Topographic Mapping – Building Outlines

Polygon layer representing the physical area of buildings. Building polygon collection is split into two “classes”. - Simple buildings are buildings which are 3 storeys or less. These building polygons will be collected at the outer extents of the roof. - Complex buildings are collected as multiple overlapping polygons representing the extents of individual roof elevations. Rooftop structures (i.e. Elevator rooms, air conditioning structures) may be collected as well. These polygons Part of the City’s topographic mapping products, the data is collected from high resolution aerial photography. The data is a representation of the physical features that are visually identifiable in an aerial photograph.

Publisher

City of Toronto

Resources

1

Catalogue metadata updated

2026-04-05