Seattle Public Utilities Mami Hara, General Manager/CEO

Obtain or Upgrade Water Service

Development & Water Services

Seattle Municipal Tower
700 5th Ave., Seattle, WA 98104
Development Services Office
(206) 684-3333 /email

For water services
27th floor
M, W, Th, F: 8:00 a.m. – 5:00 p.m.
Tue: 10:30 a.m. – 5:00 p.m.

4th floor (lobby entrance)
Information & Payments desk

Online payments

Who to contact during the project process (pdf)

Sign up for updates about construction services.

Water service

If you are a property owner who wants a new connection to Seattle's water supply system or to upgrade your existing water service, follow the steps below:

Determine if there is adequate water for your project.

  • Apply for and receive an approved Water Availability Certificate (pdf)
  • Submit plan and receive plan approval (choose one):
    • Large Services/Hydrants (greater than two inches)
      • Submit plan to Seattle Public Utilities (SPU) for water service
      • Acquire SPU Engineering approval (your SPU Project Lead will help with this)
      • Acquire site-specific job costs from SPU
    • Small Services (two inches or less)
      • Provide site sketch showing desired location for new services
  • Street restoration: Customers are responsible for the full cost of street right-of-way restoration, which may include paving, sidewalks, wheelchair ramps, and other improvements. Applicable site-specific requirements are determined through the Seattle Department of Transportation’s (SDOT) Street and Sidewalk Opening and Restoration Director’s Rule, 5-2009.
  • Owner restores (Hire an SDOT approved private contractor)

Questions? Contact a SPU Project Lead. Email or call (206) 684-3333.

Related links

CAM 2600 (pdf) Street Use Utility Permitting Requirements
CAM 2601 (pdf) Pavement Restoration for Utility Service Connections
CAM 2602 (pdf) Becoming a Registered Pavement Restoration Contractor
Water Service Standard Charges
Water Service Client Assistance Memo
Backflow Prevention Requirements
Backflow Test Report Form (pdf)
Water Service Application (pdf)
Addendum to Add Additional Water Services (pdf)
Water-Saving Tips and Rebates for Commercial Buildings