Community buildings are indispensable social hubs, service providers, and points of intersection among diverse groups of people. Like a public square, a successful community building is universally inclusive and nimbly evolves throughout a day: a place for seniors in the morning, for children after school, and for community groups in the evenings. At their best, they exert a gravitational rhythm, drawing people inward even as their influence radiates outward to enrich the neighbourhood.