Custom Garage Builder in Harrisburg, Oregon
Custom Garage — built by Eugene’s garage & ADU master craftsman, serving Harrisburg since 1969.
Thinking about a custom garage in Harrisburg? A custom garage means covered parking, a real workshop, RV storage, or an apartment above — and Red Umbrella has been building garages, ADUs, and additions across Linn County since 1969. Harrisburg is the closest Linn County community to Eugene, so a garage or ADU here gets Willamette Valley farm-lot character with a short haul for our crew and materials.
Building a custom garage in Harrisburg
Harrisburg sits 14 mi north of Eugene via I-5. Is surrounded by working farmland where efu zoning and generous setbacks shape what — and where — you can build. Building permits here go through City of Harrisburg — a process we know well — and for a custom garage, that shapes the foundation, setbacks, and whether a detached shop or an attached garage fits the lot.
Locally, Harrisburg is known for Willamette River at River Mile 160, I-5 Exit 209, and we tailor every build to fit the lot, the neighborhood, and how you actually live.
Custom Garage in Harrisburg: what we build
We build detached and attached garages — 1 to 4 car, heated shops, tall RV bays, and garages with a finished apartment above.
- Detached & attached, 1–4 car
- Heated shops, RV bays & pole buildings
- Garage with an apartment or suite above
- Any roof style — gable, hip, gambrel, more
Why Harrisburg 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 Harrisburg and make the whole path simple.
Harrisburg custom garage questions
What types of garages does Red Umbrella build in Harrisburg?
Red Umbrella builds detached single-car, two-car, and three-car garages as well as attached garages and garage-with-workshop combinations throughout Lane, Linn, Benton, and Douglas counties. Every garage is designed to Harrisburg and county building codes with proper footings, framing, electrical rough-in, and your choice of door, siding, and roofing finishes. A free on-site consultation lets Bari Swartz assess your driveway, setbacks, and HOA requirements before design begins.
Can I build a garage or ADU without a permit in Harrisburg to save money?
Building without required permits is not advisable — unpermitted structures in Harrisburg can be subject to stop-work orders, fines, mandatory demolition, or expensive retroactive permitting when the property is sold. Lenders and title companies routinely flag unpermitted square footage during real estate transactions, making the property harder to sell or refinance. Red Umbrella only builds permitted structures; the cost of permitting is small relative to the risk of going without.
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 Harrisburg.

ADU Builder
A backyard ADU adds rental income, room for family, and lasting property value.
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Garage Conversion
A garage conversion is the fastest, most affordable way to add finished living space.
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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 a custom garage in Harrisburg?
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