Toronto address · Ward 9, Davenport
551 Gladstone Ave
The City of Toronto has 8 building permits since 2017 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.
- Closed
Plumbing
Plumbing - Interior alterations to convert second floor into a separate self-contained unit - two unit dwelling
Applied Dec 16, 2024 · issued Dec 17, 2024 · completed May 28, 2025 · Permit 24 250807 PLB
- Closed
Small residential project · Interior alterations
Interior alterations to convert second floor into a separate self-contained unit - two unit dwelling
Applied Dec 16, 2024 · issued Dec 17, 2024 · completed May 28, 2025 · 1 home added · Permit 24 250807 BLD
- Closed
Heating and ventilation
HVAC - Rear one storey ground floor addition and interior washroom addition.
Applied Aug 15, 2024 · issued Aug 19, 2024 · completed Dec 19, 2024 · Permit 21 178700 HVA
- Closed
Small residential project · Multiple projects
REVISION 2 - underpinning the existing part of the house foundations, repairing the foundation walls of the existing building, and addressing the basement walkout stairsRear one storey ground floor addition and interior washroom addition.
Applied Feb 8, 2024 · issued Mar 15, 2024 · completed Mar 11, 2025 · Permit 21 178700 BLD (revision 02)
- Closed
Small residential project · Other
Proposal for a Rooftop Solar Panel Installation to the existing SFD
Applied Jul 21, 2023 · issued Jul 27, 2023 · completed Nov 13, 2023 · Permit 23 178092 BLD
- Closed
Small residential project · Multiple projects
REVISION - construct a 2nd floor addition above the proposed ground floor addition with new full basement.Rear one storey ground floor addition and interior washroom addition.
Applied Mar 8, 2023 · issued Apr 4, 2023 · completed Mar 11, 2025 · Permit 21 178700 BLD (revision 01)
- Closed
Small residential project · Multiple projects
Rear one storey ground floor addition and interior washroom addition.
Applied Jul 2, 2021 · issued Nov 24, 2022 · completed Mar 11, 2025 · Permit 21 178700 BLD
- Closed
Plumbing
Plumbing - Rear one storey ground floor addition and interior washroom addition.
Applied Jul 2, 2021 · issued Nov 24, 2022 · completed Jan 8, 2025 · Permit 21 178700 PLB
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 · R addition
To alter the existing two-storey semi-detached dwelling by constructing a rear one-storey addition, also to extend the existing rear second storey deck.
Decision: Approved (hearing Oct 19, 2022)
Filed Mar 17, 2022 · File A0375/22TEY
What’s planned nearby
Development sites within 500 m
- Under review
1141 Bloor Street West, 90 Croatia Street and 980 Dufferin Street
22 storeys · 264 homes · Mixed use
250 m away · Site plan · Under review · filed Feb 27, 2026
- Approved
- Approved
1167-1175 Bloor Street West, 34-42 Brock Crescent and 90 Croatia Street
14 storeys · 52 homes · Mixed use
410 m away · Rezoning · Approved · filed Feb 9, 2026
Neighbours’ Committee of Adjustment files within 250 m
529 Gladstone Ave · Minor variance
To construct a new three-storey detached building (houseplex) with a front basement walkout, a front porch with stairs, three side (south) covered entrances with stairs, a rear entrance with stairs, and front and rear third storey balconies. Also, to construct a new rear two-storey detached ancillary building (containing one garden suite) with a corner (northeast) patio. There will be a total of seven residential dwelling units on this lot (six dwelling units within the main building, and one dwelling unit within the ancillary building).
160 m away · filed Jun 29, 2026 · Approved
991 Dufferin St · Minor variance
To construct a new rear one-storey detached ancillary building (garage containing one parking space and storage) and driveway in the rear yard, abutting the laneway.
230 m away · filed Jun 3, 2026 · Approved
1045 Dufferin St · Minor variance
To construct a new three-storey building (utility (switchgear) facility). There will be two front yard parking spaces. A Site Plan Control application (File Number 25 166590 STE 09 SA) is currently under review.
110 m away · filed Feb 13, 2026 · Approved
999 Dufferin St · Minor variance
To construct a new three-storey detached residential building containing six dwelling units (sixplex), with front and rear basement walkouts, front and rear ground floor porches with stairs, front second and third storey balconies, a rear second storey balcony, and a rooftop patio accessed by two rooftop stair enclosures. The existing rear detached garage, abutting the lane, will be demolished.
200 m away · filed Dec 16, 2025 · Approved
991 Dufferin St · Minor variance
To construct a new three-storey detached dwelling with a front porch, a front third level balcony, a rear ground level deck, a rear basement walkout, and a rear third level deck.
230 m away · filed Jul 22, 2025 · Approved
1081 Dufferin St · Minor variance
To construct a new one-storey detached ancillary building (two-car garage), in the rear yard of the existing two-storey detached dwelling.
180 m away · filed May 20, 2025 · Approved
57 Bartlett Ave · Minor variance
To alter the existing two-storey townhouse dwelling by constructing a rear second storey addition (cantilevered at the rear portion).
150 m away · filed Mar 19, 2025 · Approved
79 Bartlett Ave · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a rear walkway. Also, to alter the existing one-storey ancillary building (rear detached garage, abutting the laneway) by constructing a complete second storey addition for one laneway suite. There will be a total of two residential dwelling units on this lot (one in the main dwelling and one in the ancillary building).
220 m away · filed Oct 24, 2024 · 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.