ADU Builder Serving Marcola, OR
ADU Builder — built by Eugene’s garage & ADU master craftsman, serving Marcola since 1969.
Thinking about an ADU in Marcola? 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. Marcola sits in the Mohawk Valley where rural residential lots typically run 2–10 acres; Lane County’s rural land use rules allow substantial outbuildings when agriculture is the primary use, and many homeowners here build combination garage-barn structures that serve both hobby farming and vehicle storage.
Building an ADU in Marcola
Marcola sits 18 mi northeast of Eugene via Marcola Road. Is rural and largely unincorporated, which usually means county-level permitting, septic siting, and room for larger shops and outbuildings. 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, Marcola is known for the Mohawk River valley and Mohawk Valley Road, and we tailor every build to fit the lot, the neighborhood, and how you actually live.
ADU Builder in Marcola: 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 Marcola 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.
Marcolan ADU questions
Can I convert my garage into an ADU in Marcola?
Yes — converting an attached or detached garage into a livable ADU is one of the most cost-effective ways to add a rental unit or guest suite in Marcola. A garage-to-ADU conversion typically costs $50,000–$85,000 depending on the existing structure’s condition, desired finishes, and whether plumbing must be added. Red Umbrella specializes in garage conversions and handles permits, electrical, framing, insulation, and finish work under one contract.
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.
How much does it cost to build an ADU or addition, and can I finance it?
Construction costs range from roughly $50,000 for a garage conversion to $230,000 or more for a new detached ADU, depending on size and scope. Red Umbrella works with HFS Financial, which offers financing up to 120% of project cost to cover construction and some soft costs without requiring home equity. A free on-site estimate gives you the exact number before you apply for financing.
We also build these in Marcola.

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 Marcola
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 Marcola?
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