Toronto address · Ward 19, Beaches-East York
850 Cosburn Ave
The City of Toronto has 5 building permits since 2017 and 1 Committee of Adjustment file 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.
- Closed
Small residential project · Multiple projects
Proposal to demolish the existing entrance platform and stairs, lower the entrance door, and construct a new architectural feature wall.
Applied May 5, 2025 · issued May 14, 2025 · completed Oct 6, 2025 · Permit 25 154437 BLD
- Closed
Small residential project · Multiple projects
Revision 01 - Building Permit Revision 01 to original permit 22 133767 BLD 00 SR:1. Front entrance platform width changed to 1.3 m from 1.8 m; 2.Front entrance steps rotated by 90 degree; 3. Front yard parking width increased to 3.53 m from 2.63 m; 4.Front entrance walkway changed accordingly; 5. Front platform size reduced to grass in east.--------------------------------------------------------------------------------------------------------------------------------------Proposal for multiple projects to the existing 1 storey SFD-detached dwelling. Scope of work includes a 1 storey side addi…
Applied Apr 22, 2024 · issued May 31, 2024 · completed Nov 4, 2024 · Permit 22 133767 BLD (revision 01)
- Closed
Heating and ventilation
HVAC - Proposal for multiple projects to the existing 1 storey SFD-detached dwelling. Scope of work includes a 1 storey side addition, a full 2nd floor addition, a partial 3rd floor addition, a rear 2nd floor balcony, a front 3rd floor rooftop terrace and a new covered front porch. See also 21 162092 ZZC, 21 194337 MV and Final and Binding A1003/21TEY.
Applied Apr 12, 2022 · issued Aug 31, 2022 · completed Nov 4, 2024 · Permit 22 133767 HVA
- Closed
Plumbing
Plumbing - Proposal for multiple projects to the existing 1 storey SFD-detached dwelling. Scope of work includes a 1 storey side addition, a full 2nd floor addition, a partial 3rd floor addition, a rear 2nd floor balcony, a front 3rd floor rooftop terrace and a new covered front porch. See also 21 162092 ZZC, 21 194337 MV and Final and Binding A1003/21TEY.
Applied Apr 12, 2022 · issued Jul 14, 2022 · completed Nov 4, 2024 · Permit 22 133767 PLB
- Closed
Small residential project · Multiple projects
Proposal for multiple projects to the existing 1 storey SFD-detached dwelling. Scope of work includes a 1 storey side addition, a full 2nd floor addition, a partial 3rd floor addition, a rear 2nd floor balcony, a front 3rd floor rooftop terrace and a new covered front porch. See also 21 162092 ZZC, 21 194337 MV and Final and Binding A1003/21TEY. Also adding a secondary suite in the basement.
Applied Apr 12, 2022 · issued Jul 14, 2022 · completed Nov 4, 2024 · 1 home added · Permit 22 133767 BLD
Committee of Adjustment
This address's applications to the City's Committee of Adjustment since 2017, and any still open. A minor variance asks for a small exception to the zoning by-law, such as a little more height or a smaller setback; a consent divides a lot or grants an easement.
- Closed
Minor variance · R addition
To alter the existing one-storey detached dwelling by constructing a side one-storey addition, a full second storey addition, a partial third storey addition, a rear second storey balcony, and a front third storey rooftop terrace.
Decision: Approved (hearing Dec 8, 2021)
Filed Aug 5, 2021 · File A1003/21TEY
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
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.
250 m away · filed Feb 11, 2026 · Hearing scheduled
111 Virginia Ave · Consent
To obtain consent to sever the property into two undersized residential lots.
250 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.
250 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).
220 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.
110 m away · filed Jun 4, 2025 · Approved
1374 Woodbine Ave · Minor variance
To construct a new three-storey detached dwelling with four residential dwelling units (fourplex). There will be front and rear ground level porches, front and rear balconies on the second and third levels, and three surface parking spaces in the rear yard.
100 m away · filed Dec 10, 2024 · Approved
323 Woodmount Ave · Minor variance
To construct a new two-storey detached dwelling with an integral two-car garage, a front porch, a front second storey balcony, a rear ground floor deck, and a rear basement walkout.
150 m away · filed Sep 3, 2024 · Approved
5 Rednor Rd · Minor variance
To alter the existing one-and-one-half-storey detached dwelling by constructing front and rear second storey additions. The two existing residential dwelling units will be maintained (one unit within the basement and one unit occupying both first and second levels).
50 m away · filed Aug 16, 2024 · 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.