Many luxury houses for sale in Calgary may be the ideal options for buyers with similar profiles. For instance, million-dollar mansions serve as the new homes of migrant business professionals who see fit to invest in the cityâ¤™s lucrative energy sector. Other high-end home buyers also contribute to the upswing in luxury home sales.Upscale single-family houses typically have more than 3 bedrooms as well as expansive indoor and outdoor living spaces. The best models and resale houses even receive multiple offers from serious buyers and real estate investors. Meanwhile, some working professionals and downsizing boomers also find luxury condo units more to their liking.