Assomption Sud–Longue-Pointe

Last updated February 8, 2023
Reading time: 1 min

In collaboration with Mercier–Hochelaga-Maisonneuve, we are setting out a consistent, sustainable vision to create a convivial neighbourhood where citizens, workers and companies can cohabit harmoniously.

The area

The Assomption Sud–Longue-Pointe covers an area 3 km in length and 1 km in width, bounded by Avenue Souligny, the facilities of the Port of Montréal, the Longue-Pointe railway yard and Autoroute 25. It includes the Guybourg and Haig-Beauclerk residential districts, industrial parks, the Longue-Pointe, military base, empty lots and a port zone.

This area is greatly affected by the erosion of manufacturing activity. It contains several vacant and underused parcels. We would like to reimagine the area to attract new companies to this dense urban setting, while following sustainable development principles and healthful cohabitation with residential areas.


  • Offer high-quality neighbourhoods with limited disturbances and provide ecological land management
  • Create innovative industrial projects well integrated into their surroundings
  • Complete the road network and improve active transportation and public transit

In spring 2019, we contacted residents and a variety of stakeholders through a consultation led by the Office de consultation publique de Montréal (OCPM) to improve the vision and orientations for economic development and land planning proposed by the city.

Follow the evolution of the project at Réalisons Montréal - Écoparc industriel de la Grande Prairie (In French).