Doors Open Toronto is an annual event when buildings of architectural, historic, cultural, and social significance open to the public. The event, which includes the OAA Headquarters at 111 Moatfield Drive, will be taking place on May 28 and 29, 10 am to 5 pm.

Having completed its Renew + Refresh renovation project, the OAA is inviting the public to view the many strides in pursuit of zero net carbon performance and climate stability at a critical point. Guided tours at 11 am and 1 pm will include a look at the components chosen to meet this goal, including an energy-efficient geothermal system, solar panels, improved daylighting, motion sensors and LED fixtures, and tint-changing dynamic windows.