Toronto address · Ward 14, Toronto-Danforth
448 Cosburn Ave
The City of Toronto has 3 building permits since 2017 (3 still open) 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.
- Permit issued
Small residential project · Addition(s)
Proposal to alter the existing two-storey semi-detached dwelling by constructing a rear two-storey addition. The existing rear deck and stairs, and rear detached garage will be maintained.
Applied May 14, 2025 · issued Jul 15, 2025 · Permit 25 159388 BLD
- Permit issued
Heating and ventilation
HVAC - Proposal to alter the existing two-storey semi-detached dwelling by constructing a rear two-storey addition. The existing rear deck and stairs, and rear detached garage will be maintained.
Applied May 14, 2025 · issued Jul 18, 2025 · Permit 25 159388 HVA
- Inspections under way
Small residential project · Interior alterations
To convert crawl space under rear covered porch to cold room
Applied Feb 26, 2020 · issued Jun 12, 2020 · Permit 20 119578 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 two-storey semi-detached dwelling by constructing a rear two-storey addition. The existing rear deck and stairs, and rear detached garage, will be maintained.
Decision: Approved (hearing Nov 6, 2024)
Filed Jun 20, 2024 · File A0590/24TEY
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
322 Cosburn Ave · Minor variance
To construct a new three-storey (12-unit) apartment building which will span across two lots. This lot (Part 2) will contain six residential dwelling units with front and rear basement walkouts, a front porch with stairs, and a rear third storey balcony. The second storey will be cantilevered on the west side of the building. There will be a total of two short term and five long term bicycle parking spaces in the rear yard.
210 m away · filed Aug 14, 2026 · Hearing scheduled
322 Cosburn Ave · Minor variance
To construct a new three-storey (12-unit) apartment building which will span across two lots. This lot (Part 1) will contain six residential dwelling units with front and rear basement walkouts, a front porch with stairs, and a rear third storey balcony. The second storey will be cantilevered on the east side of the building. There will be a total of one short-term and six long-term bicycle parking spaces in the rear yard.
210 m away · filed Aug 14, 2026 · Hearing scheduled
464 Cosburn Ave · Minor variance
To construct a new two-storey detached ancillary building (containing a two-car garage on the first storey and one garden suite on the second storey), abutting Linsmore Crescent. The new two-storey detached ancillary building will be partially cantilevered along the east side and will have a side (south) ground floor porch as well as a side (east) ground floor porch with stairs. There will be a total of four residential dwelling units on this lot (three units occupying the main dwelling, and one unit occupying the ancillary building).
100 m away · filed Apr 1, 2026 · Approved
63 St Hubert Ave · Minor variance
To construct a new three-storey detached dwelling (basement level is considered the first level) with an integral garage, a front porch, a rear second storey covered deck, and a rear basement walkout. There will be a total of two residential dwelling units on this lot (one unit within the basement (first) level and one unit occupying the second and third levels).
250 m away · filed Feb 12, 2026 · Approved
1107 Greenwood Ave · Minor variance
To alter the existing one-storey detached dwelling by constructing a complete second storey addition, a rear two-storey addition with a covered ground floor deck, stairs, and basement walkout, and a covered front porch with stairs. There will be a total of two residential dwelling units on this lot (one dwelling unit occupying the basement, and one dwelling unit occupying the first and second levels). The existing rear enclosed porch will be demolished.
140 m away · filed Nov 26, 2025 · Approved
1128 Greenwood Ave · Minor variance
To alter the existing one-storey detached dwelling by constructing a complete second storey addition (which will be cantilevered on the south side), a front ground floor porch with stairs, and a rear basement walkout. There will be one parking space along the south side of the dwelling.
210 m away · filed Sep 18, 2025 · Approved
15 Derwyn Rd · Minor variance
To alter the existing one-storey detached dwelling (approved under Building Permit No. 20 23 1408363 BLD) by constructing a front covered porch, a complete second storey addition, and a rear two-storey addition with a ground floor deck. There will be one primary unit and one secondary suite (located within the basement) on this lot.
240 m away · filed Oct 15, 2024 · Approved
464 Cosburn Ave · Minor variance
To convert the existing one-storey detached dwelling from one residential dwelling unit into three residential dwelling units (triplex) by converting the attached garage into habitable space, and to construct a one-storey side (east) addition. Also, to construct front and side (east) covered porches with stairs, a rear covered deck with stairs, as well as front and rear basement walkouts. In addition, to construct a two-storey ancillary building (containing two garden suites) with a basement area and a canopy, abutting Linsmore Crescent. There will be a total of five residential dwelling unit…
100 m away · filed Apr 2, 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.