Home additions · Issaquah, WA
Second-Story Addition in Issaquah, WA
Build up to add bedrooms and baths while keeping your lot.
Second-Story Addition in Issaquah, WA
When Issaquah homeowners search for second-story addition or a dependable home additions contractor near them, they want craftsmanship that lasts and a crew that communicates. That's exactly what we do. Build up to add bedrooms and baths while keeping your lot.
Issaquah's Highlands and older in-town homes alike benefit from energy-smart upgrades and remodels that respect the surrounding terrain.
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 second-story addition
A typical second-story addition in Issaquah can involve roofline tie-in, framing, finishes, windows — 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 second-story addition cost in Issaquah?
Most second-story addition projects in Issaquah 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 Issaquah homeowners choose Xion Build
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
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 Issaquah home additions process
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.
Each phase is inspected and documented, and we keep you updated so you always know what's happening and what's next.
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.
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Issaquah.
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 Issaquah.
Do you offer free estimates for second-story addition near Issaquah?
Absolutely. We provide free, no-obligation in-home estimates throughout Issaquah and the greater Eastside, with transparent, itemized pricing.
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.
Related services in Issaquah
Mudroom & entry addition
Drop-zone mudrooms with lockers, benches, and storage.
View detailsStructural tie-in & roofline match
Marry new framing and rooflines cleanly to the existing home.
View detailsFoundation & footings for additions
Engineered footings and foundations for new square footage.
View detailsGreat room addition
A large open living and entertaining space.
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