Development Standard Details

Are you building or developing within the City of Sumner?  This guide will help you find all the standards and specifications you need to guide your project through the regulations in Sumner.

• 2026 Development Specifications and Standard Details
  • 2026 Development Specifications
  • 2026 Appendix A Record Drawing Preparation and Submittal Requirements
  • 2026 Appendix B Stormwater Agreements
  • 2026 Appendix C Sumner Standard Notes and Details
    • Standard Notes
    • Standard Details
      • Water Details W3-XX
      • Sanitary Sewer Details SS4-XX
      • Storm Details SD5-XX
      • Street Details R6-XX
      • Misc. Details M7-XX

Contact Public Works:
pw@sumnerwa.gov
253-299-5700       

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