Municipal recreational and cultural facilities are at the heart of community life across Canada. They are also some of the largest sources of energy use and greenhouse gas emissions in municipal building portfolios. With the support of FCM’s Green Municipal Fund, Canadian local governments are developing “net zero over time” retrofit plans for these facilities, in order to meet local net zero emissions targets by 2050 or earlier. This panel discussion will explore how municipalities and their partners are approaching the shift from incremental to deep building retrofits, and the emerging opportunities to replicate and scale up this work to meet Canada’s retrofit challenge.