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MAISON KOYA | Alain Carle Architecte

Saint-Sauveur, Canada

MAISON KOYA | Alain Carle Architecte

Photo credit: Raphael Thibodeau



Location: Saint-Sauveur, Québec, Canada
Year of completition: 2019
Area: 696 m2 / 7 500 ft2
Lead Architect: Alain Carle

Project manager: Isaniel Lévesque
Landscape design: Carlos Ipser
Contractor: Self build
Windows: Alumilex
Roof covering: Black sheet, Toitures Vaillancourt
Exterior wood 1: Light red cedar with a black dyed knot
Exterior wood 2: Cognac brown dyed light eastern cedarWood
Architectural concrete: Concrete with plank formwork
Cabinetmaking: Walnut and oak
Flooring: Slate tiles, oak planks
Landscape design: Concrete wall, paving of stone Saint-Marc guided and corten steel tanks
Photo credit: Raphael Thibodeau

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The site is part of a real estate development on the approaches to the town of Saint-Sauveur in the Laurentians. This area is in Montréal’s second ring of outlying communities, where the occupants have chosen to settle to combine a lifestyle in a natural setting (in the mountains) with the conveniences of a small regional town.

They have also chosen to make their project multigenerational, by allocating spaces for grandparents and their children. There is thus a temporal relationship, which poses an interesting problem for the design of this residence’s spaces.

The architect is interested in changing the nature of the program, the family composition, and the residents’ location in the spaces that are bound to change over time within the complex.

The project instead revolves around this temporal relationship, by structuring a mode of implementation related to the topographical features rather than to a logic of single-family row housing, typical of suburban areas. The project’s morphology materially distinguishes the more permanent elements of the residence, in concrete, from the more ephemeral components in wood. Like a sculptural bas-relief, the main traffic axes on the site become the two axes of the composition of the complex.


Different concrete retaining walls, landings, and transitional stairways install a new topography on the site, a conclusive structuring for what happens next. Deep geothermal boreholes “anchor” the composition in sustainability and address the energy needs metaphorically rather than in strictly technical terms.

Three wooden volumes are then deposited on the exterior of this new topography to accommodate the changing nature of the program. They are cantilevered on the concrete structures, in an unstable situation, and point respectively in opposite directions. Thus, this complex is detached from a conventional composition of the suburban single-family home, which often has a very distinct expression between the front and rear facades, to the detriment of the sides. Maison Koya instead seeks to establish a more open relationship with the site in the broader sense. The morphology here instead attempts, by multiple sawtooth patterns and small outdoor subspaces, to establish a diversified reading of the landscape, regardless of the structure of the lots or a single landscape component.

The idea of preferring a single point of view on the landscape (as the dominant observer) seems to attest to a recurring architectural problem, the outcome of thinking that favors the building as an “object”. In this perspective, the spaces are designed in the absence of reality as it is offered, in all its ambiguity and impurity, legitimizing a stylistic (i.e. canonical) approach instead of an approach based on the alterity of the form. Once again, the issue is not to work with ambiguity for the sake of ambiguity, to make it a “style” per se, but rather to accept the share of alterity offered by the infinite configurations of reality.