Toronto address · Ward 10, Spadina-Fort York

446 Lakeshore Ave

Island Filtration Plant

The City of Toronto has 25 building permits since 2017 (20 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.

Fire and security upgrade
FS - Sprinkler Shop Drawing - Construction of a new building that will house ultraviolet (UV) disinfection equipment for water treatment and residual management equipment for process discharge handling. A second building will be constructed to house electrical power equipment and control panels.
Applied Jun 26, 2025 · Permit 24 153786 FSU
Application on hold
Heating and ventilation
HVAC - Construction of a new building that will house ultraviolet (UV) disinfection equipment for water treatment and residual management equipment for process discharge handling. A second building will be constructed to house electrical power equipment and control panels.
Applied Jul 4, 2024 · issued Oct 10, 2025 · Permit 24 153786 HVA
Permit issued
Plumbing
Plumbing - Construction of a new building that will house ultraviolet (UV) disinfection equipment for water treatment and residual management equipment for process discharge handling. A second building will be constructed to house electrical power equipment and control panels.
Applied May 24, 2024 · issued Oct 10, 2025 · Permit 24 153786 PLB
Permit issued
New building
Construction of a new building that will house ultraviolet (UV) disinfection equipment for water treatment and residual management equipment for process discharge handling. A second building will be constructed to house electrical power equipment and control panels.
Applied May 24, 2024 · issued Oct 10, 2025 · Permit 24 153786 BLD
Permit issued
Drains and site services
Drain - Construction of a new building that will house ultraviolet (UV) disinfection equipment for water treatment and residual management equipment for process discharge handling. A second building will be constructed to house electrical power equipment and control panels.
Applied May 24, 2024 · issued Oct 10, 2025 · Permit 24 153786 DRN
Permit issued
Drains and site services · Site service
Proposed storm trench drain and storm pipe connection to existing catch basin.
Applied Mar 7, 2024 · issued Apr 18, 2024 · Permit 24 122908 STS
Permit issued
Designated structure · Retaining wall
Proposal to extend the lake existing barrier wall with independent section tied into existing wall - Water Treatment Plant
Applied Mar 1, 2024 · issued Apr 3, 2024 · Permit 24 121079 DST
Permit issued
Heating and ventilation
HVAC - Building extension on the east wall of the existing raw water intake building to accomodate new chlorination system and associated plumbing/drainage, HVAC and electrical equipment.New sump pit, sump pump and sanitary connection from the new 4th Raw Water Intake Chamber to the existing Raw Water Intake Chamber sump pit.Heating equipment in the new 4th Raw Water Intake Chamber.
Applied Jun 2, 2022 · issued Nov 1, 2022 · Permit 22 155843 HVA
Inspections under way
Plumbing
Plumbing - Building extension on the east wall of the existing raw water intake building to accomodate new chlorination system and associated plumbing/drainage, HVAC and electrical equipment.New sump pit, sump pump and sanitary connection from the new 4th Raw Water Intake Chamber to the existing Raw Water Intake Chamber sump pit.Heating equipment in the new 4th Raw Water Intake Chamber.
Applied Jun 2, 2022 · issued Nov 1, 2022 · Permit 22 155843 PLB
Inspections under way
Addition or alteration · Other
Building extension on the east wall of the existing raw water intake building to accomodate new chlorination system and associated plumbing/drainage, HVAC and electrical equipment.New sump pit, sump pump and sanitary connection from the new 4th Raw Water Intake Chamber to the existing Raw Water Intake Chamber sump pit.Heating equipment in the new 4th Raw Water Intake Chamber.
Applied Jun 2, 2022 · issued Nov 1, 2022 · Permit 22 155843 BLD
Inspections under way
Addition or alteration · Interior alterations
Upgrades of Toronto Water facilities server/computer room and supporting infrastructructure
Applied Dec 3, 2021 · issued Mar 1, 2022 · Permit 21 244801 BLD
Permit issued
Heating and ventilation
HVAC - Upgrades of Toronto Water facilities server/computer room and supporting infrastructructure
Applied Dec 3, 2021 · issued Mar 1, 2022 · Permit 21 244801 HVA
Permit issued

