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Lot check

100 Rosethorn Ave, Toronto

Zoning R

Residential with a site-specific exception.

Height limit: 11 m

An exception can change what’s allowed here; read it in the by-law before relying on this. Zoning By-law 569-2013

Homes allowed

  • ✅ Up to 6 homes in a house-form building (sixplex ward)
  • ✅ Plus a garden suite, or a laneway suite if the lot is on a public lane

Ward 9, Davenport. Development charges are waived for multiplexes of up to 6 homes in Toronto.

Limits None mapped

  • Heritage: not on the register
  • Flood and conservation: none mapped

Rulings within 400 m

  • 449 Rogers Rd · 351 m
    Approved · 4 units · New building · May 27, 2026
  • 451 Rogers Rd · 354 m
    Approved · 4 units · New building · May 27, 2026
  • Approved · 3 units · Apartment building · Jul 9, 2025
  • Approved · 3 units · Apartment building · Jul 9, 2025
  • Approved · 4 units incl. a suite · New building · Oct 23, 2024

All rulings

Building permits here

  • Interior Alterations · 2022 · Permit Issued
    Proposal for interior alterations in the existing semi-detached house.

Development applications within 500 m

  • 126 UNION ST
    Site Plan · Under Review
  • 100 UNION ST
    Site Plan · Under Review
  • 126 UNION ST
    Official Plan / Zoning By-law Amendment · Under Review
  • 100 UNION ST
    Official Plan / Zoning By-law Amendment · Under Review
  • 200 BENNY STARK ST
    Site Plan · Under Review
  • 200 BENNY STARK ST
    Site Plan · Under Review

For sale here now

Run the numbers for this lot See it on the planning map

A reading of the City’s public zoning maps, not a zoning opinion or legal advice. Site-specific exceptions, lot size, trees, heritage and servicing decide what a lot can really take: confirm with a zoning review or a planner before you buy. Sources: City of Toronto open data (zoning, wards, heritage register, building permits, Committee of Adjustment), conservation authorities’ open data.

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Buying an income property, adding units or building a multiplex? Tell Mehran Salehian about the property and what you have in mind. You’ll get a reply with next steps, and a full feasibility review if the project is worth one.