MacKay-Lyons Sweetapple Architects adds concrete extension to Quebec spa

Canadian studio MacKay-Lyons Sweetapple Architects has expanded a thermal spa and baths complex in Quebec, adding a concrete plinth that houses an outdoor swimming pool and a hidden relaxation room.
The Balnea Spa and Thermal Reserve is tucked away close to the ski town of Bromont in the Appalachian Mountains, southeast of Montreal and north of Vermont, USA.
Balnea Spa's new concrete volume extends the sun terrace and creates a swimming pool on its roof
As part of a significant expansion project