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Important notification

Due to rapid construction growth and rebound of business, we are experiencing high volumes of plumbing plan submittals with first review comments at approximately 14 to 16 weeks. The allowance to request "Expedited Plan Review" has been extended to December 31, 2021.

Effective March 22, 2021: A plumbing permit, gas piping permit, and backflow device permit shall be obtained for each townhome (single family home) that is constructed under one building (roof). Download the related memorandum for details (PDF).

Many buildings are closed to the public or have limited access in order to help slow the spread of COVID-19. To prevent Legionella growth, these systems must be actively managed and maintained. See information and guidance to reduce Legionella growth and other pathogen and corrosion concerns that occur when there is a large drop in building water use.

Use the Online Services Portal to purchase plumbing, backflow assemblies, gas piping, medical gas permits and plan review submittals.

Inspection request phone number: 206-205-0935

All inspection requests for plumbing, gas piping, backflow assemblies, and medical gas piping shall be performed through our Integrated Voice Response (IVR) system. An inspection request for different permits on a project shall be independently requested through the IVR to receive an inspection for those permits.

  • A "same day" inspection shall be requested prior to 6:00 am that day.
  • An inspection request is not a "scheduled inspection". Inspectors will call the morning of the requested day to confirm when the inspection will be performed.
    • Inspections are not guaranteed to be performed on the day requested.
    • Inspections are not scheduled for a specific time of the day. The assigned inspector may provide a time frame given their assigned inspections.
  • Inspections can be canceled through the IVR when submitted by 5:55 am the day of. If a cancelation is needed after 6:00 am, inform the inspector when they call or call one of the senior inspectors.
  • Please be prepared to answer the callback number between 6:30 am to 8:00 am.
    • Check for any messages during this time
    • Make sure the voicemail is active (not full)

The 2018 edition of the Plumbing and Gas Piping codes will be effective on March 15, 2021.

Between February 1, 2021 and March 14, 2021, The Public Health Plumbing and gas Piping program will accept permit applications using either the 2015 or 2018 codes. Beginning March 15, 2021, Public Health will only accept permit applications that use the 2018 codes.

  • Exception: A project where the building department has accepted plans prior to March 15, 2021.


  • Due to the Governor's "Stay Home—Stay Healthy" order, the Plumbing and Gas Piping program will limit the business hours for plan review document submittals to every Wednesday morning between the hours of 9 AM to 1 PM. For customers who wish to drop plans during the established day and time; it is required to contact Harpreet Sandhu (Sandy) at: 206-477-8638,, to obtain delivery instructions.

  • Front office closures:
    To reduce person-to-person contact related to COVID-19, the Environmental Health Services Division's in-person counter services at 401 Fifth Avenue in Seattle, WA (Chinook Building) and 14350 SE Eastgate Way in Bellevue, WA (Eastgate Public Health Center) will be suspended through the end of March. See full notice on the Environmental Health homepage.


Environmental Health Services
401 5th Ave, Suite 1100
Seattle, WA 98104

Phone: 206-263-9566
Fax: 206-296-0189
Inspection request line: 206-205-0935
Find a plumbing and gas piping inspector nearest you
For Vashon Island residents:
Plumbing and gas piping inspections located on Vashon Island are only performed on Wednesdays.

Permit hours

  • Mon. Wed. Fri: 8:00 am to 3:00 pm
  • Tues. and Thurs: 10:30 am to 3:00 pm
  • Phones are answered until 3:00 pm

Environmental Health Services
14350 SE Eastgate Way
Bellevue, WA 98007
Phone: 206-477-8050
Fax: 206-296-9792
Inspection request line: 206-205-0935
Find a plumbing and gas piping inspector nearest you

Permit hours

  • Mon. Wed. Fri: 8:00 am to 3:00 pm
  • Tues. and Thurs: 10:30 am to 3:00 pm
  • Phones are answered until 3:00 pm

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