Home additions · Bainbridge Island, WA
Second-Story Addition in Bainbridge Island, WA
Build up to add bedrooms and baths while keeping your lot.
Second-Story Addition in Bainbridge Island, WA
Xion Build provides expert second-story addition in Bainbridge Island. As a trusted Bainbridge Island home additions contractor, we manage design, materials, permits, and every trade in-house so your project stays on schedule and on budget. Build up to add bedrooms and baths while keeping your lot.
Bainbridge Island's wooded waterfront properties reward weather-tight envelopes, refined finishes, and crews who plan around ferry logistics and island access.
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 second-story addition
A typical second-story addition in Bainbridge Island can involve framing, foundation work, insulation, finishes — 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 second-story addition cost in Bainbridge Island?
Most second-story addition projects in Bainbridge Island fall between $172,500 – $460,000, 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 Bainbridge Island homeowners choose Xion Build
Honest guidance on where to invest and where to save, so your budget goes toward what adds real, lasting value.
Meticulous job sites and clear daily communication, with respect for your home, your time, and your neighbors.
One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.
Our Bainbridge Island 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.
Each phase is inspected and documented, and we keep you updated so you always know what's happening and what's next.
Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.
Frequently asked questions
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.
How much does a second-story addition cost in Bainbridge Island?
Most second-story addition projects in Bainbridge Island run $172,500 – $460,000, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Bainbridge Island price reflects the actual project — not a guess.
How long does a second-story addition 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.
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Bainbridge Island.
What should we decide before starting a second-story 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 Bainbridge Island.
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