Multiple intervention at
1250 RENÉ-LÉVESQUE W
Developed in 1990 by IBM Marathon, the tower at 1250 René-Lévesque West stands out as one of the most elegant buildings of its time. Since its construction, COHÉSIO has maintained a continuous presence, becoming involved as early as the building’s initial delivery.
Following Oxford’s acquisition of the tower in 1996, COHÉSIO was appointed base building architect, marking the beginning of a long-term relationship. Over the years, the firm has supported the building’s evolution through a series of strategic interventions, ensuring consistency in its transformation. This involvement builds on earlier work, as COHÉSIO collaborated with Moureaux-Hauspy Design until 2006 on several initial tenant fit-outs for major law firms, contributing to the building’s interior architectural identity.
Among the most significant interventions is the development and transformation of a major data center, now known as Cologix MTL-3, initiated in 2008 and carried out over several years. The firm also completed numerous office fit-outs for major tenants, including projects for Bank of America, Spencer Stuart, MFS and Yellow Pages between 2011 and 2018.
Between 2013 and 2016, COHÉSIO participated in a major program to fully replace mechanical and electrical infrastructure, including cooling towers, generators, tanks and boilers. These upgrades ensured the building’s technical performance and long-term durability. During this period, the firm also acted as reviewer for tenant fit-outs, maintaining overall coherence and quality across interventions.
When BGO became the building owner in 2019, COHÉSIO continued its involvement, including the fit-out of a fitness facility in 2022 representing a $3.5 million investment, as well as the redevelopment of the forecourts along René-Lévesque Boulevard in 2024. The firm also developed a water management master plan in compliance with municipal regulations and led renovation projects for common areas within tenant floors.
When BGO became the building owner in 2019, COHÉSIO continued its involvement, including the fit-out of a fitness facility in 2022 representing a $3.5 million investment, as well as the redevelopment of the forecourts along René-Lévesque Boulevard in 2024. The firm also developed a water management master plan in compliance with municipal regulations and led renovation projects for common areas within tenant floors.