Arrondissement de Saint-Laurent relies on the Patrouille urbaine, a team of experienced inspectors, to provide a variety of services.

To improve safety on our territory, the Borough wishes to remind road users that it is prohibited to park a vehicle less than 5 metres from an intersection or crosswalk.

The treatment centre for organic waste (Centre de traitement des matières organiques -CTMO), located in Saint-Laurent borough, transforms garden and food waste into compost, using high-end equipment that maintains good air quality.

Particularly exposed to light sources, Saint-Laurent is taking action on its territory to reduce the excessive or inappropriate use of artificial light, commonly known as light pollution.

French is the official language of Québec. In accordance with the law, the city undertakes to be exemplary by communicating exclusively in French.

In 2023, in spite of economic slowdown and inflation, Montréal closed out the year with a surplus. The city has maintained its efforts to meet the needs of the population, while building a resilient and inclusive metropolis. Discover the details of its 2023 Financial Report.

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.

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.

Visit one of the borough’s garage sales: you’re sure to make some great discoveries!

Local art takes center stage in Pierrefonds-Roxboro!

The winning works from the 2025 Art Contest have now been revealed. Discover the talent of our local artists below or visit the exhibition at the Pierrefonds Cultural Centre from June 6 to 21, 2025, for an inspiring artistic experience.