ADUs & conversions · Redmond, WA
Attached ADU Build in Redmond, WA
Attached accessory dwelling units within the home's footprint.
Attached ADU Build in Redmond, WA
Xion Build provides expert attached ADU build in Redmond. As a trusted Redmond adus & conversions contractor, we manage design, materials, permits, and every trade in-house so your project stays on schedule and on budget. Attached accessory dwelling units within the home's footprint.
Redmond's newer neighborhoods and established acreage homes both call for clean scheduling and modern, low-maintenance finishes.
We write scope in plain terms: what we'll do, the materials, the sequence, and how any surprises are handled if something is uncovered.
What's included in your attached ADU build
A typical attached ADU build in Redmond can involve the kitchen and bath, permits, foundation, finishes — and we put the full scope in writing so you know exactly what's covered before work starts.
You get a single point of contact, licensed and insured trades, and clear communication from the first sketch to the final walkthrough.
How much does an attached ADU build cost in Redmond?
Most attached ADU build projects in Redmond 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 Redmond homeowners choose Xion Build
Local crews who know Eastside permitting, inspections, and the way Pacific Northwest weather tests a home.
Honest guidance on where to invest and where to save, so your budget goes toward what adds real, lasting value.
Licensed, bonded, and insured in Washington — every project is built to meet or exceed code and backed by a written warranty.
Our Redmond adus & conversions process
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.
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
Do you offer free estimates for attached ADU build near Redmond?
Absolutely. We provide free, no-obligation in-home estimates throughout Redmond and the greater Eastside, with transparent, itemized pricing.
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 Redmond.
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Redmond.
How much does an attached ADU build cost in Redmond?
Most attached ADU build projects in Redmond 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 Redmond price reflects the actual project — not a guess.
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.
Related services in Redmond
Garage conversion to ADU
Convert a garage into a legal, livable ADU.
View detailsADU kitchen & bath build-out
Compact, efficient kitchens and baths for ADUs.
View detailsDetached ADU (DADU) build
Stand-alone backyard cottages from foundation to finish.
View detailsGarage to living space
Convert a garage into a gym, office, or studio.
View detailsWe also serve these areas