Toronto address · Ward 5, York South-Weston
404 Silverthorn Ave
The City of Toronto has 2 building permits 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.
- Closed
Small residential project · Garage
To construct new rear detached garage to single family dwelling.
Applied Mar 9, 2012 · issued Mar 13, 2012 · completed Jun 22, 2026 · Permit 12 134887 BLD
- Inspections under way
Small residential project · Porch
Reconstruct existing front porch with reduced south sideyard setback and excavate below. Remove existing roof attached to front wall.
Applied Oct 19, 2010 · issued Oct 21, 2010 · Permit 10 280210 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.
160 m away · filed Jul 31, 2026 · Approved
59 Donald Ave · Minor variance
To legalize and to maintain an existing second storey rear addtion with a platform and canopy above, and a rear yard deck.
70 m away · filed Mar 11, 2026 · Approved
81 Aileen Ave · Minor variance
To construct a new fourplex.
190 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.
180 m away · filed Oct 17, 2025 · Approved
176 Donald Ave · Minor variance
To construct a third storey addition above the existing dwelling and a new garden suite in the rear yard.
230 m away · filed Feb 28, 2025 · Approved
48 Kersdale Ave · Minor variance
To construct a one-storey west side addition, a second and third floor addition above the existing dwelling and a rear yard deck.
250 m away · filed Apr 5, 2022 · Approved
370 Silverthorn Ave · Minor variance
To construct a new front porch.
150 m away · filed Mar 15, 2022 · Approved
47 Harlton Cres · Minor variance
To construct a new detached dwelling with an attached garage.
160 m away · filed Jan 31, 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.