Site Development Permit (SDP)

A request for site development review that requires a public hearing.

Submittal Requirements

Apply Online

You must apply for this permit online through MyBuildingPermit.com. We will not accept paper applications or plans.

What Site Development Permit (SDP) level applies to my permit?

Level 1 projects include the following:

  • New development or exterior expansion of existing structures that is less than 4,000 gross square feet.
  • Any exterior modification (not including building expansion) to projects located within Olde Town, Central Issaquah, Issaquah Highlands, or Talus neighborhood overlays.

Level 2 projects include the following:

  • New development or exterior expansion of existing structures between 4,000-10,000 gross square feet.
  • Mineral extraction activities in the Intensive Commercial zone (“IC”) not in existence prior to August 2, 1999.
  • Minor amendments to a site development permit (Please IMC 18.208.030 for exemptions) 

Level 4 projects include the following:

  • New development or exterior expansion of existing structures where the proposed total new gross square footage is greater than or equal to 10,000 gross square feet.
  • New development, regardless of size, located in Olde Town on Front Street between NE Gilman Boulevard and Newport Way SW, or on Sunset between Newport Way SW and 6th Avenue SE.
  • New development or exterior expansion of existing structures on a site 1-acre or greater in size.
  • Major amendment to a site development permit (Please see IMC 18.208.030 for exemptions)

Informational Sheets

Review Times

See the Target Review Times Handout (PDF) for target review times.