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The following information is for the greater Issaquah area only and excludes urban villages. If your project is located in an urban village, please contact the Permit Center.

For the complete version of the Landscaping Tree Protection code, see IMC 18.12

Note that a soil analysis is now required:
Soil Analysis and Proposed Use of Existing Soil: A laboratory analysis of topsoil conditions with an evaluation of the practical use of the soil and/or proposed retention for use in the final landscape design shall be prepared and submitted with the tree and vegetation evaluation and landscape plan (IMC 18.12.040 B).

City standards and details:

Additional Information and Resources
  • List of Certified Arborists: PNW-ISA and WSU
  • Soil Testing: KC
  • Plant Standards: ANLA
  • Good Landscaping Practices: WSU