Renewal and upgrading work is being carried out at the Lachine drinking water treatment plant.

The Borough of Pierrefonds-Roxboro has published its first Social Development Action Plan for the years 2023-2027, with the aim of implementing a series of actions that address the concerns, needs and aspirations of residents of the borough.

Determined to play a key role in the ecological transition, the Borough of Pierrefonds-Roxboro has been restoring green spaces and riverbanks in public parks since 2023, implementing responsible practices in accordance with the Ministry of the Environment’s requirements.

On this page, the borough of Lachine’s Administration presents the latest news on work projects under way or planned on borough territory. These sometimes inconvenient projects, involving road repairs, park renovations or building construction, help improve our residents’ living environment.

The Sports, Leisure and Community Life Program for the Fall 2025 - Winter 2026 season is now available online.

Saint-Laurent has created a few microforests on its territory following a vote held during the second edition of Ville de Montréal’s participatory budget.

Where does the water you use every day come from? Where does the water that flows down the pipes and spills into the sewers end up? Discover the stages of the water cycle and the expertise of the teams who ensure its quality every day.

Offered free of charge for children aged 6 to 12, Saint-Laurent’s Zone épique offers a multitude of fun and educational activities inspired by various themes.

Find out how the new provisions in Saint-Laurent’s bylaw help reduce the number of bird collisions with glass surfaces in new buildings.

It is time to vote!