Toronto address · Ward 9, Davenport
35 Blackthorn Ave
The City of Toronto has 5 building permits since 2017 (2 still open) and 1 Committee of Adjustment file 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
Heating and ventilation
HVAC Rev 01 - Proposed New Laneway / Rear Yard Suite (91.63sqm)
Applied Oct 15, 2024 · issued Dec 13, 2024 · Permit 23 114795 HVA (revision 01)
- Closed
Small residential project · New laneway / rear yard suite
Revision - foundation revised to helical pile system and structural framing revised to accommodate tree
Applied Feb 12, 2024 · issued Feb 21, 2024 · completed Apr 16, 2026 · Permit 23 114795 BLD (revision 01)
- Inspections under way
Heating and ventilation
HVAC - Proposed New Laneway / Rear Yard Suite (91.63sqm)
Applied Feb 16, 2023 · issued Apr 5, 2023 · Permit 23 114795 HVA
- Closed
Plumbing
Plumbing - Proposed New Laneway / Rear Yard Suite (91.63sqm)
Applied Feb 16, 2023 · issued Apr 5, 2023 · completed Sep 17, 2024 · Permit 23 114795 PLB
- Closed
Small residential project · New laneway / rear yard suite
Proposed New Laneway / Rear Yard Suite (91.63sqm)
Applied Feb 16, 2023 · issued Apr 5, 2023 · completed Apr 16, 2026 · 1 home added · Permit 23 114795 BLD
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.
- Closed
Minor variance · New R building
To construct a two-storey ancillary building containing a laneway suite, in the rear yard abutting the laneway.
Decision: Approved (hearing Dec 7, 2022)
Filed Sep 16, 2022 · File A1012/22TEY
What’s planned nearby
Development sites within 500 m
- Under review
20-36 Caledonia Road and 1500-1536 St Clair Avenue West
17 storeys · Mixed use
240 m away · Condominium · Under review · filed Oct 25, 2021
- Under review
21 storeys · 330 homes · Mixed use
250 m away · Rezoning · Under review · filed Dec 18, 2025
- Under review
17 storeys · 258 homes · Mixed use
250 m away · Site plan · Under review · filed Jun 24, 2022
- Under review
18 storeys · 211 homes · Mixed use
310 m away · Rezoning · Under review · filed Jun 20, 2025
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.
140 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.
180 m away · filed Apr 9, 2026 · Approved
66 Silverthorn Ave · Minor variance
To alter the existing two-storey semi-detached dwelling by replacing the front yard parking space with an exterior staircase (which will lead to all levels and the rooftop).
200 m away · filed Jun 24, 2025 · Approved
37 Blackthorn Ave · Minor variance
To alter the existing two-storey detached dwelling by constructing a partial rear third storey addition, and a front third storey rooftop deck (above the second storey portion of the dwelling).
20 m away · filed Jun 13, 2025 · Approved
37 Blackthorn Ave · Minor variance
To alter the existing two-storey detached dwelling by constructing a third storey addition with a deck (above a portion of the second storey of this dwelling).
20 m away · filed Aug 22, 2024 · Approved
1649 St Clair Ave W · Minor variance
To alter the existing two-storey mixed-use building by constructing a complete third storey addition, a rear cantilevered three-storey addition, a rear integral garage, and a rooftop deck. The existing ground floor commercial space will be maintained and unaltered. One residential dwelling unit will occupy the front second and third storeys as well as the rear three-storey addition.
150 m away · filed Nov 6, 2023 · Approved
24 Silverthorn Ave · Minor variance
To convert the existing one-and-one-half-storey detached dwelling into a three-storey triplex by constructing a front one-storey addition, a partial rear one-storey addition, second and third storey additions, front and rear second storey balconies, a front third storey balcony, a rear ground floor deck and a rear basement walkout. Also, to convert the existing one-storey ancillary building (detached garage, in the rear yard) into a two-storey garden suite by constructing a second storey addition and removing the existing parking space.
200 m away · filed Jul 25, 2023 · Approved
60 Blackthorn Ave · Minor variance
To alter the existing two-storey detached dwelling by constructing a two-storey rear addition, a rear raised deck with stairs, and an ancillary structure (shed) in the rear yard.
70 m away · filed Oct 6, 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.