Show 13 more permits

Heating and ventilation · Other
Upgrades to the existing scrubber discharge stack connected to the discharge of the gaseous chemical scrubber in the Chlorine Building. Upgrades will result in the installation of a new stackhead extension (with sampling port) that prevents rain from entering the stack, while providing an unimpeded path for the gaseous discharge from the scrubber - Toronto Island Water Treatment Plant
Applied Aug 18, 2021 · issued Oct 29, 2021 · completed Jun 7, 2022 · Permit 21 200326 MSA
Closed
Addition or alteration · Interior alterations
Proposed replacement of existing room partition walls and partial structural replacement of existing floor slab on main level.
Applied Apr 9, 2019 · issued Jun 5, 2019 · Permit 19 137490 BLD
Permit issued
Addition or alteration · Interior alterations
Proposed interior alterations and HVAC system upgrades for an existing Toronto Water Treatment Plant Facility.
Applied Apr 8, 2019 · issued Jun 18, 2019 · Permit 19 137253 BLD
Inspections under way
Heating and ventilation
HVAC - Proposed interior alterations and HVAC system upgrades for an existing Toronto Water Treatment Plant Facility.
Applied Apr 8, 2019 · issued Jun 18, 2019 · Permit 19 137253 HVA
Inspections under way
Plumbing · Backflow prevention devices (Water only)
Rev 01: Revised drawings as per O.B.C.Various cross connection upgrades at the Island Water Treatment Plant:1. Install Premise Isolation on the existing 300 mm dia. Island Water Treatment Plant Domestic Cold Water supply line (two RP BFP's installed in true parallel for ensured un-interruption of flow).2. Additional internal premise protection upgrades at the Island Water Treatment Plant.
Applied Dec 9, 2015 · issued Jan 6, 2016 · completed Jan 12, 2018 · Permit 15 239184 PSA (revision 01)
Closed
Heating and ventilation · Other
REVISION - to add the structural details for the tankReplacement of existing vehicle fueling station with new fueling station, including new tanks and dispenser for gasoline, clear diesel and dyed diesel. Addition of remote dispensor at dock for dispensing gasoline to fuel boats.
Applied Oct 28, 2015 · issued Nov 25, 2015 · Permit 15 221288 MSA (revision 01)
Revision issued
Plumbing · Backflow prevention devices (Water only)
Various cross connection upgrades at the Island Water Treatment Plant:1. Install Premise Isolation on the existing 300 mm dia. Island Water Treatment Plant Domestic Cold Water supply line (two RP BFP's installed in true parallel for ensured un-interruption of flow).2. Additional internal premise protection upgrades at the Island Water Treatment Plant.
Applied Oct 19, 2015 · issued Nov 16, 2015 · completed Jan 12, 2018 · Permit 15 239184 PSA
Closed
Heating and ventilation · Other
Replacement of existing vehicle fueling station with new fueling station, including new tanks and dispenser for gasoline, clear diesel and dyed diesel. Addition of remote dispensor at dock for dispensing gasoline to fuel boats.
Applied Sep 11, 2015 · issued Oct 14, 2015 · Permit 15 221288 MSA
Permit issued
Addition or alteration · Other
Building permit for structural repairs and reinforcement for HVAC work and structural support for new equipment.See 08 181588MSA for mechanical permit
Applied Jul 14, 2008 · issued Dec 3, 2008 · completed Jun 8, 2026 · Permit 08 181591 BLD
Closed (dormant)
Heating and ventilation · Other
Permit to install 6 new dehumidifiers to existing Water treatment plant on Toronto Island.
Applied Jul 14, 2008 · issued Nov 14, 2008 · Permit 08 181588 MSA
Inspections under way
Plumbing
Plumbing - Interior alterations to water filtration plant. - Toronto Island
Applied Jun 5, 2007 · issued Nov 26, 2007 · completed Jun 8, 2026 · Permit 07 228329 PLB
Closed (dormant)
Heating and ventilation
HVAC - Interior alterations to water filtration plant. - Toronto Island
Applied Jun 5, 2007 · issued Jun 23, 2025 · Permit 07 228329 HVA
Permit issued
Addition or alteration · Interior alterations
Interior alterations to water filtration plant. - Toronto IslandAWAITING JOURNAL ENTRY APPROVAL
Applied Jun 5, 2007 · issued Jun 15, 2007 · Permit 07 228329 BLD
Permit issued

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.

Minor variance · New NR building
Filed Sep 25, 2024 · File A0860/24TEY
Application withdrawn

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.

Everything planned in Spadina-Fort York

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.