173 Lowther Ave
About this site
173 Lowther Ave is a development site in The Annex, Toronto, with three development applications on the City's file. The largest is a Site Plan Approval for 11 storeys. Two files are under review or before the Ontario Land Tribunal, the most recent submitted on 2 December 2025. It sits in Ward 11, University-Rosedale.
Official Plan and/or Zoning By-law Amendment
At the TribunalAn amendment application under ss. 17 and 34 of the Planning Act, to permit use, height or density the in-force Official Plan and Zoning By-law do not.
- Application
- Official Plan and/or Zoning By-law Amendment
- City file number
- 25 261452 STE 11 OZ
- Status, the City’s wording
- OMB Appeal
- Submitted
- 2 December 2025
- Storeys
- Not in the City’s record
- Gross floor area
- Not in the City’s record
- Applicant of record
- Not named in the City’s record
Also filed under 175 Lowther Ave, 171 Lowther Ave.
Site Plan Approval
Under reviewA site plan control application under s. 41 of the Planning Act. Use and density are already permitted; what is under review is siting, massing, the public realm interface, servicing, access, waste and landscaping.
11 storeys
- Application
- Site Plan Approval
- City file number
- 25 241286 STE 11 SA
- Status, the City’s wording
- Under Review
- Submitted
- 17 October 2025
- Storeys
- 11
- Gross floor area
- Not in the City’s record
- Applicant of record
- Not named in the City’s record
Also filed under 175 Lowther Ave, 171 Lowther Ave.
Official Plan and/or Zoning By-law Amendment
Closed or refusedAn amendment application under ss. 17 and 34 of the Planning Act, to permit use, height or density the in-force Official Plan and Zoning By-law do not.
11 storeys
- Application
- Official Plan and/or Zoning By-law Amendment
- City file number
- 23 223597 STE 11 OZ
- Status, the City’s wording
- Closed
- Submitted
- 8 November 2023
- Storeys
- 11
- Gross floor area
- Not in the City’s record
- Applicant of record
- Not named in the City’s record
Also filed under 171 Lowther Ave, 175 Lowther Ave.
Questions about 173 Lowther Ave
Answered from the City’s Development Applications dataset and the Planning Act. General information, not legal or planning advice.
What is being built at 173 Lowther Ave?
The largest application on file proposes 11 storeys. Unit counts are not a field in the City's Development Applications dataset, so the number of homes is not stated here; where it exists it is in the planning rationale filed with the application.
Has the application at 173 Lowther Ave been approved?
Not yet. The file is recorded by the City as “OMB Appeal”. Before the Ontario Land Tribunal. Jurisdiction has moved from the City to the Tribunal. The Tribunal may substitute its own decision, and the file commonly settles with revised plans rather than proceeding to a full hearing.
How do I comment on a development application in Toronto?
Written submissions go to the assigned City planner and to your Ward Councillor, and they carry the most weight while a file is under review, before the staff recommendation report is finalised. The statutory notice, the community consultation meeting date and any submission deadline are not fields in the open dataset this page reads, so they have to come from the City's own record or the notice posted on the site.
What else is being built near 173 Lowther Ave?
Other applications within 500 m are listed on this page, and every application in The Annex can be browsed by ward and by stage in the planning section.
What this page does not carry
Unit counts are not a field in the City’s Development Applications dataset; where the figure exists it is in the planning rationale filed with the application. Committee of Adjustment matters, which are minor variance (s. 45) and consent (s. 53), are a separate City stream and are not in this dataset at all. Statuses are read from a published extract rather than a live feed, so confirm the current position against the City’s own record before relying on it.