ADUs & conversions · Newcastle, WA
Attached ADU Build in Newcastle, WA
Attached accessory dwelling units within the home's footprint.
Attached ADU Build in Newcastle, WA
Looking for attached ADU build in Newcastle? Xion Build is a licensed, bonded, and insured adus & conversions contractor delivering standout results for Newcastle homeowners — start to finish, under one roof. Attached accessory dwelling units within the home's footprint.
Newcastle's view homes and golf-community properties reward precise finish carpentry and remodels designed to make the most of the outlook.
You get a single point of contact, licensed and insured trades, and clear communication from the first sketch to the final walkthrough.
What's included in your attached ADU build
A typical attached ADU build in Newcastle can involve permits, finishes, the kitchen and bath, foundation — and we put the full scope in writing so you know exactly what's covered before work starts.
We write scope in plain terms: what we'll do, the materials, the sequence, and how any surprises are handled if something is uncovered.
How much does an attached ADU build cost in Newcastle?
Most attached ADU build projects in Newcastle fall between $174,000 – $522,500, 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 adus & conversions project — so there are no surprises later.
Why Newcastle homeowners choose Xion Build
Meticulous job sites and clear daily communication, with respect for your home, your time, and your neighbors.
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 Newcastle adus & conversions 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.
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
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Newcastle.
Do you offer an attached ADU build in Newcastle, WA?
Yes. Attached accessory dwelling units within the home's footprint. Xion Build is a licensed, bonded, and insured adus & conversions contractor serving Newcastle and the surrounding WA communities.
How much does an attached ADU build cost in Newcastle?
Most attached ADU build projects in Newcastle run $174,000 – $522,500, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Newcastle price reflects the actual project — not a guess.
Do you offer free estimates for attached ADU build near Newcastle?
Absolutely. We provide free, no-obligation in-home estimates throughout Newcastle and the greater Eastside, with transparent, itemized pricing.
How long does an attached ADU build take?
Timelines depend on scope and permitting. Once the plan is confirmed we give you a realistic schedule and keep you updated as the adus & conversions work progresses.
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