Toronto address · Ward 5, York South-Weston
455A Blackthorn Ave
The City of Toronto has 1 building permit since 2017 (1 still open) 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.
- Inspections under way
Small residential project · Addition(s)
Front and rear 2 storey addition, interior alterations
Applied Oct 12, 2006 · issued Apr 23, 2007 · Permit 06 183354 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
14 Haverson Blvd · Minor variance
To construct a second storey addition above the existing dwelling.
190 m away · filed Jul 31, 2026 · Approved
68 Haverson Blvd · Minor variance
To legalize and to maintain the new dwelling with a detached garage in the rear yard that is currently under construction. A previous Committee of Adjustment application (A0483/20EYK) approved a second storey addition above the existing dwelling, a two-storey rear addition and a rear detached garage with variances related to floor space index, length, depth, lot coverage of an ancillary structure and side yard setback of an ancillary structure.
170 m away · filed Jun 9, 2023 · Approved
323 Gilbert Ave · Minor variance
To construct a new three-storey four-unit detached dwelling (fourplex) with a front covered porch, front and rear basement level patios, and a rear three-storey staircase structure that will lead to rear balconies (on each level). Also, to construct an ancillary building (storage shed) in the rear yard.
240 m away · filed May 1, 2023 · Approved
70 Haverson Blvd · Minor variance
To construct a new dwelling.
200 m away · filed Jan 27, 2023 · Approved
358 Gilbert Ave · Minor variance
To alter the existing one-storey detached dwelling by constructing a complete second storey addition with front and rear balconies, and a ground level deck.
200 m away · filed Nov 30, 2022 · Approved
68 Haverson Blvd · Minor variance
To legalize and to maintain the new dwelling with a detached rear garage that is currently under construction. A previous Committee of Adjustment application (A0483/20EYK) approved a second storey addition above the existing dwelling, a two-storey rear addition and a rear detached garage with variances related to floor space index, length, depth, lot coverage of an ancillary structure and side yard setback of an ancillary structure.
170 m away · filed Apr 27, 2022 · Refused
76 Haverson Blvd · Minor variance
To construct a new detached dwelling with an attached garage.
210 m away · filed Feb 7, 2022 · Approved
18 Harlton Cres · Minor variance
To construct a two-storey front addition, a third floor addition and to create a secondary suite.
250 m away · filed Jan 11, 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.