Water and/or Sewer Service for a Development

EFFECTIVE FEBRUARY 22, 2021: Sammamish Plateau Water has temporarily paused new sewer connections for 90 days in key areas with limited sewer capacity. Affected sewer basins include: Northeast Plateau, Beaver Dam, Inglewood East, Tiburon, North Lake Sammamish, and Central Lake Sammamish.

For details and maps regarding this 90-day moratorium, please visit LetsTalkAboutOurSewer.org.


Whether you’re new to building or a seasoned pro, there’s no denying that developing new homes and neighborhoods is complicated. While working together, it’s our desire to make this process as streamlined as possible and with few surprises or delays. To keep this process moving smoothly, we’ve created easy-to-follow process graphics to help chart your way through the development steps. Please review the guidelines and process charts linked below.

Starting the Process to Get Water and/or Sewer Service For a Development

DEA Process Map