Data sources and licences

Data in this copy of the site was downloaded on October 25, 2026.

Ville de Montréal open data

Licensed under Creative Commons Attribution 4.0 (CC BY 4.0). Source: Ville de Montréal.

Assessment units (unités d’évaluation foncière)unites-evaluation-fonciere

Building, renovation and demolition permitspermis-construction

Notices of deteriorationavis-deterioration

Properties subject to the right of preemptionimmeubles-terrains-assujettis-droit-preemption

Housing (salubrity) inspectionsinspections-salubrite

Sites and buildings protected under the Cultural Heritage Actsites-immeubles-proteges-lpc

Inventories of heritage buildings built before 1940inventaires-des-immeubles-patrimoniaux-construits-avant-1940

Land use in the urban planaffectation-du-sol

Lead service line screening results (Palintest)depistage-entrees-service-plomb

Public treesarbres

Criminal acts (SPVM)actes-criminels

Administrative boundaries (boroughs)limites-administratives-agglomeration

Government of Quebec

Assessment rolls of Quebec (values, frontage, year built, owner registration date), Ministère des Affaires municipales et de l’Habitation, CC BY 4.0donneesquebec.ca

Address points for the other cities (Référentiel québécois des adresses), Ministère des Ressources naturelles et des Forêts (MRNF), CC BY 4.0donneesquebec.ca

Flood zones (Base de données des zones à risque d’inondation), Ministère de l’Environnement (MELCCFP), CC BY 4.0donneesquebec.ca

Register of contaminated sites (GTC), Ministère de l’Environnement (MELCCFP), CC BY 4.0. Includes rehabilitated sites; not exhaustive.donneesquebec.ca

Other public sources

Crime data: Service de police de la Ville de Montréal (SPVM), published by the City. Locations are moved to the nearest intersection; not a measure of the safety of a specific property.actes-criminels

Metro and bus stops: STM GTFS data.stm.info

Welcome tax brackets: Ville de Montréal, transfers in 2026.montreal.ca