Environmentally Significant Areas

Areas of land or water within the natural heritage system with characteristics as defined in section 3.4 of the Official Plan and which are particularly sensitive and require additional protection to preserve their environmentally significant qualities. There are 89 environmentally significant areas identified on Map 12A of the Official Plan. The number of ESAs was last updated in 2025 through OPA 583. For more information about ESAs, please visit the Environmentally Significant Areas information page.

Publisher: City of Toronto
Resources: 2
Catalogue metadata updated: 2026-03-16

Data overview

Formats: CSV
File languages: English
Available actions: 1 queryable resources · 1 loadable resources · 1 mapped resources

Official sources and licences

City of Toronto Open Data
Open Government Licence – Toronto

Resources

Environmentally Significant Areas (English, CSV) CSV
Environmentally Significant Areas - 2945.csv (English) CSV

Related open data

City of Toronto
Toronto