Blog

ADU construction guides

What it costs, and what it takes, to add a legal accessory dwelling unit.

All Permits Kitchen Bathroom Countertops Design ADU Whole Home Custom Homes Process Bellevue Seattle Kent Kirkland Sammamish Issaquah

Showing all 1 ADU articles

Split image of a Seattle DADU: a blue pre-approved plan drawing on the left resolving into the finished cedar-clad backyard cottage on the right, with the Space Needle behind

ADU

Seattle pre-approved DADU plans vs. custom design: which saves more time and money?

Building a backyard cottage is one of the best ways to add space or rental income to a Seattle property, and the very first decision you make can shape the entire budget.Aug 3, 2026Read article

Ready when you are

Have a project in mind?

Reading up is a good start. When you are ready for a real number, tell us what you are planning and we will put a written estimate together, with no pressure to sign.

Get my free estimate