The Buoyant Foundation Project, at the University of Waterloo School of Architecture, has developed a low-cost flood risk reduction and climate change adaptation retrofit for buildings to foster sustainable and resilient communities. Our product is composed of recycled buoyancy elements and other locally available, cost-effective components. The retrofitted homes float passively during flooding while remaining grounded under ordinary conditions. This allows households to remain safely in place during floods, without damage. Our earth-friendly approach works in synchrony with natural flood cycles, rather than trying to control the forces of nature.