In 2019 the CAE published a vision for a resilient built environment that is economically optimized in design, operation, retrofit/renewal and energy over a long-term horizon equivalent to the lifetime of the building/infrastructure (at least 50 years). In 2020 we held a major symposium, in partnership with Concordia University, involving many key stakeholders. This event explored the potential for a resilient ultra-low energy built environment with deep integration of renewables by 2050. Work continues. Details of events in fall, 2021 and spring, 2022 will follow shortly.