Development Timeline

  • June 2006 - Issaquah School Board purchased Winterbrook Farm property for $3.33 million
  • October 2016 - Issaquah School Board entered into agreement with William Buchan Homes to purchase property for $4.16 million
  • November 22, 2016 - William Buchan Homes filed a Critical Area Designation Application with King County Department of Permitting and Environmental Review (DPER)
  • February 1, 2017 - pre-application meeting took place between DPER and William Buchan Homes. Please see notes from the meeting.
  • February 8, 2017 - initial feasibility period ended and was extended until sometime in early May 2017
  • April 4, 2017 - William Buchan Homes terminates Winterbrook Farm purchase agreement with Issaquah School District
  • April 7, 2014 - Issaquah School District Authorizes Sale of Winterbrook Farm at special meeting. Please see notes from the meeting.

Development plan

Conceptual homes plan and the critical area map

Development application process

For an explanation of the process for developing a subdivision in King County see Subdivision Application Information 

King County Development Codes

Critical Area Codes

21A.24.100 Critical Area Review

21A.24.110 Critical Area Report Requirement

21A.24.180 critical Area Tracts and Designations on site plans

21A.24.325 Wetlands-Buffers

21A.24.382 Wildlife Habitat Conservation Areas

21A.24.385-388 Wildlife Habitat Networks

21A.24.500Critical Area Designation

21A.24.515 Critical Area Monitoring

Septic codes

21A.24.510 Septic System Design

Drainage and Stormwater