Environmental & Regulatory Overlays
View flood zones, ravine protection areas, environmentally significant areas, and heritage properties
Check Property Environmental Risks
Enter coordinates to check if a location falls within any environmental or regulatory overlay
Check RisksFlood Zones (TRCA)
TRCA regulatory flood line polygons from flood plain maps and estimated flood plain studies. Properties in flood zones face development restrictions, higher insurance costs, and potential flood risk. Source: Toronto and Region Conservation Authority.
Ravine Protection Areas
Areas protected by the Ravine and Natural Feature Protection By-law. No construction, grading, filling, or tree removal is permitted without a permit from Urban Forestry. Source: City of Toronto.
Environmentally Significant Areas
Areas within Toronto's natural heritage system identified on Map 12A of the Official Plan. These areas require additional environmental study and protection before any development. Mostly located in ravines, river valleys, and along the waterfront. Source: City of Toronto.
Heritage Properties
Properties listed or designated under the Ontario Heritage Act. Heritage properties face restrictions on demolition and alteration. Heritage designation can affect property value, renovation costs, and development potential. Source: City of Toronto.