Toronto address · Ward 9, Davenport
1748 St Clair Ave W
St. Clair Silverthorn Public Library
The City of Toronto has 12 building permits since 2017 (5 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
Designated structure · Sign building permit related
To erect and display one illuminated wall sign.****TORONTO PUBLIC LIBRARY****
Applied Jul 24, 2019 · issued Sep 17, 2019 · completed May 14, 2020 · Permit 19 194508 DST
- Revision issued
New building
Revision 02 - Revision to relocate elevator machine room, update ceiling plans, rear elevation and access to rear exit.Construct a new two storey building with partial basement - St Clair Silverthorn Library
Applied Jun 10, 2019 · issued Aug 19, 2019 · Permit 16 269716 BLD (revision 02)
- Revision issued
Plumbing
Plumbing 01 - Revised plumbing layout as clouded in drawing. See revision summary. Construct a new two storey basement with partial basement - St Clair Silverthorn Library
Applied Jun 10, 2019 · issued Jul 10, 2019 · Permit 16 269716 PLB (revision 01)
- Closed
Heating and ventilation
HVAC 01- Revision to HVAC layout as clouded on drawings. See revision summary.Construct a new two storey basement with partial basement - St Clair Silverthorn Library
Applied Jun 10, 2019 · issued Jul 10, 2019 · completed Sep 15, 2026 · Permit 16 269716 HVA (revision 01)
- Revision issued
New building
Revision 01 - Proposed rermit revision to delete proposed green roof and proposed roof anchors.Construct a new two storey building with partial basement - St Clair Silverthorn Library
Applied Jul 25, 2018 · issued Aug 27, 2018 · Permit 16 269716 BLD (revision 01)
- Closed
Demolition
Demolish complete library building.
Applied Apr 5, 2017 · issued Oct 6, 2017 · completed Jan 18, 2023 · Permit 17 139632 DEM
- Closed
Drains and site services · Inside and outside drains
Drain - Construct a new two storey building with partial basement - St Clair Silverthorn Library
Applied Apr 5, 2017 · issued Jun 5, 2017 · completed Sep 15, 2026 · Permit 16 269716 STS
- Closed
Fire and security upgrade
FS - Sprinkler Shop Drawing - Construct a new two storey building with partial basement - St Clair Silverthorn Library
Applied Apr 5, 2017 · completed May 16, 2018 · Permit 16 269716 FSU
- Inspections under way
New building
Construct a new two storey building with partial basement - St Clair Silverthorn Library
Applied Dec 21, 2016 · issued Jun 5, 2017 · Permit 16 269716 BLD
- Closed
Heating and ventilation
HVAC - Construct a new two storey basement with partial basement - St Clair Silverthorn Library
Applied Dec 21, 2016 · issued Jun 5, 2017 · completed Sep 15, 2026 · Permit 16 269716 HVA
- Inspections under way
Plumbing
Plumbing - Construct a new two storey basement with partial basement - St Clair Silverthorn Library
Applied Dec 21, 2016 · issued Jun 5, 2017 · Permit 16 269716 PLB
- Closed
Addition or alteration · Multiple projects
Interior alterations limited to the front vestibule, replacement of an existing store front, replacement of 2nd floor windows to Toronto Public Library.
Applied Aug 6, 2008 · issued Sep 5, 2008 · completed Feb 26, 2018 · Permit 08 190706 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
- Under review
45 storeys · 1,151 homes · Mixed use
320 m away · Site plan · Under review · filed Apr 29, 2022
- Under review
27 storeys · 321 homes · Residential
370 m away · Site plan · Under review · filed Apr 29, 2022
- Under review
21 storeys · 330 homes · Mixed use
420 m away · Rezoning · Under review · filed Dec 18, 2025
- Under review
17 storeys · 258 homes · Mixed use
420 m away · Site plan · Under review · filed Jun 24, 2022
- Under review
39 storeys · 1,951 homes · Mixed use
420 m away · Site plan · Under review · filed Apr 25, 2022
- Under review
20-36 Caledonia Road and 1500-1536 St Clair Avenue West
17 storeys · Mixed use
450 m away · Condominium · Under review · filed Oct 25, 2021
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.
240 m away · filed Apr 24, 2026 · Approved
333 Old Weston Rd · Minor variance
To legalize and to maintain the existing one-and-one-half-storey detached dwelling (municipally known as 333 Old Weston Road), and to reconstruct the existing rear one-storey addition, and side (south) ground floor deck and stairs, which were constructed without an authorized building permit. Also, to reconstruct the front porch stairs, and to convert the basement into a second dwelling unit. The existing second residential building on this lot (municipally known as 102 Ford Street), and the existing Place of Worship (municipally known as 331 Old Weston Road) will be maintained and unaltered.…
220 m away · filed Mar 31, 2026 · Approved
47 Cloverdale Rd · Minor variance
To alter the existing one-storey ancillary building (detached garage), in the rear yard, abutting Cloverdale Road, by constructing a complete second storey addition (to contain one garden suite). There will be a total of two residential dwelling units on this lot (one unit within the main dwelling and one unit within the ancillary building), and two parking spaces within the altered ancillary building.
150 m away · filed Jul 30, 2025 · 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).
160 m away · filed Jun 24, 2025 · Approved
67 Hounslow Heath Rd · Minor variance
To construct a one-storey detached ancillary building (one-car garage) in the rear yard of the property, abutting the laneway.
160 m away · filed Jun 16, 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).
240 m away · filed Jun 13, 2025 · Approved
49 Hounslow Heath Rd · Minor variance
To construct a new one-storey ancillary building (for office use space, and a washroom) in the rear yard, abutting the laneway. This current application is necessitated to seek further approval for the removal of the lawfully existing parking space on-site (as cited below) from the previously approved Minor Variance Decision (under File Number A0927/24TEY).
190 m away · filed Jun 9, 2025 · Approved
49 Hounslow Heath Rd · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a front basement walkout, a rear ground floor addition, a rear ground floor deck with stairs, and a rear second floor balcony. Also, to construct a one-storey ancillary building (for office space with a washroom) in the rear yard. The existing garage will be demolished. The main dwelling will have a total of three residential dwelling units (triplex) on this lot.
190 m away · filed Oct 23, 2024 · 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.