ADUs & conversions · Woodinville, WA
Detached ADU (DADU) Build in Woodinville, WA
Stand-alone backyard cottages from foundation to finish.
Detached ADU (DADU) Build in Woodinville, WA
Looking for detached ADU (DADU) build in Woodinville? Xion Build is a licensed, bonded, and insured adus & conversions contractor delivering standout results for Woodinville homeowners — start to finish, under one roof. Stand-alone backyard cottages from foundation to finish.
Woodinville's wine-country estates and acreage homes are ideal for additions, outdoor living, and kitchens built for entertaining.
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 detached ADU (DADU) build
A typical detached ADU (DADU) build in Woodinville can involve finishes, framing, permits, 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 a detached ADU (DADU) build cost in Woodinville?
Most detached ADU (DADU) build projects in Woodinville fall between $207,000 – $517,500, 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 Woodinville homeowners choose Xion Build
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.
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
Our Woodinville adus & conversions process
Each phase is inspected and documented, and we keep you updated so you always know what's happening and what's next.
Design and material selections come next, so finishes, fixtures, and pricing are locked in before demolition — no surprises mid-project.
We pull the permits, schedule every trade in the right order, and protect your home, landscaping, and daily routine throughout the build.
Frequently asked questions
What should we decide before starting a detached ADU (DADU) build?
Your budget range, must-haves, timeline, and any finishes you already love. For adus & conversions work we also review access, existing conditions, and whether permits are required in Woodinville.
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Woodinville.
Do you offer free estimates for detached ADU (DADU) build near Woodinville?
Absolutely. We provide free, no-obligation in-home estimates throughout Woodinville and the greater Eastside, with transparent, itemized pricing.
Are you a licensed adus & conversions 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 detached ADU (DADU) build cost in Woodinville?
Most detached ADU (DADU) build projects in Woodinville run $207,000 – $517,500, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Woodinville price reflects the actual project — not a guess.
Related services in Woodinville
Shop & studio build
Detached shops, studios, and flex buildings.
View detailsADU kitchen & bath build-out
Compact, efficient kitchens and baths for ADUs.
View detailsAttached ADU build
Attached accessory dwelling units within the home's footprint.
View detailsGarage conversion to ADU
Convert a garage into a legal, livable ADU.
View detailsWe also serve these areas