Lot Frontage Pattern Study
Daniel Du, Development Analytics
Generated 2026-09-22

== Method ==
We compute frontage geometrically for every lot. First we identify the street-facing boundary of the lot against the City street centreline network. Then we measure the extent of that boundary as a projection onto the street direction. This method avoids two common errors in frontage tables. The first error is to read side lot lines into the frontage. The second error is to rely on assessment-roll frontages of unknown date.

We exclude corner lots from the statistics. Frontage assignment between the two streets of a corner lot is a legal interpretation. It cannot be measured from geometry alone. Corner lots are shown unshaded on the map. We also exclude road parcels, corridor parcels and unaddressed slivers.

The by-law minimum is the 'f' value in the zone label under Zoning By-law 569-2013. We class each lot against this minimum. We also class each lot against the width that the demonstration scenario proposes.

== Sources ==
- City of Toronto Open Data: Municipal Parcels and Street Centrelines, accessed September 2026.
- City of Toronto Zoning By-law 569-2013, as amended: zone label 'f' values.

This is a demonstration study on a randomly selected site. No application exists at this address. Daniel Du (Development Analytics) prepared this as a work sample. It is not planning advice for any specific matter.
