Toronto multiplex permit record
583A Dufferin St
Old Toronto, Ward 09 Davenport. One multiplex permit filing on record with the City of Toronto since January 2024, first filed Jun 2, 2026.
What the City's permit record says
City structure type: 2 Unit - Detached · Status: Under Review , Revision Issued
Revision 02: Revision to permit, proposed interior alterations to create secondary suite, deck at third floor and install/ replace plumbing fixtures
Revision 02: Revision to permit, proposed interior alterations to create secondary suite, deck at third floor and install/ replace plumbing fixturesPlumbing - Proposal to reconstruct the existing single family dwelling in same location due to unsafe condition. "19-191746 UNS 00 VI"
Builder on the application: 2520485 ONTARIO INC
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.
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PlexCheck Toronto
What could be built at 583A Dufferin St
The filings here do not state a unit count. Ward 9 is one of the wards where six units are permitted as-of-right, so the ceiling on this street may be higher than what was filed. PlexCheck reads the City zoning stamped at this address, applies the multiplex rules for Old Toronto, and prices the build against CMHC survey rents for the surrounding area.
Run 583A Dufferin 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.