351 Blackthorn Ave

Building permits

Every permit the City lists for this address since 2017, and any still open from before, newest first.

• Plumbing

  Plumbing - Proposal to convert fully detached dwelling to 4 units, interior alterations in basement, first and second floor and underpinning.

  Applied Nov 25, 2025 · issued Jan 21, 2026 · completed Jul 27, 2026 · Permit 25 132594 PLB

  Closed

• Small residential project · Multiple projects

  Revision 01: interior alterations and removal of fire rated ceiling. Proposal to convert fully detached dwelling to 4 units, interior alterations in basement, first and second floor and underpinning.

  Applied Nov 25, 2025 · issued Jan 5, 2026 · completed Jul 27, 2026 · Permit 25 132594 BLD (revision 01)

  Closed

• Small residential project · Multiple projects

  Proposal to convert fully detached dwelling to 4 units, interior alterations in basement, first and second floor and underpinning.

  Applied Mar 21, 2025 · issued Jul 22, 2025 · completed Jul 27, 2026 · Permit 25 132594 BLD

  Closed

• Small residential project · Other

  Interior alterations to convert an existing dwelling into four units.

  Applied Feb 23, 2024 · completed Dec 23, 2024 · 3 homes added · Permit 24 118150 BLD

  Cancelled

• Addition or alteration · Interior alterations

  Proposal to convert single family dwelling to 6 units

  Applied Sep 9, 2022 · completed Oct 21, 2022 · 5 homes added · Permit 22 201491 BLD

  Cancelled

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.

• Minor variance · R addition

  To convert the existing dwelling into an apartment building. The building will contain a total of 6 residential units.

  Decision: Approved (hearing May 25, 2021)

  Filed Oct 3, 2019 · File A0514/19EYK

  Closed

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

• 308 Silverthorn Ave · Minor variance

  To construct a new one-storey ancillary building (shed), in the rear yard of the property. The existing rear one-storey ancillary building (shed), with an interlock pad, will be demolished/removed.

  250 m away · filed Jun 9, 2026 · Approved

• 343 Blackthorn Ave · Minor variance

  To construct a new fourplex and a new as of right garden suite in the rear.

  20 m away · filed May 8, 2026 · Approved

• 402 Blackthorn Ave · Minor variance

  To enclose the existing rear porch.

  180 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.

  210 m away · filed May 12, 2023 · Approved

• 20 Kenora Cres · Minor variance

  To construct a two-storey rear addition and a new front porch.

  160 m away · filed Oct 5, 2022 · Approved

• 357 Silverthorn Ave · Minor variance

  To construct a new dwelling with an integral garage.

  120 m away · filed Aug 11, 2022 · Approved

• 5 Kenora Cres · Minor variance

  To maintain an existing ancillary structure (outside storage) in the rear yard.

  90 m away · filed Mar 25, 2022 · Deferred

Everything planned in York South-Weston