Detached ADU (DADU) Build in Bothell, WA

Detached ADU (DADU) Build in Bothell, WA

When Bothell homeowners search for detached ADU (DADU) 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. Stand-alone backyard cottages from foundation to finish.

Bothell homeowners balance growing families and aging homes — additions, basement finishes, and kitchen remodels see strong demand here.

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 detached ADU (DADU) build

A typical detached ADU (DADU) build in Bothell can involve framing, permits, the kitchen and bath, utilities — 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 a detached ADU (DADU) build cost in Bothell?

Most detached ADU (DADU) build projects in Bothell fall between $180,000 – $450,000, 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 adus & conversions project — so there are no surprises later.

Why Bothell homeowners choose Xion Build

Honest guidance on where to invest and where to save, so your budget goes toward what adds real, lasting value.

Transparent, written estimates with no hidden fees — you know what you're paying for before work begins.

One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.

Our Bothell adus & conversions process

It starts with a free, no-obligation consultation: what you want, the constraints, and a realistic budget range before you commit to anything.

We pull the permits, schedule every trade in the right order, and protect your home, landscaping, and daily routine throughout the build.

Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.

Frequently asked questions

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