Toronto address · Ward 12, Toronto-St. Paul's
135 St Clair Ave W
The City of Toronto has 34 building permits since 2017 (20 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.
- Permit issued
Demolition
Proposal to demolish the existing 14 storey office building.See 25 269831 STE 12 SA for future development.
Applied May 14, 2026 · issued Aug 14, 2026 · Permit 26 160883 DEM
- Closed
Fire and security upgrade · Fire alarm
Fire alarm system upgrade
Applied Feb 6, 2023 · issued Mar 7, 2023 · completed Feb 6, 2025 · Permit 23 110638 FSU
- Closed
Addition or alteration · Other
Proposal for exterior alterations for the installation of 4 additional davit bases on the roof to be used for a swing stage, adding to the existing anchor system (other davit bases) already there, to provide access at the corner of the building (that has cooling tower) for replacing a window & future window cleaning or cladding repair. [Infrastructure Ontario]
Applied Sep 7, 2022 · issued Jan 5, 2023 · completed Oct 17, 2023 · Permit 22 200470 BLD
- Closed
Plumbing
Plumbing - Interior alterations to remove and replace entrance revolving door and hinged door assemblies, work includes, floor drain repairs
Applied Jul 8, 2020 · issued Aug 14, 2020 · completed Aug 20, 2026 · Permit 20 164611 PLB
- Inspections under way
Addition or alteration · Interior alterations
Proposal for interior alterations to remove and replace entrance revolving door and hinged door assemblies, work includes, floor drain repairs.
Applied Jul 8, 2020 · issued Jul 20, 2020 · Permit 20 164611 BLD
- Permit issued
Heating and ventilation · Alter: Boiler/Furnace/AC replacement
Proposal to replace the boiler in an existing office building - Ministry of the Environment
Applied Mar 2, 2020 · issued Mar 9, 2020 · Permit 20 120787 MSA
- Closed
Fire and security upgrade · Standpipes
Proposed standpipe system replacement and related components throughout the existing office building. *Ministry of Environment, Conservation and Parks Headquarters*
Applied Jan 13, 2020 · issued Feb 11, 2020 · completed Mar 3, 2021 · Permit 20 104070 FSU
- Closed
Fire and security upgrade · Sprinklers
Proposed replacement of wet sprinkler system in the basement of an existing office building. *Ministry of Environment, Conservation and Parks Headquarters*
Applied Jan 13, 2020 · issued Feb 12, 2020 · completed Mar 3, 2021 · Permit 20 104053 FSU
- Closed
Addition or alteration · Other
Proposal to remove and replace existing cooling tower support frame on lower roof and steel catwalk due to corrosion. New support frame and catwalk to match existing.
Applied Dec 12, 2019 · issued Feb 14, 2020 · completed Aug 14, 2020 · Permit 19 260482 BLD
- Closed
Fire and security upgrade · Fire alarm
Proposal to upgrade the fire alarm system throughout an existing office building.
Applied Oct 8, 2019 · issued Nov 7, 2019 · completed Feb 6, 2025 · Permit 19 233727 FSU
- Closed
Addition or alteration · Balcony/Guard repairs
Proposal for guard on roof top of existing office building.
Applied Aug 23, 2017 · issued Oct 30, 2017 · completed Jan 10, 2018 · Permit 17 221656 BLD
- Closed
Addition or alteration · Interior alterations
interior alterations to 8th floor office kitchenette
Applied Oct 10, 2015 · issued Oct 27, 2015 · completed Jan 19, 2017 · Permit 15 235957 BLD
Show 22 more permits
- Permit issued
Heating and ventilation
HVAC - Interior alterations to offices on the 15th floor - Infrastructure Ontario - Ministry of Environment
Applied Feb 3, 2015 · issued Mar 9, 2015 · Permit 15 111117 HVA
- Permit issued
Addition or alteration · Interior alterations
Interior alterations to offices on the 15th floor - Infrastructure Ontario - Ministry of Environment
Applied Feb 2, 2015 · issued Feb 24, 2015 · Permit 15 111117 BLD
- Closed
Plumbing
Plumbing - Proposal for interior alterations on basement, first, second, third, fourth, fifth, and seventh floors for offices for "Infrastructure Ontario - Ministry of Environment" (2842m2).
