2025 Building Decarb Legislation Roundup

Welcome to BDC’s 4th annual building decarbonization legislative roundup. Before we dive into the 130 building decarbonization bills introduced in 2025, we will take a look back at the growing momentum, emergent trends, and novel policies that we’ve seen since 2022.

As always, to view these policies in more detail, you can visit our public legislative tracker.