Stack House is a three-story contemporary residence located in Toronto, Canada, designed in 2022 by Atelier RZLBD.

Description
A building is like a pile of books, which, being scaled and sized to our human body, is composed of horizontal platforms with consistent ceiling heights. A tall structure of three stories plus basement, Stack House is a playful expression of horizontal volumes, which are stacked on top of and cantilevered from each other.
The stack is composed of three ?blocks?. The lower block, containing the public programs, is finished in stucco. The middle block, containing the transitional programs, such as the multi-purpose room on the mezzanine level, is finished in charred wood. The upper block, containing the most private programs, such as the master bedroom and ensuite, is finished in metal paneling. While using stucco, wood, and metal to symbolize the three blocks, the overall dark gray color achieves subtlety in their differentiation, creating a contradictory image of monumentality and intimacy. Penetrating all these blocks is the quadruple-height staircase with diverse light shafts around it, travelling from the skylights all the way down to the basement. Rooms on different level abut this extreme vertical void at the center, either closed to be separated or opened to be combined. Located between the ground floor and the second floor, the multi-purpose room is a diagonal extension of the living room below and across as well as a di...