Applied Dec 23, 2014 · issued Jan 20, 2015 · completed Aug 20, 2026 · Permit 14 267362 PLB
- Closed
Addition or alteration · Interior alterations
Proposal for interior alterations on basement, first, second, third, fourth, fifth, and seventh floors for offices for "Infrastructure Ontario - Ministry of Environment" (2842m2).
Applied Dec 23, 2014 · issued Jan 9, 2015 · completed May 19, 2026 · Permit 14 267362 BLD
- Inspections under way
Heating and ventilation
HVAC - Proposal for interior alterations on basement, first, second, third, fourth, fifth, and seventh floors for offices for "Infrastructure Ontario - Ministry of Environment" (2842m2).
Applied Dec 23, 2014 · issued Jan 20, 2015 · Permit 14 267362 HVA
- Inspections under way
Addition or alteration · Interior alterations
Proposed renovation of fifth floor office space (6.5m2) for the Ministry Of The Environment
Applied Jan 20, 2014 · issued May 30, 2014 · Permit 14 106863 BLD
- Permit issued
Heating and ventilation
HVAC - Proposed renovation of fifth floor office space (6.5m2) for the Ministry Of The Environment
Applied Jan 20, 2014 · issued May 30, 2014 · Permit 14 106863 HVA
- Inspections under way
Addition or alteration · Interior alterations
Proposal for interior alterations to the 6, 8, 9, & 10th floors of existing office building. "Ministry of the Environment"
Applied Oct 24, 2013 · issued Nov 7, 2013 · Permit 13 255626 BLD
- Permit issued
Heating and ventilation
HVAC - Proposal for interior alterations to the 6, 8, 9, & 10th floors of existing office building. "Ministry of the Environment"
Applied Oct 24, 2013 · issued Nov 21, 2013 · Permit 13 255626 HVA
- Closed
Plumbing
Plumbing - Proposal for interior alterations to existing office space on the 15th floor - CB Richard Ellis.
Applied May 15, 2013 · issued Jun 12, 2013 · completed Mar 12, 2026 · Permit 13 169451 PLB
- Inspections under way
Addition or alteration · Interior alterations
Proposal for interior alterations to existing office space on the 15th floor - CB Richard Ellis.
Applied May 15, 2013 · issued May 17, 2013 · Permit 13 169451 BLD
- Closed
Heating and ventilation
HVAC - Proposal for interior alterations to existing office space on the 15th floor - CB Richard Ellis.
Applied May 15, 2013 · issued Jun 12, 2013 · completed Mar 9, 2026 · Permit 13 169451 HVA
- Inspections under way
Addition or alteration · Interior alterations
Proposal for interior alterations to 7th floor office space. Tenant is Ministry of the Environment.
Applied Aug 8, 2011 · issued Aug 15, 2011 · Permit 11 252835 BLD
- Permit issued
Heating and ventilation
HVAC - Proposal for interior alterations to 7th floor office space. Tenant is Ministry of the Environment.
