Toronto address · Ward 5, York South-Weston
51 Lonborough Ave
The City of Toronto has 1 building permit since 2017 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.
- Cancelled
Drains and site services · Back water valve (Sewer only)
Proposal to install a backwater valve on the sanitary line in an existing SFD-detached dwelling.
Applied Feb 23, 2022 · issued Feb 24, 2022 · completed Dec 4, 2025 · Permit 22 116527 DRN
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 appeal
45 storeys · 500 homes · Mixed use
280 m away · Rezoning · Under appeal · filed Mar 4, 2024
Neighbours’ Committee of Adjustment files within 250 m
55 Lonborough Ave · Minor variance
To construct a new fourplex dwelling and a garden suite in the rear yard.
20 m away · filed Jan 2, 2025 · Refused
96 Lonborough Ave · Minor variance
To construct a one storey rear addition, containing two additional residential units. A total of 4 residential units will be provided.
190 m away · filed Mar 7, 2024 · Approved
64 Strathnairn Ave · Minor variance
To construct a new front porch and a detached garage with a rooftop deck in the rear yard.
210 m away · filed Apr 5, 2023 · Approved
63 Lonborough Ave · Minor variance
To construct a second storey addition above the existing dwelling, a two-storey rear addition, a new rear yard balcony and a new detached garage in the rear yard.
60 m away · filed Oct 14, 2022 · Approved
9 Lester Ave · Minor variance
To construct a second storey addition above the existing dwelling and a two-storey rear addition.
230 m away · filed Aug 5, 2021 · Approved
39 Lonborough Ave · Minor variance
To construct a new detached dwelling with second storey rear and front balconies.
60 m away · filed Mar 22, 2021 · Application withdrawn
25 Glenhaven St · Minor variance
To legalize and to maintain a deck in the rear yard.
150 m away · filed Oct 14, 2020 · Application withdrawn
16 Yore Rd · Minor variance
120 m away · filed Oct 5, 2020 · Application withdrawn
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.