Draft sustainable building practice guidance available for public comment

Commerce is seeking feedback on new draft guidance designed to help cities and counties implement regulations to incentivize affordable and sustainable building practices.

The draft guidance includes a fact sheet and checklist outlining requirements of HB 1183 (Chapter 139, Laws of 2025), including provisions for:

  • Retrofits of existing buildings for residential use
  • Accommodation for passive house certification requirements
  • Facade modulation and upper-level setbacks on residential projects
  • Affordable housing unit size

Both documents are available for public comment until Friday, Sept. 18.

Comments can be submitted by email to Ryan Shea at Ryan.Shea@Commerce.wa.gov.