Toronto address · Ward 9, Davenport
156 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
Heating and ventilation · Heat/Ventilation: SFD/Semi/TH
New ductwork for existing semi-detached dwelling.
Applied Aug 28, 2009 · issued Oct 23, 2009 · Permit 09 163710 MSA
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
7 Howick Ave · Minor variance
To legalize and to maintain the rear second storey addition (including a staircase leading to this addition), to the existing two-storey semi-detached dwelling, that was constructed without an authorized building permit.
220 m away · filed Apr 24, 2026 · Approved
20 Howick Ave · Minor variance
To construct a new three-storey detached dwelling with a covered front porch with stairs, a side (east) second storey patio, a rear ground floor deck, and a rear third storey deck. Also, to construct a rear one-storey detached ancillary building (shed). The existing front yard parking pad and driveway will be removed.
170 m away · filed Apr 9, 2026 · Approved
113 Silverthorn Ave · Minor variance
To alter the existing one-storey ancillary building (detached one-car garage) by constructing a rooftop deck (above the existing garage), and rooftop access stairs at the west side of the building.
140 m away · filed Jul 15, 2025 · Refused
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).
210 m away · filed Jul 10, 2024 · Approved
28 Gilbert Ave · Minor variance
To legalize and to maintain the existing side (north) second storey addition (above the rear covered porch), which was constructed without an authorized building permit. Also, to maintain the enclosed front porch, the side (north) carport canopy and parking space, the rear canopy, and the rear one-storey ancillary buildings (sheds).
230 m away · filed Mar 28, 2024 · Approved
139 Prescott Ave · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a rear two-storey addition. There are two residential units within this dwelling.
140 m away · filed Sep 12, 2022 · Approved
135 Prescott Ave · Consent
To obtain consent to sever the property into two undersized residential lots.
140 m away · filed Aug 31, 2022 · Approved
85 Silverthorn Ave · Minor variance
To legalize and maintain the existing one-storey ancillary structure (storage shed) in the rear yard of the property.
230 m away · filed Jan 24, 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.