibility.
How do I start a garage, ADU, or addition project with Red Umbrella?
The first step is a free on-site consultation with Bari Swartz, during which he evaluates your property, discusses your goals, and outlines realistic options and costs. From there, Red Umbrella prepares a detailed written estimate and, once agreed, handles design, permitting, and construction through final inspection. Call (541) 515-3843 or use the contact form on the website to schedule your free visit.
What is HFS Financial and how does it work for home improvements in Oregon?
HFS Financial is a lending marketplace specializing in home-improvement loans, and Red Umbrella is an approved contractor partner. HFS can finance projects up to 120% of the project cost — meaning closing costs and some associated expenses can be rolled in — with loan amounts up to $500,000 and without requiring home equity or a new first mortgage. Loan terms, rates, and approval requirements vary; Red Umbrella can connect you with an HFS representative after your free consultation.
We also build these in Drain.

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 Drain?
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