BILL · 2021–22 SESSION

SB 5732: Green roofs

Concerning green roofs on large commercial and multifamily buildings.

Summary

Requires all new buildings 50,000 square feet or larger and designed after January 1, 2025, to cover 70 percent of the roof space with green roofing and solar panels.
Provides a cash-in-lieu of constructing a green roof option at a rate of $50 per square foot, to fund climate resiliency activities in the jurisdiction where the building is located.
Requires a cost-benefit analysis be conducted by the Washington State Institute for Public Policy to study the use of biosolar, agrivoltaic, and blue/green roof systems on buildings with a floor area of 10,000 to 50,000 square feet.

From the Senate Bill Report (SB 5732), written by the Legislature's nonpartisan staff. Read the full report ↗

Did not pass Did not pass · died in committee

AN ACT Relating to green roofs on large commercial and multifamily buildings;

No recorded floor votes. This measure never reached a floor vote.

Bill numbers restart every two years, so the same number is a different bill in each session.

SB 5732 (2025–26) Housing supply/GMA · Did not pass · died in committee
SB 5732 (2023–24) Property tax exemptions · Did not pass · passed Senate, stalled in House
SB 5732 (2019–20) Foundat. public health servs · Did not pass · died in committee
SB 5732 (2017–18) Industrial hemp research · Did not pass · died in committee
SB 5732 (2015–16) Law enforcement oversight · Did not pass · died in committee
SB 5732 (2013–14) Adult behavioral health · Enacted · Chapter 338, Laws of 2013
SB 5732 (2011–12) Manufacturing R&D activities · Did not pass · died in committee
SB 5732 (2009–10) Traffic infractions · Enacted · Chapter 490, Laws of 2009