Applied Aug 8, 2011 · issued Sep 6, 2011 · Permit 11 252835 HVA
- Closed (dormant)
Heating and ventilation
HVAC - Interior alterations to portion of existing Office on 3rd floor. ministry of Environment. Multi Tenant Floor
Applied Jul 22, 2008 · issued Aug 15, 2008 · completed Jun 8, 2026 · Permit 08 184772 HVA
- Inspections under way
Addition or alteration · Other
Fire Seperation/Fire Stopping to Mech shaft to all levels, work to existing Mech room in below grade Parking Level garage. Ministry of Environment Building
Applied Jan 25, 2008 · issued Mar 14, 2008 · Permit 08 106658 BLD
- Inspections under way
Heating and ventilation
HVAC - Fire Seperation/Fire Stopping to Mech shaft to all levels, work to existing Mech room in below grade Parking Level garage. Ministry of Environment Building
Applied Jan 25, 2008 · issued Mar 14, 2008 · Permit 08 106658 HVA
- Inspections under way
Fire and security upgrade · Electromagnetic locks
1 Mag lock on the penthouse level
Applied Oct 19, 2006 · issued Nov 13, 2006 · Permit 06 185167 FSU
- Inspections under way
Addition or alteration · Interior alterations
make interior alterations to portion of ground floor lobby
Applied Sep 25, 2002 · issued Oct 23, 2002 · Permit 02 175974 BLD
- Inspections under way
Addition or alteration · Interior alterations
Install partitions on portions of the 3rd, 5th to 8th floors (inclusive), 11th, 14th & 15 floors.Tenant: Ministry of the Environment
Applied Apr 10, 2002 · issued May 2, 2002 · Permit 02 125281 BLD
- Inspections under way
Addition or alteration · Other
Make repairs to underground parking garage roof, construct barrier free access ramp on West side of the property, repair soffit at first floor level at all elevations and construct pedestrian bridge on North side.
Applied Jun 1, 2001 · issued Aug 13, 2001 · Permit 01 143215 CMB
- Inspections under way
Non-residential building permit · Alteration to existing building
make interior alterations to portion of 9th floor existing office. tenant: ministry of environment.
Applied Jan 14, 2000 · issued Jan 20, 2000 · Permit 00 121167 CMB
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
49 storeys · Mixed use
20 m away · Site plan · Under review · filed Dec 24, 2025
- Under review
175-195 St Clair Avenue West and 273 Poplar Plains Road
13 storeys · 164 homes · Residential
180 m away · Site plan · Under review · filed Sep 29, 2021
- Under review
169-171 Balmoral Avenue and 438-440 Avenue Road
24 storeys · 223 homes · Residential
260 m away · Site plan · Under review · filed Aug 10, 2022
- Under review
51 storeys · 461 homes · Mixed use
450 m away · Site plan · Under review · filed Sep 7, 2022
Neighbours’ Committee of Adjustment files within 250 m
257 Poplar Plains Rd · Consent
To obtain consent for the technical severance of the property for the purpose of re-establishing two residential lots which merged on title.
210 m away · filed Oct 15, 2025 · Approved
18 Foxbar Rd · Minor variance
To alter the existing two-and-one-half-storey detached dwelling by constructing a partially enclosed front porch with a canopy and stairs, and a rear covered (trellis) deck with stairs. Also, to reconstruct the rear third storey dormer.
140 m away · filed May 12, 2025 · Approved
202 St Clair Ave W · Minor variance
To permit four obstructed resident parking spaces within the underground parking garage (located on levels A and B) of the nine-storey residential building (approved under Site Specific Zoning By-law 657-2020), which is currently under construction.
210 m away · filed Aug 16, 2024 · Approved
32 Foxbar Rd · Minor variance
To construct a new three-storey detached dwelling with a front covered porch, a front integral garage, and a rear patio.
160 m away · filed Mar 12, 2024 · Deferred
18 Lynwood Ave · Minor variance
To alter the existing three-storey detached dwelling by enclosing the rear ground floor covered porch for the purpose of a sunroom with a raised terrace.
180 m away · filed May 16, 2022 · Approved
129 St Clair Ave W · Minor variance
To alter the development plan approved under Site Specific By-law 538-2012 for a 28-storey residential building by permitting visitor parking spaces within the existing parking garage to be occupied by users who are not visitors to the building.
70 m away · filed Mar 9, 2021 · Approved
17 Lynwood Ave · Consent
To obtain consent to sever a portion of land for the purpose of a lot addition.
180 m away · filed Dec 18, 2019 · Approved
33 Oriole Rd · Minor variance
To alter the existing three-storey semi-detached dwelling by enlarging the existing rear deck.
220 m away · filed Aug 16, 2017 · 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.