Habitat 67, QC, Canada

Limited Partnership of the Habitat 67 Complex
Montreal, Canada
2008–2026

Since 2008, SIMCO has supported the condominium association in the maintenance, preservation, and rehabilitation of the iconic Habitat 67 complex. Built between 1967 and 1970, the complex is internationally recognized for its unique architecture, composed of 354 prefabricated, prestressed concrete modules arranged in a pyramidal form and connected by pedestrian walkways—a blend of modernity and minimalism. Habitat 67 has been classified as a historic monument and has stood as an emblem of Montreal since 2009.

Ensuring Long-Term Durability of the Complex

SIMCO developed and completed a detailed inspection and in-depth analysis of the structure’s condition and load-bearing capacity, and designed a major intervention program to ensure the longevity of this iconic structure:

• Detailed inspection (visual, NDT, corrosion analysis)
• Documentation and analysis of the evolution of anomalies and pathologies
• Laboratory testing and concrete characterization
• Identification of ongoing degradation mechanisms
• Finite element modeling of the entire structure
• Service life analysis of structural elements
• Risk analysis and failure probability assessment
• Targeted and phased rehabilitation program
• Research and optimization of repair materials
• Concrete characterization tests and targeted structural analyses
• Preparation of rehabilitation plans and specifications
• Technical assistance during construction

Facilitating informed decision-making

The remaining service life of each type of element was assessed to determine failure probability and characterize risk, enabling targeted interventions. To issue repair recommendations, several scenarios were studied to evaluate their long-term impact. This risk-based approach provided managers with a structured tool for planning the work. The intervention plan designed by SIMCO prioritized issues to be addressed using a realistic technical and financial approach, while providing managers with a structured framework for planning the work.