Toronto address · Ward 19, Beaches-East York
851 Cosburn Ave
The City of Toronto has 1 building permit since 2017 on record for this address.
Building permits
Every permit the City lists for this address since 2017, and any still open from before, newest first.
- Cancelled
Small residential project · Interior alterations
Proposed to construct one additional interior rental room to existing dwelling total of 5 rental rooms.
Applied Jul 2, 2021 · completed May 17, 2023 · Permit 21 178705 BLD
Committee of Adjustment
No applications to the City's Committee of Adjustment for this address since 2017. That's where an owner asks for a minor variance (a small exception to the zoning by-law) or a consent to divide a lot.
What’s planned nearby
Development sites within 500 m
No rezoning, site plan, subdivision or condominium file open within 500 m, and no pre-construction project on the site.
Neighbours’ Committee of Adjustment files within 250 m
109 Virginia Ave · Minor variance
To construct a new two-storey semi-detached dwelling with a front integral garage, a front covered porch with stairs, a rear second storey deck with stairs, and a rear basement walkout. There will be a total of one residential dwelling unit on this lot.
240 m away · filed Feb 11, 2026 · Hearing scheduled
109 Virginia Ave · Minor variance
To construct a new two-storey semi-detached dwelling with a front integral garage, a front covered porch with stairs, a rear second storey deck with stairs, and a rear basement walkout. There will be a total of one residential dwelling unit on this lot.
240 m away · filed Feb 11, 2026 · Hearing scheduled
109 Virginia Ave · Consent
To obtain consent to sever the property into two undersized residential lots.
240 m away · filed Feb 11, 2026 · Hearing scheduled
111 Virginia Ave · Minor variance
To construct a new two-storey semi-detached dwelling with a front integral garage, a front covered porch with stairs, a rear second storey deck with stairs, and a rear basement walkout. There will be a total of one residential dwelling unit on this lot.
240 m away · filed Feb 11, 2026 · Hearing scheduled
111 Virginia Ave · Consent
To obtain consent to sever the property into two undersized residential lots.
240 m away · filed Feb 11, 2026 · Hearing scheduled
111 Virginia Ave · Minor variance
To construct a new two-storey semi-detached dwelling with a front integral garage, a front covered porch with stairs, a rear second storey deck with stairs, and a rear basement walkout. There will be a total of one residential dwelling unit on this lot.
240 m away · filed Feb 11, 2026 · Hearing scheduled
122 Holborne Ave · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a new front one-storey addition (enclosing the existing front porch).
200 m away · filed Nov 18, 2025 · Approved
301 Woodmount Ave · Minor variance
To alter the existing three-storey detached dwelling by constructing a rear two-storey addition with a ground floor deck and stairs.
130 m away · filed Jun 4, 2025 · Approved
From the City of Toronto’s open data: building permits (active, and cleared since 2017), Committee of Adjustment applications and address points, this record updated Sep 29, 2026, and the development sites from its Development Applications data. Contains information licensed under the Open Government Licence – Toronto. Construction cost estimates and contractors’ names are left out on purpose, and nothing here names an owner.