Farzad and Connie started thinking about building a house five years ago when they were living in Cambridge, England. Farzad was finishing his doctorate in management and Connie was working for a Dutch bank. Their two kids were young, and the couple wanted to settle in Toronto, where Farzad grew up (Connie is from Hong Kong). They imagined a house that was minimalist but kid-friendly, environmentally conscious but not visibly so, and most importantly, adaptable. They hired the architect Paul Raff, and the resulting space, on a leafy street near Yonge and Eglinton, feels like a swanky yoga studio minus the mirrored walls. The kitchen is flanked by two identically sized spaces, which can be used interchangeably, as the living room or dining room—Farzad and Connie sometimes swap the two by season, eating next to the big backyard window in summer and cozying up by the same window to read in winter. The basement is kitted out with a kitchen in case their kids boomerang in their 20s and want their own space. And although the main level of the house is, right now, perfectly suited to family life, it was designed to be converted into a one-level retirement suite in the future, with Farzad’s office becoming a master bedroom and the entryway powder room becoming an ensuite.