Building Envelope Study
Daniel Du, Development Analytics
Generated 2026-09-22

== Method ==
We measure the main building on each mid-block RD lot in a lot-aligned frame. The frame is derived from the lot's street edge. Depth is the extent of the footprint away from the street. Width is its extent along the street. Side yards are the gaps to each side lot line. Values come from the City's LiDAR building outlines intersected with the parcel fabric in EPSG:2952. The by-law defines building depth and length as wall-based measures that exclude permitted encroachments. Footprint measures can therefore read slightly larger. We state this difference rather than hide it. The per-lot table permits survey-grade verification where a file turns on centimetres.

== Sources ==
- City of Toronto Open Data: Topographic Building Outlines; Municipal Parcels; Street Centrelines (Sep 2026).
- City of Toronto Zoning By-law 569-2013: ss. 10.5.40.20, 10.5.40.30 (building length and depth), Chapter 900 exception x5.

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.
