Toronto address · Ward 14, Toronto-Danforth
7 Leslie St
The City of Toronto has 33 building permits since 2017 (19 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
Plumbing
REV Plumbing - Proposed for ABTP WWTP South Entrance Gate Security Kiosk connection to water system c/w RP backflow preventer & TERV. Proposal to construct a new 3 storey building to be located on the site of an existing Water Treatment Facility (UV Disinfection Facility) - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Oct 17, 2025 · issued Nov 24, 2025 · Permit 17 233454 PLB (revision 01)
- Inspections under way
Heating and ventilation
HVAC - Proposal to legalize existing multiple accessory buildings (temporary prefabricated structures) on the lot
Applied May 16, 2024 · issued Apr 10, 2025 · Permit 24 149613 HVA
- Inspections under way
Plumbing
Plumbing - Proposal to legalize existing multiple accessory buildings (temporary prefabricated structures) on the lot
Applied May 16, 2024 · issued Apr 10, 2025 · Permit 24 149613 PLB
- Inspections under way
New building
Proposal to legalize existing multiple accessory buildings (temporary prefabricated structures) on the lot
Applied May 16, 2024 · issued Apr 10, 2025 · Permit 24 149613 BLD
- Permit issued
Addition or alteration · Interior alterations
Z BUILDING - Proposal to reinforce Boiler Room Floor and Loading Dock Area, including removing and replacing fireproofing, removal of process boilers and related systems, closing exterior wall where steam boiler breeching pipe exited the building. Convenience address is 9 Leslie St.
Applied Sep 8, 2021 · issued Feb 2, 2022 · Permit 21 209440 BLD
- Closed
Addition or alteration · Interior alterations
To modify original service platform No. 2 in screen building into five small platforms complete with access ladder - Ashbridges Bay Treatment Plant
Applied Nov 18, 2020 · issued Dec 17, 2020 · completed Mar 24, 2022 · Permit 20 219583 BLD
- Closed
Addition or alteration · Other
REV01: Revision to permit 19-124789 BLD as per bubbled area.Proposal to construct a double wide trailer to be used as offices and training rooms at existing water treatment plant - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Jul 30, 2019 · issued Oct 1, 2019 · completed Oct 7, 2019 · Permit 19 124789 BLD (revision 01)
- Revision issued
Drains and site services · Inside and outside drains
Revision 01 - shifted floor drains, vent risers and SAN lineProposal to excavate for screen building, substructure construction, shafts and tunneling. This application specifically refers to Screen Building plumbing drains in ground floor slab - "Ashbridges Bay Treatment Plant". Convenience addresses include 7 and 9 Leslie St.
Applied Jun 25, 2019 · issued Aug 16, 2019 · Permit 19 140271 STS (revision 01)
- Cancelled
Addition or alteration · Multiple projects
Proposal for new construction in the 4 following areas: Area 1 = De-watering Building - replacement of existing roofing and new platformArea 2 = Polymer Facility - extension of existing mezzanine, replace roof and roofing systemArea 3 = Polymer Unloading Bay - 2 storey office addition to Pelletizer building and replace roofing Area 4 = Sludge equalization tanks - addition of new electrical room above tanks.
Applied May 30, 2019 · issued Jun 23, 2020 · completed Jun 16, 2026 · Permit 19 162719 BLD
- Cancelled
Plumbing
Plumbing - Proposal for new construction in the 4 following areas: Area 1 = De-watering Building - replacement of existing roofing and new platformArea 2 = Polymer Facility - extension of existing mezzanine, replace roof and roofing systemArea 3 = Polymer Unloading Bay - 2 storey office addition to Pelletizer building and replace roofing Area 4 = Sludge equalization tanks - addition of new electrical room above tanks.
Applied May 30, 2019 · issued Jun 23, 2020 · completed Jun 16, 2026 · Permit 19 162719 PLB
- Cancelled
Heating and ventilation
HVAC - Proposal for new construction in the 4 following areas: Area 1 = De-watering Building - replacement of existing roofing and new platformArea 2 = Polymer Facility - extension of existing mezzanine, replace roof and roofing systemArea 3 = Polymer Unloading Bay - 2 storey office addition to Pelletizer building and replace roofing Area 4 = Sludge equalization tanks - addition of new electrical room above tanks.
Applied May 30, 2019 · issued Jun 23, 2020 · completed Jun 16, 2026 · Permit 19 162719 HVA
- Cancelled
Drains and site services · Inside and outside drains
Drain - Proposal for new construction in the 4 following areas: Area 1 = De-watering Building - replacement of existing roofing and new platformArea 2 = Polymer Facility - extension of existing mezzanine, replace roof and roofing systemArea 3 = Polymer Unloading Bay - 2 storey office addition to Pelletizer building and replace roofing Area 4 = Sludge equalization tanks - addition of new electrical room above tanks.
Applied May 30, 2019 · issued Jun 23, 2020 · completed Jun 16, 2026 · Permit 19 162719 STS
Show 21 more permits
- Permit issued
Drains and site services · Inside and outside drains
Proposal to excavate for screen building, substructure construction, shafts and tunneling. This application specifically refers to Screen Building plumbing drains in ground floor slab - "Ashbridges Bay Treatment Plant". Convenience addresses include 7 and 9 Leslie St.
