ADU construction

Accessory dwelling units have become one of the smartest moves a Puget Sound homeowner can make, whether the goal is rental income, housing for family, or long-term flexibility. We build detached backyard cottages, attached ADUs, and garage and basement conversions. Recent Washington legislation has opened up ADU options in most of the cities we serve, but every jurisdiction still applies its own rules on size, height, parking, and utility connections, so we begin every ADU project with a site-specific feasibility review.

An ADU is a complete dwelling, and we build it like one. That means its own code-compliant kitchen and bath, proper egress, fire separation where required, and full insulation and ventilation designed for year-round comfort in our climate. Utility strategy is often the make-or-break detail: we evaluate whether your electrical service, water line, and sewer can support a second unit or need upsizing, and we price that reality into the project from day one instead of springing it on you later.

Because the work happens in your yard rather than your living room, ADU projects tend to be easier to live with than interior remodels. We establish site access, protect landscaping where we can, and keep a predictable crew schedule. You get the same weekly updates, transparent change process, and final walkthrough as any of our projects, plus documentation you will want if you ever rent or sell.