Building Department

6-Month Sewer Moratorium. On September 21, 2021, the City of Duvall passed a 6-month Emergency Ordinance that prohibits, with exceptions, connections to the sewer system and became effective immediately. See Frequently Asked Questions document for additional details. See Sewer Moratorium Application.

Until further notice, due to COVID-19 and associated restrictions, City Hall is closed to the general public. Appointments are required for permit pick-up and/or plan drop off. We have a contactless process for drop-off/pick-up. Contact the Building Department for more information.


The responsibility of the Building department is to protect the public’s health, life safety, and general welfare on the Built Environment incorporating the development and application of best practices principles.


Inspections can be scheduled by emailing or calling 425.788.1160 and providing the following information:

  • Permit Number
  • Address
  • Type of Inspection
  • Contact name and phone number

All inspections must be scheduled at least 24 hours in advance. Please note that the cut off time for inspection requests is 3 p.m.

Construction Hours

Duvall Municipal Code 6.04.060 specifies hours for construction activities as follows:

  • Monday – Saturday: 7:00 am to 6:00 pm
  • Sunday and Holidays: No work allowed

All types of improvements regardless of requiring a building permit are subject to land use regulations, e.g. property setbacks. Please contact the Planning Department, 425-788-1185, for more information.

Please read the State of Washington’s Requirements if you plan on acting as your own contractor.