How to Build an ADU or DADU in Seattle: New Laws, Big Benefits, and Smart Next Steps

Thinking about building an ADU or DADU on your Seattle property? Whether you're planning for multigenerational living, looking to earn rental income, or exploring future investment potential, now is a great time to take action. Thanks to recent changes in Seattle’s zoning laws and streamlined permitting processes, adding a backyard cottage or in-law unit is more accessible than ever. In this article, we’ll break down the benefits, key regulations, and expert resources like ADUniverse to help you get started.