Tax rates vary depending on the category of your building and the borough in which it is located.

In winter, in Saint-Laurent, we go out in the parks! Several activities for all age groups are available near you. Take advantage of the beautiful winter days to try them all. It’s free!

As host city to COP15, Montréal has invited cities across the world to make a commitment to protecting biodiversity. The challenge is to take 15 tangible actions towards pursuing and accelerating their efforts to preserve ecosystems.

Learn about the terms and conditions to apply online for a permit to carry out renovation, installation or construction work.

Protecting native pollinators and their habitats and recognizing their importance in Montréal’s urban ecosystems. This is the main objective of the 2022-2027 Montréal: A Biodiversity Territory to Support the Protection of Pollinators plan.

Saint-Laurent offers a variety of cultural workshops for all ages and tastes! Below is the list of workshops offered.

Water treatment plants must operate continuously in order to provide quality drinking water. This achievement is possible thanks to modern facilities like those at the Charles-J.-Des Baillets treatment plant, the third largest in Canada.

​Montréal is taking action to protect and restore biodiversity. In December, the city will host the COP15, a United Nations conference at which close to 200 countries will be called upon to engage in concrete actions to stop the loss of biodiversity around the world in the decade to come.

Every summer, Théâtre La Roulotte offers free performances (in French) in parks in Montréal neighborhoods.

After a rigorous assessment of the technical, operational and economic data, the agglomeration council decided on November 21, 2024 to discontinue the fluoridation process at the Pointe-Claire and Dorval drinking water production plants.