Home additions · Sammamish, WA
Primary Suite Addition in Sammamish, WA
A new primary bedroom, bath, and closet wing.
Primary Suite Addition in Sammamish, WA
Looking for primary suite addition in Sammamish? Xion Build is a licensed, bonded, and insured home additions contractor delivering standout results for Sammamish homeowners — start to finish, under one roof. A new primary bedroom, bath, and closet wing.
Sammamish plateau homes are often large and family-focused, where additions, kitchens, and outdoor living spaces deliver the most lasting value.
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.
What's included in your primary suite addition
A typical primary suite addition in Sammamish can involve insulation, finishes, framing, foundation work — and we put the full scope in writing so you know exactly what's covered before work starts.
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.
How much does a primary suite addition cost in Sammamish?
Most primary suite addition projects in Sammamish fall between $103,500 – $345,000, 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
Honest guidance on where to invest and where to save, so your budget goes toward what adds real, lasting value.
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
Licensed, bonded, and insured in Washington — every project is built to meet or exceed code and backed by a written warranty.
Our Sammamish home additions process
We pull the permits, schedule every trade in the right order, and protect your home, landscaping, and daily routine throughout the build.
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
What should we decide before starting a primary suite addition?
Your budget range, must-haves, timeline, and any finishes you already love. For home additions work we also review access, existing conditions, and whether permits are required in Sammamish.
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.
Do you offer free estimates for primary suite addition near Sammamish?
Absolutely. We provide free, no-obligation in-home estimates throughout Sammamish and the greater Eastside, with transparent, itemized pricing.
Do you offer a primary suite addition in Sammamish, WA?
Yes. A new primary bedroom, bath, and closet wing. Xion Build is a licensed, bonded, and insured home additions contractor serving Sammamish and the surrounding WA communities.
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.
Related services in Sammamish
Bump-out addition
Small cantilevered bump-outs to expand kitchens, baths, or dining.
View detailsDining room expansion
Expand or add a formal dining space for gatherings.
View detailsAddition design & engineering
Architectural plans and structural engineering for additions.
View detailsTwo-story great-room expansion
Vaulted, two-story living additions with structural steel where needed.
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