Methodology.
Where this data comes from and what it means.
How we read your address
The address you enter is matched against Toronto's official address registry (525,000+ points). The matched coordinates anchor every spatial query in the report. All distances are calculated from this point using haversine (straight-line) geometry.
Two classes of data
Every data source in a Perimtr report belongs to one of two classes. Understanding the difference matters for how you interpret what you read.
Location-based data · radius-scoped
Events, permits and mapped features tied to locations within the 1000m circle around your address.
Crime incidents · Fire incidents
Building permits · Front-yard parking
Cycling infrastructure · Street trees
Schools · Proximity POIs
Administrative stats · neighbourhood-scoped
Published at a boundary level. Attributed to the primary neighbourhood — the one with the largest share of your 1000m circle.
Population · Population density
Median household income · Renter share
311 ward totals
Census 2021 (Statistics Canada)
Class 2 data is never area-weighted across your circle. If you cross-check our Census numbers against the City of Toronto's Neighbourhood Profile, you will see the same figures.
Active data sources · 14 total
The cadence below describes how often publishers generally release or revise these datasets; it is not a promise that Perimtr has refreshed them on that schedule. Every report states its generation date and the actual coverage available for key sources.
| Source | Class | Refresh |
|---|---|---|
| Toronto Police Service — Major Crime Indicators | Class 1 | Quarterly |
| Toronto Fire Services — Fire Incidents | Class 1 | Annual |
| City of Toronto — Building Permits | Class 1 | Weekly |
| City of Toronto — 311 Service Requests | Class 2 | Annual |
| City of Toronto — Front-Yard Parking | Class 1 | Weekly |
| City of Toronto — Heritage Register | Class 1 | Quarterly |
| City of Toronto — Cycling Network | Class 1 | Quarterly |
| City of Toronto Urban Forestry — Street Trees | Class 1 | Annual |
| City of Toronto — Parks & Green Space | Class 1 | Annual |
| Toronto Transit Commission — GTFS Stops & Routes | Class 1 | Weekly |
| Toronto Open Data — Address Points (525k+) | Class 1 | Annual |
| Toronto Open Data — Neighbourhood Boundaries (158) | Class 2 | Annual |
| Statistics Canada — Census 2021 | Class 2 | 5-year cycle |
| TDSB / TCDSB / Private — School Locations | Class 1 | Annual |