ADUs & conversions · Lynnwood, WA
Attached ADU Build in Lynnwood, WA
Attached accessory dwelling units within the home's footprint.
Attached ADU Build in Lynnwood, WA
When Lynnwood homeowners search for attached ADU build or a dependable adus & conversions contractor near them, they want craftsmanship that lasts and a crew that communicates. That's exactly what we do. Attached accessory dwelling units within the home's footprint.
Lynnwood homeowners get strong value from practical kitchen, bath, roofing, and addition projects that modernize the home.
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 Lynnwood can involve finishes, permits, utilities, framing — 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 Lynnwood?
Most attached ADU build projects in Lynnwood fall between $151,500 – $454,500, 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 Lynnwood homeowners choose Xion Build
One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.
Licensed, bonded, and insured in Washington — every project is built to meet or exceed code and backed by a written warranty.
Transparent, written estimates with no hidden fees — you know what you're paying for before work begins.
Our Lynnwood adus & conversions process
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.
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 offer an attached ADU build in Lynnwood, WA?
Yes. Attached accessory dwelling units within the home's footprint. Xion Build is a licensed, bonded, and insured adus & conversions contractor serving Lynnwood and the surrounding WA communities.
What should we decide before starting an attached ADU 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 Lynnwood.
Do you offer free estimates for attached ADU build near Lynnwood?
Absolutely. We provide free, no-obligation in-home estimates throughout Lynnwood 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.
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Lynnwood.
Related services in Lynnwood
In-law & multigenerational suite
Self-contained suites for extended family.
View detailsADU design & permitting
Plans and permits navigating local ADU rules.
View detailsDetached ADU (DADU) build
Stand-alone backyard cottages from foundation to finish.
View detailsADU utility & meter separation
Separate utilities and metering for rentals.
View detailsWe also serve these areas