Water and Sewer Map
Property owners, homeowners, and developers can research Seattle's existing drinking water, drainage, and sewer infrastructure with the Development Services Office's (DSO) water and sewer map. Use the map to research:
- Water mains and services
- Sewer and drainage mains
- Parcel zoning and land use
- Environmentally critical areas
Information provided by the research map is for preliminary planning only and does not replace any application approval or permitting processes by City of Seattle departments and other jurisdictions.
How to Use the Water and Sewer Map
To find your property:
- Type your address in the search box located in the upper left corner
- Suggested addresses will appear and will refine as you type
- To select your address, click with your mouse or use the Down Arrow and Enter keys
- The map will zoom to your selected address