Water and Sewer Map
Water and sewer map for buildings and land parcels in Seattle.
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.
This mapping application provides a limited view of Seattle's water infrastructure. For example, the application does not include transmission pipelines or feeder mains for reasons of water system network security. The application may show water mains that are not eligible for new water service connections (e.g., obsolete or "no-tap" water mains). Please reach out to the DSO if you need more detailed information about water infrastructure serving a particular parcel. Contact: spu_dso@seattle.gov or (206) 684-3333.
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
