Dunes City Garage-to-Living-Space Conversions
Garage Conversion — built by Eugene’s garage & ADU master craftsman, serving Dunes City since 1969.
Thinking about a garage conversion in Dunes City? A garage conversion is the fastest, most affordable way to add finished living space — and Red Umbrella has been building garages, ADUs, and additions across Lane County since 1969. Dunes City wraps around several coastal lakes and has strict shoreline development regulations — ADUs and garage additions must meet 100-ft riparian setbacks on lake-fronting lots, but interior parcels have more flexibility and the small city office processes permits quickly given the low application volume.
Building a garage conversion in Dunes City
Dunes City sits 60 mi west of Eugene on Highway 101 near Florence. Sits near the water, where shoreline setbacks and lakefront siting call for a builder who has navigated them before. Building permits here go through City of Dunes City — a process we know well — and for a garage conversion, that shapes insulation, egress, and whether the existing slab and walls can carry a full living space.
Locally, Dunes City is known for Woahink Lake, Siltcoos Lake, and the Oregon Dunes NRA border, and we tailor every build to fit the lot, the neighborhood, and how you actually live.
Garage Conversion in Dunes City: what we build
We build underused garages turned into bedrooms, offices, guest suites, gyms, or full garage-to-ADU units with a kitchen and bath.
- Bedroom, office, suite, gym or studio
- Full garage-to-ADU with kitchen & bath
- Insulation, egress, heat & electrical
- Faster & cheaper than building new
Why Dunes City 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 Dunes City and make the whole path simple.
Dunes City garage conversion questions
Is a garage conversion cheaper than building a new detached ADU?
Yes — converting an existing garage into an ADU is generally 40–60% cheaper than building a new detached ADU from the ground up because the structure, roof, and slab already exist. A garage conversion in Dunes City runs roughly $50,000–$85,000 compared to $130,000–$230,000 for a new detached unit. The trade-off is size: most garages convert to studios or one-bedrooms, while a new build can be designed larger.
What is the permit process for building an ADU or garage in Dunes City?
The Dunes City permit process begins with a pre-application review (optional but helpful), followed by submitting drawings and a permit application to City of Dunes City 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.
How do ADU rental returns compare to the cost of construction in Dunes City?
Dunes City 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 Dunes City market.
We also build these in Dunes City.

ADU Builder
A backyard ADU adds rental income, room for family, and lasting property value.
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Custom Garage
A custom garage means covered parking, a real workshop, RV storage, or an apartment above.
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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 garage conversion in Dunes City?
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