Toronto address · Ward 5, York South-Weston
388 Blackthorn Ave
The City of Toronto has 6 building permits since 2017 (4 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.
- Revision issued
Small residential project · Multiple projects
Revision #1 - changes to structural elements onlyProposal for a 2 storey rear addition, new 2nd floor addition, interior alterations, rear deck. See also 24 157785 ZAP
Applied Aug 18, 2026 · issued Sep 1, 2026 · Permit 25 181930 BLD (revision 01)
- Inspections under way
Small residential project · Multiple projects
Proposal for a 2 storey rear addition, new 2nd floor addition, interior alterations, rear deck. See also 24 157785 ZAP
Applied Jun 23, 2025 · issued Aug 22, 2025 · Permit 25 181930 BLD
- Inspections under way
Heating and ventilation
HVAC - Proposal for a 2 storey rear addition, new 2nd floor addition, interior alterations, rear deck and a 2nd suite in the basement. See also 24 157785 ZAP
Applied Jun 23, 2025 · issued Aug 22, 2025 · Permit 25 181930 HVA
- Inspections under way
Plumbing
Plumbing - Proposal for a 2 storey rear addition, new 2nd floor addition, interior alterations, rear deck and a 2nd suite in the basement. See also 24 157785 ZAP
Applied Jun 23, 2025 · issued Aug 22, 2025 · Permit 25 181930 PLB
- Cancelled
Plumbing
Plumbing - Proposed one storey rear addition with walkout basement, interior alterations, detached garage and retaining wall forming a party-wall with neighbouring property at 390 Blackthorn Ave.
Applied Apr 22, 2010 · issued Nov 15, 2010 · completed Mar 10, 2022 · Permit 10 158161 PLB
- Cancelled
Small residential project · Multiple projects
Proposed one storey rear addition with walkout basement, interior alterations, detached garage and retaining wall forming a party-wall with neighbouring property at 390 Blackthorn Ave.
Applied Apr 22, 2010 · issued Nov 12, 2010 · completed Mar 10, 2022 · Permit 10 158161 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
343 Blackthorn Ave · Minor variance
To construct a new fourplex and a new as of right garden suite in the rear.
90 m away · filed May 8, 2026 · Approved
81 Aileen Ave · Minor variance
To construct a new fourplex.
230 m away · filed Jan 29, 2026 · Approved
405 Silverthorn Ave · Minor variance
To construct a new two-storey garden suite in the rear yard that will include an attached garage. The existing detached garage and shed will be demolished.
190 m away · filed Oct 17, 2025 · Approved
402 Blackthorn Ave · Minor variance
To enclose the existing rear porch.
120 m away · filed Mar 18, 2025 · Approved
342 Gilbert Ave · Minor variance
To alter the existing two-storey ancillary building (detached garage), abutting Bronco Avenue, by converting the second floor into a new second storey garden suite, constructing a front (east) walkout, and reconstructing the exterior south side staircase. The garage area would remain on the ground level of the ancillary building. The existing one-storey detached main dwelling on the property would remain unaltered.
240 m away · filed Aug 2, 2023 · Approved
320 Silverthorn Ave · Minor variance
To alter the existing two-storey detached dwelling (within the Commercial/Residential (CR) zone) by constructing a rear two-storey addition with ground and second storey rear balconies, and a side (south) parking pad. Also, to alter the existing storage shed located in the rear yard.
240 m away · filed May 12, 2023 · Approved
20 Kenora Cres · Minor variance
To construct a two-storey rear addition and a new front porch.
90 m away · filed Oct 5, 2022 · Approved
357 Silverthorn Ave · Minor variance
To construct a new dwelling with an integral garage.
130 m away · filed Aug 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.