Toronto address · Ward 9, Davenport
248 Blackthorn 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 · Garage
Enlarge existing detached rear yard garage
Applied Apr 16, 2012 · issued Apr 24, 2012 · completed Oct 2, 2025 · Permit 12 154916 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
44 Rowntree Ave · Minor variance
To convert the existing rear one-storey detached ancillary building into a two-storey ancillary building (containing a two-car garage on the ground level, and one garden suite that will occupy the rear portion of the ground level and the second level), by constructing a second storey addition, and a two-storey addition along the rear (north) and side (east) portion of the building. There will be a total of two residential dwelling units on this lot (one unit within the main dwelling and one unit within the ancillary building).
170 m away · filed Nov 24, 2025 · Approved
249 Silverthorn Ave · Minor variance
To alter the existing two-storey detached dwelling by constructing a rear two-storey addition, new front and rear covered verandahs with stairs, front and rear basement walkouts, and front and rear second storey balconies. Also, to construct a new two-storey detached ancillary building (containing one garden suite which will occupy both levels), in the rear yard of the property. There will be a total of four residential dwelling units on this lot (three dwelling units within the main house and one dwelling unit within the ancillary building).
50 m away · filed Jul 10, 2024 · Approved
291 Silverthorn Ave · Minor variance
To alter the existing two-storey mixed-use building ('Retail (Butcher) Store') by construct a new one-storey rear addition.
120 m away · filed Jul 21, 2022 · Approved
289 Blackthorn Ave · Minor variance
To alter the existing two-storey townhouse dwelling by constructing a two-storey rear addition with a ground floor deck, and to reconstruct the front porch stairs. The existing one-storey rear addition will be demolished.
110 m away · filed May 3, 2022 · Approved
167 Rosethorn Ave · Minor variance
To alter the existing three-storey detached dwelling by re-constructing the rear two-storey addition and constructing a rear ground floor deck, a rear second storey balcony with exterior stair access to the rear deck, and a rear third storey balcony. Further, a new secondary suite will be created for a total two units within the building.
220 m away · filed Oct 28, 2021 · Approved
35 Turnberry Ave · Minor variance
To construct a new rear detached garage.
240 m away · filed Aug 31, 2021 · Approved
152 Gilbert Ave · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a front two-storey addition.
240 m away · filed Jul 15, 2019 · Approved
198 Prescott Ave · Minor variance
To construct a third storey addition above the existing dwelling. A previous Committee of Adjustment application (A0892/16EYK) approved variances related to floor space index and depth.
140 m away · filed Nov 26, 2018 · 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.