Toronto multiplex permit record
29 William St
York, Ward 05 York South-Weston. One multiplex permit filing on record with the City of Toronto since January 2024, first filed Sep 2, 2025.
What the City's permit record says
City structure type: 2 Unit - Detached · Status: Inspection
Proposal to demolish existing 1 storey SFD, construct new 3 storey Duplex
Drain - Proposal to demolish existing 1 storey SFD, construct new 3 storey Duplex
Plumbing - Proposal to demolish existing 1 storey SFD, construct new 3 storey Duplex
HVAC - Proposal to demolish existing 1 storey SFD, construct new 3 storey Duplex
Builder on the application: WELL CORE CORPORATION
Quoted text is the permit description exactly as the City publishes it. Declared value is what the applicant put on the application and excludes land. Net new units is blank on many sub-permits, so a dash means the City did not state a figure, not zero.
Check this yourself
We do not hold permit data of our own. Everything above is the City of Toronto's published record, rebuilt from open data. To confirm any of it, or to see anything filed after our last refresh, use the City's own lookups.
- Building Permit Application & Inspection Status
Look up any address. Covers applications up to 10 years old.
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Active Community Planning, Committee of Adjustment and TLAB applications.
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Coordinates are the City's own address point, not a geocoded guess.
PlexCheck Toronto
What could be built at 29 William St
The largest filing here created 2 units. Outside the sixplex wards the as-of-right ceiling is four units, and whether a given lot reaches it depends on its zone and area. PlexCheck reads the City zoning stamped at this address, applies the multiplex rules for York, and prices the build against CMHC survey rents for the surrounding area.
Run 29 William St in PlexCheckFree. The address is carried over, so the search box is already filled in.
Read next
Every multiplex filing since 2024, by ward and former municipality.
What the multiplex by-law lets you build, and where.
What happens between application and shovel.
Check the zone and the ward rules for your own address.
Source: City of Toronto Open Data, Building Permits (Active and Cleared) and Development Applications, joined to the City's One Address Repository on the City's own address point id. Data refreshed Aug 27, 2026. VanPlex is a British Columbia builder and does not operate in Toronto.