Toronto address · Ward 19, Beaches-East York
663 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.
- Closed
Drains and site services · Back water valve (Sewer only)
Install Mainline backwater valve
Applied Apr 3, 2018 · issued Apr 5, 2018 · completed Apr 6, 2018 · Permit 18 137611 DRN
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
8 Holborne Ave · Minor variance
To alter the existing three-storey detached dwelling by replacing the rear first level deck with a one-storey addition with a platform and stairs.
140 m away · filed Jan 21, 2026 · Approved
723 Cosburn Ave · Minor variance
To alter the existing one-storey detached dwelling by constructing a complete second storey addition and a rear second storey balcony.
240 m away · filed Oct 14, 2025 · Approved
688 Cosburn Ave · Consent
To obtain consent to sever the property into two undersized lots.
90 m away · filed Jan 31, 2023 · Refused
688 Cosburn Ave · Minor variance
To construct a new three-storey semi-detached dwelling with rear first, second and third storey terraces, and a rear basement walkout on the conveyed lot. Also, a parking space will be located in the front yard.
90 m away · filed Jan 31, 2023 · Refused
688 Cosburn Ave · Minor variance
To construct a new three-storey semi-detached dwelling with rear first, second and third storey terraces, and a rear basement walkout on the retained lot. Also, a parking space will be located in the front yard.
90 m away · filed Jan 31, 2023 · Refused
877 Coxwell Ave · Minor variance
To alter the existing one-storey detached dwelling by constructing a complete second storey addition with a ground floor covered front porch, second floor covered front balcony, rear ground floor deck, and a new flat roof for the existing attached garage.
240 m away · filed Jan 3, 2023 · Approved
875 Coxwell Ave · Minor variance
To alter the existing one-storey detached dwelling by constructing a complete second storey addition, a two-storey rear addition, two rear decks, and a rear second storey juliet balcony. Also, to convert the existing garage into office space, and to construct a parking pad in the front yard.
240 m away · filed Oct 26, 2022 · Approved
686 Cosburn Ave · Minor variance
To alter the existing one-storey detached dwelling by constructing a new two-storey side and rear addition, a complete second storey addition, a new front porch and stairs, and new rear stairs.
80 m away · filed May 4, 2022 · 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.