Dexter ADU Builder
ADU Builder — built by Eugene’s garage & ADU master craftsman, serving Dexter since 1969.
Thinking about an ADU in Dexter? 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. Dexter hugs the shoreline of Dexter Reservoir and many residential lots are within the flood hazard zone for the ACOE-managed reservoir — any ground-level garage addition requires a FEMA elevation certificate and potentially a no-rise certification before Lane County will issue a permit.
Building an ADU in Dexter
Dexter sits 18 mi southeast of Eugene on Highway 58. Sits near the water, where shoreline setbacks and lakefront siting call for a builder who has navigated them before. 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, Dexter is known for Dexter Reservoir and the Middle Fork Willamette River, and we tailor every build to fit the lot, the neighborhood, and how you actually live.
ADU Builder in Dexter: 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 Dexter 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.
Dexter ADU questions
What is a junior ADU (JADU) and can I build one in Dexter?
A junior ADU is an ADU created entirely within an existing single-family home — often a converted bedroom, basement, or attached garage — and is capped at 500 square feet in Oregon. JADUs are generally faster to permit and less expensive than full detached ADUs because they use the existing structure’s foundation, roof, and often its utility connections. Red Umbrella can assess whether your home’s existing footprint qualifies and design a JADU that meets Dexter code.
Can I build a garage or ADU without a permit in Dexter to save money?
Building without required permits is not advisable — unpermitted structures in Dexter 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.
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 Dexter.
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 Dexter
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 Dexter?
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