Applied Apr 15, 2019 · issued May 9, 2019 · Permit 19 140271 DRN
- Closed
Addition or alteration · Other
Proposal to construct a double wide trailer to be used as offices and training rooms at existing water treatment plant - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Mar 12, 2019 · issued May 27, 2019 · completed Oct 7, 2019 · Permit 19 124789 BLD
- Closed
Plumbing
Plumbing - Proposal to construct a double wide trailer to be used as offices and training rooms at existing water treatment plant - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Mar 12, 2019 · issued May 27, 2019 · completed Sep 4, 2019 · Permit 19 124789 PLB
- Closed
Heating and ventilation
HVAC - Proposal to construct a double wide trailer to be used as offices and training rooms at existing water treatment plant - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Mar 12, 2019 · issued May 27, 2019 · completed Aug 30, 2019 · Permit 19 124789 HVA
- Inspections under way
Drains and site services · Site service
Proposal to relocate existing fire main to 2m below existing road surface. Convenience address is 9 Leslie St.
Applied Apr 18, 2018 · issued Apr 26, 2018 · Permit 18 145415 STS
- Inspections under way
Drains and site services
Drain - Proposal to construct a new 3 storey building to be located on the site of an existing Water Treatment Facility (UV Disinfection Facility) - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Sep 26, 2017 · issued Mar 7, 2018 · Permit 17 233454 DRN
- Inspections under way
Drains and site services · Inside and outside drains
Drain - Proposal to construct a new 3 storey building to be located on the site of an existing Water Treatment Facility (UV Disinfection Facility) - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Sep 15, 2017 · issued Mar 7, 2018 · Permit 17 233454 STS
- Inspections under way
Heating and ventilation
HVAC - Proposal to construct a new 3 storey building to be located on the site of an existing Water Treatment Facility (UV Disinfection Facility) - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Sep 15, 2017 · issued Mar 7, 2018 · Permit 17 233454 HVA
- Inspections under way
Plumbing
Plumbing - Proposal to construct a new 3 storey building to be located on the site of an existing Water Treatment Facility (UV Disinfection Facility) - "Ashbridges Bay Treatment Plant"Convenience address is 9 Leslie St.
Applied Sep 15, 2017 · issued Mar 7, 2018 · Permit 17 233454 PLB
- Inspections under way
Addition or alteration · Interior alterations
Proposal to create a platform for maintenance access for crane repair
Applied Apr 24, 2017 · issued Jun 2, 2017 · Permit 17 148370 BLD
- Closed
Heating and ventilation
HVAC - Proposal for interrior alterations to tunnels "D" "F", "Ashbridges Bay Treatment Plant"
Applied Mar 21, 2016 · issued Jul 12, 2016 · completed Apr 9, 2018 · Permit 16 129821 HVA
- Closed
New building
Proposal to install 1 new pre fabricated modular control room to be located on the site of an existing industrial building. Convenience address is 9 Leslie St.
Applied Mar 18, 2016 · issued Jun 20, 2016 · completed Nov 13, 2017 · Permit 16 129650 BLD
- Inspections under way
Addition or alteration · Interior alterations
Proposal for interrior alterations to tunnels "D" "F", "Ashbridges Bay Treatment Plant"
Applied Mar 18, 2016 · issued Jul 12, 2016 · Permit 16 129821 BLD
- Inspections under way
Plumbing
Plumbing - Proposal for interrior alterations to tunnels "D" "F", "Ashbridges Bay Treatment Plant"
Applied Mar 18, 2016 · issued Jul 12, 2016 · Permit 16 129821 PLB
- Closed
Heating and ventilation
HVAC - Proposal for interior alterations to washrooms at 9 Leslie St in the Training Center. Proposal includes HVAC and PLB.
Applied Nov 27, 2013 · issued Jan 13, 2014 · completed Oct 31, 2025 · Permit 13 270776 HVA
- Inspections under way
Plumbing
Plumbing - Proposal for interior alterations to washrooms at 9 Leslie St in the Training Center. Proposal includes HVAC and PLB.
Applied Nov 27, 2013 · issued Jan 13, 2014 · Permit 13 270776 PLB
- Inspections under way
Addition or alteration · Interior alterations
Proposal for interior alterations to washrooms at 9 Leslie St in the Training Center. Proposal includes HVAC and PLB.
Applied Nov 27, 2013 · issued Dec 19, 2013 · Permit 13 270776 BLD
- Inspections under way
Plumbing
Plumbing - Refurbishing of digesters 1-12 at the Ashdridges Bay Treatment Plant. Refer to dwg #1001-2004-02-A002 for the design statement. - Multiple Projects
Applied Jun 22, 2004 · issued Feb 20, 2006 · Permit 04 149324 PLB
- Inspections under way
Heating and ventilation
HVAC - Refurbishing of digesters 1-12 at the Ashdridges Bay Treatment Plant. Refer to dwg #1001-2004-02-A002 for the design statement. - Multiple Projects
Applied Jun 22, 2004 · issued Aug 16, 2004 · Permit 04 149324 HVA
- Closed (dormant)
Heating and ventilation
HVAC - To make interior alterations to ground floor and mezzanine (office space)PRESENT USE: STORAGE YARD (METRO ROADS AND TRAFFIC)PROPOSED USE: SAME - Interior Alterations
Applied Feb 16, 2004 · issued Feb 23, 2004 · completed Jun 8, 2026 · Permit 03 195203 HVA
- Closed (dormant)
Addition or alteration · Re-Roofing/Re-Cladding
make structural roofing repairs on the existing salt domes and repairs to the front entrance.
Applied Jul 17, 2003 · issued Jul 23, 2003 · completed Jun 8, 2026 · Permit 03 157163 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 · Other
To permit three one-storey prefabricated buildings (Buildings 1, 2, and 3), on this site.
Decision: Approved (hearing Mar 5, 2025)
Filed Sep 5, 2024 · File A1071/24TEY
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
None on file since 2017.
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.