Room Additions & Suites in Dexter, OR
Home Additions — built by Eugene’s garage & ADU master craftsman, serving Dexter since 1969.
Thinking about a home addition in Dexter? A seamless addition adds the room you need without the cost and upheaval of moving — 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 a home addition 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 a home addition, that shapes how the new space ties into existing rooflines, the foundation, and the permit path.
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.
Home Additions in Dexter: what we build
We build room additions, primary suites, second stories, and bump-outs that match your home’s lines like they were always there.
- Room & multi-room additions
- Primary suites with spa baths
- Second stories, engineered & permitted
- Sunrooms, bump-outs & matched rooflines
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 home addition questions
How much does a home addition cost in Dexter, Oregon?
Home additions in Dexter typically range from $150 to $300 per square foot depending on complexity, finishes, and whether plumbing or electrical upgrades are needed. A 200-square-foot master bedroom addition might run $35,000–$65,000; a 400-square-foot family room with a bathroom runs $75,000–$130,000 or more. Red Umbrella provides a free on-site estimate so you have an accurate number before any design cost is incurred.
What is Oregon’s contractor lien notice requirement?
Under Oregon Revised Statutes Chapter 87, contractors must provide homeowners with an “Information Notice to Owner” before beginning work; this notice explains your rights if subcontractors or suppliers file liens for unpaid amounts. Red Umbrella provides this notice as part of the contract paperwork before any work begins. Understanding your lien rights protects you even if all payments to Red Umbrella are made on time.
What does “financing up to 120%” mean for a construction project?
Financing up to 120% of project cost means the loan can cover not only the construction contract amount but also an additional 20% to account for incidentals such as permits, system-development charges, landscaping after construction, or minor scope changes. This helps homeowners avoid out-of-pocket surprises during construction. HFS Financial, a lender partner of Red Umbrella, offers this type of product for qualifying borrowers.
We also build these in Dexter.
ADU Builder
A backyard ADU adds rental income, room for family, and lasting property value.
Learn more →
Garage Conversion
A garage conversion is the fastest, most affordable way to add finished living space.
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Custom Garage
A custom garage means covered parking, a real workshop, RV storage, or an apartment above.
Learn more →Home additions 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 a home addition 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