Home additions · Sammamish, WA
Two-Story Great-Room Expansion in Sammamish, WA
Vaulted, two-story living additions with structural steel where needed.
Two-Story Great-Room Expansion in Sammamish, WA
Xion Build provides expert two-story great-room expansion in Sammamish. As a trusted Sammamish home additions contractor, we manage design, materials, permits, and every trade in-house so your project stays on schedule and on budget. Vaulted, two-story living additions with structural steel where needed.
Sammamish plateau homes are often large and family-focused, where additions, kitchens, and outdoor living spaces deliver the most lasting value.
A home addition lives or dies on the connection to the existing house — foundation, framing, and rooflines have to marry seamlessly so the new space feels original.
What's included in your two-story great-room expansion
A typical two-story great-room expansion in Sammamish can involve roofline tie-in, finishes, windows, framing — and we put the full scope in writing so you know exactly what's covered before work starts.
From room additions and bump-outs to second stories and full primary suites, we handle structural engineering and permits up front so there are no surprises.
How much does a two-story great-room expansion cost in Sammamish?
Most two-story great-room expansion projects in Sammamish fall between $142,000 – $414,500, depending on the size of the space, the finishes you choose, and the condition of what's already there.
Because every home is different, we don't quote final numbers sight unseen. After a free in-home consultation you get a detailed, itemized estimate tied to your actual home additions project — so there are no surprises later.
Why Sammamish homeowners choose Xion Build
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.
Transparent, written estimates with no hidden fees — you know what you're paying for before work begins.
Our Sammamish home additions process
Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.
Design and material selections come next, so finishes, fixtures, and pricing are locked in before demolition — no surprises mid-project.
It starts with a free, no-obligation consultation: what you want, the constraints, and a realistic budget range before you commit to anything.
Frequently asked questions
Do you offer free estimates for two-story great-room expansion near Sammamish?
Absolutely. We provide free, no-obligation in-home estimates throughout Sammamish and the greater Eastside, with transparent, itemized pricing.
How long does a two-story great-room expansion take?
Timelines depend on scope and permitting. Once the plan is confirmed we give you a realistic schedule and keep you updated as the home additions work progresses.
Are you a licensed home additions contractor?
Yes — Xion Build is licensed, bonded, and insured in WA. Every project is built to meet or exceed code and is backed by a written warranty.
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Sammamish.
How much does a two-story great-room expansion cost in Sammamish?
Most two-story great-room expansion projects in Sammamish run $142,000 – $414,500, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Sammamish price reflects the actual project — not a guess.
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