Toronto address · Ward 3, Etobicoke-Lakeshore

166 Hay Ave

The City of Toronto has 11 building permits since 2017 (9 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.

Drains and site services
Rev 01: Revision to basement sanitary drainage system.Drain - Proposed new construction of 4 unit detached dwelling (multiplex)
Applied Sep 17, 2026 · Permit 25 245185 DRN (revision 01)
Not started
Drains and site services
Drain - Proposal for garden suite at rear of property.Main dwelling will be a fourplex (25 245185 BLD 00 NH).
Applied Apr 14, 2026 · issued Apr 16, 2026 · Permit 25 249764 DRN
Inspections under way
Plumbing
Plumbing - Proposal for garden suite at rear of property.Main dwelling will be a fourplex (25 245185 BLD 00 NH).
Applied Apr 14, 2026 · issued Apr 16, 2026 · Permit 25 249764 PLB
Inspections under way
Heating and ventilation
HVAC - Proposal for garden suite at rear of property.Main dwelling will be a fourplex (25 245185 BLD 00 NH).
Applied Feb 6, 2026 · issued Apr 1, 2026 · Permit 25 249764 HVA
Permit issued
Drains and site services
Drain - Proposed new construction of 4 unit detached dwelling (multiplex)
Applied Nov 5, 2025 · issued Dec 24, 2025 · Permit 25 245185 DRN
Inspections under way
Heating and ventilation
HVAC - Proposed new construction of 4 unit detached dwelling (multiplex)
Applied Nov 5, 2025 · issued Dec 24, 2025 · Permit 25 245185 HVA
Permit issued
Small residential project · New laneway / rear yard suite
Proposal for garden suite at rear of property.Main dwelling will be a fourplex (25 245185 BLD 00 NH).
Applied Nov 5, 2025 · issued Apr 1, 2026 · 1 home added · Permit 25 249764 BLD
Inspections under way
Plumbing
Plumbing - Proposed new construction of 4 unit detached dwelling (multiplex)
Applied Nov 5, 2025 · issued Sep 18, 2026 · Permit 25 245185 PLB
Inspections under way
New house · New building
Proposal to demolish existing single family dwelling and construct a new three storey four unit Houseplex, with 2 front main floor entry porches, 1 Rear main floor entry porch + Front and Rear 3rd floor balconies.Rear yard garden suite (25 245185 BLD 00 NH).
Applied Oct 27, 2025 · issued Dec 24, 2025 · 4 homes added · Permit 25 245185 BLD
Inspections under way
Demolition
Proposed demolition of existing SFD detached dwelling to construct new 4 unit detached dwelling.
Applied Oct 27, 2025 · issued Feb 5, 2026 · completed Mar 2, 2026 · 1 home removed · Permit 25 245218 DEM
Closed
Drains and site services · Back water valve (Sewer only)
Back Water Valve (Sewer only)
Applied Jan 19, 2017 · issued Jan 19, 2017 · completed Jan 20, 2017 · Permit 17 106286 DRN
Closed

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

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

139 Hay Ave · Minor variance
To construct a fourplex with an attached garage.
120 m away · filed Oct 2, 2025 · Refused
139 Hay Ave · Consent
To obtain consent to sever the property into two undersized residential lots.
120 m away · filed Oct 2, 2025 · Refused
139 Hay Ave · Minor variance
To construct a fourplex with an attached garage.
120 m away · filed Oct 2, 2025 · Refused
360 Melrose St · Minor variance
To construct a new detached dwelling with an attached garage.
180 m away · filed Sep 26, 2024 · Approved
360 Melrose St · Consent
To obtain consent to sever the property into two undersized residential lots.
180 m away · filed Sep 26, 2024 · Approved
360 Melrose St · Minor variance
To construct a new detached dwelling with an attached garage.
180 m away · filed Sep 26, 2024 · Approved
404 Melrose St · Minor variance
To construct a detached dwelling with an integral garage.
110 m away · filed Apr 28, 2023 · Approved
342 Melrose St · Minor variance
To construct a new detached dwelling with a detached garage,
240 m away · filed Jan 19, 2023 · Approved

Everything planned in Etobicoke-Lakeshore

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.