ISSAQUAH, WA-Both Issaquah and the Sammamish Plateau Water & Sewer District have exhausted their water rights due largely to dense growth in the area over the past few years. As a result, no new building permits will be issued by the City of Issaquah until a new pipeline project is completed down the road.

In response to the emergency situation, the City of Seattle has offered up to one million gallons a day to meet the needs of Issaquah and the neighboring Sammamish Plateau. The Seattle-to-Issaquah pipeline is still in the planning stages. The project is “not expected to be completed for another two years,” according to Peter Rosen, Environmental Planner for the City of Issaquah. “We haven’t even broken ground.”

Once the pipeline reaches Issaquah, several commercial and residential areas now on SPWSD water could be switched onto the Seattle treated supply. Through the project, Issaquah will gain the equivalent of 3,700 residential units when Seattle water starts serving the 1,735 homes of East Village on Cougar Mountain and the 3,250-home Issaquah Highlands.

The temporary Seattle water would come from Seattle’s conservation supply, which can supply 3M to 5M gallons a day in emergency situations. Issaquah’s use of the water could have Tacoma tapping into underground water in drought years.

Want to continue reading?
Become a Free ALM Digital Reader.

Once you are an ALM digital member, you’ll receive:

  • Unlimited access to GlobeSt and other free ALM publications
  • Access to 15 years of GlobeSt archives
  • Your choice of GlobeSt digital newsletters and over 70 others from popular sister publications
  • 1 free article* every 30 days across the ALM subscription network
  • Exclusive discounts on ALM events and publications

*May exclude premium content
Already have an account?

Dig Deeper



Join GlobeSt

Don't miss crucial news and insights you need to make informed commercial real estate decisions. Join now!

  • Free unlimited access to's trusted and independent team of experts who provide commercial real estate owners, investors, developers, brokers and finance professionals with comprehensive coverage, analysis and best practices necessary to innovate and build business.
  • Exclusive discounts on ALM and GlobeSt events.
  • Access to other award-winning ALM websites including and

Already have an account? Sign In Now
Join GlobeSt

Copyright © 2023 ALM Global, LLC. All Rights Reserved.