Because of the narrow « L » shape of the urban site, the building’s volume had to be more complex than the ones the firm had previously developed for other substations. The station is nonetheless composed of three distinct volumes : a control center, a manoeuvring center and an electrical room, isolated with SF6 gas.

The building’s envelope is composed of brick and aluminium sidings, and curtain walls. The architectural treatment divides the masses and large volumes to reduce their visual impact on the street.

SF6 gas circuit breakers allow for enhanced management of electrical distribution on dense and odd-shaped sites. Because they are quieter and more space efficient than compressed-air circuit breakers, they are often used in urban substations. As it is the case for Henri-Bourassa and Bélanger substations, the site was freed from old pieces of equipment thanks to the greater efficiency of the new pieces.