Altius Architecture designed the Cliff House in Muskoka Lakes, Ontario, Canada. The house was intended to accommodate a family of four against the majestic backdrop of a popular lake. The house almost sprouts up from granite, which serves as the structure’s base. It’s also positioned to maximize views of the lake, light, and breezes off of the cliff. Sustainability was important to the owners, and thus the house takes advantage of passive and active strategies to reduce energy loads and augment comfort. During summer, solar shading limits heat gain while operable windows are orientated to take advantage of natural ventilation. In winter, optimized glazing and solar orientation help the house take advantage of the sun’s radiant energy.