The laneway neighborhoods of Toronto feature back garages connected by narrow public streets. Future Cities Collective came up with innovative, energy-efficient living spaces that repurpose those outbuildings (Illustration: Future Cities Collective)

Photo: Giovanni_cg via Pixabay

At NorthSky at RidgeGate, in Lone Tree, Colo., the architecture is inspired by the region. (Photo: Eric Lucero Photography)

Photo: Keith Sutter Photography

Photo: Jason Risner

Photo: David Cohen