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Blouin Tardif Architecture

Siamoises Mentana-Boyer

Montreal, Canada . 2014



Tucked away in the heart of Plateau Mont-Royal, on the private lot of a former commercial building, are these Siamese residences. Each co-property occupies half of the lot; their entrances are, respectively, on Mentana and Boyer streets.


The project’s constraints are those of the classic urban context: the envelopes of neighbouring buildings, joint use, and the challenge of natural light.

The architectural scheme optimized the layout to take advantage of the shape of the lot. To take advantage of its depth, the structure covered the entire area. Two inner courtyards were carved out, favouring penetration of natural light while offering high-quality private spaces.


The interior is organized on three levels. Living spaces occupy the top floor, offering an unpartitioned space that is completely glazed around the building’s central well. The façade reveals the articulation of the yards and terraces only through the breach on the top floor.

The original limited size of the lot led to new architectural reflection on urban space. The Siamoises offer two forms of luxury: an island of light and private space, centrally located in one of the city’s most popular neighbourhoods.


Technical sheet


Offical name of the project : Siamoises Mentana-Boyer

Location : Montreal, Québec, Canada

Client name : Confidential

Architects : Blouin Tardif Architecture Environnement

Head of the projet : Alexandre Blouin

Design team : Isabelle Beauchamp, Jonathan Trottier

Electricity/mechanical engineering : Calculatec

Project surface area : 250 m2 per residence

Project finalisation date : 2013


Blouin Tardif Architecture