Toronto address · Ward 9, Davenport
523 Lansdowne Ave
The City of Toronto has 10 building permits since 2017 (1 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.
- Closed
Heating and ventilation
HVAC - Proposal for a new 2 storey laneway suite.
Applied Aug 4, 2020 · issued Sep 21, 2020 · completed Mar 2, 2021 · Permit 20 143469 HVA
- Closed
Heating and ventilation
HVAC - Proposed basement 2nd dwelling unit in the basement, exterior steel stair and concrete walkout stair to the ex. building.
Applied Jul 10, 2020 · issued Jul 24, 2020 · completed Sep 14, 2020 · Permit 20 157677 HVA
- Closed
Small residential project · Second suite (New)
Proposed basement 2nd dwelling unit in the basement, exterior steel stair and concrete walkout stair to the ex. building.
Applied Jun 18, 2020 · issued Jul 24, 2020 · completed Sep 18, 2020 · 1 home added · Permit 20 157677 BLD
- Closed
Plumbing
Plumbing - Proposed basement 2nd unit, exterior steel stair and concrete walkout stair to the ex. building.
Applied Jun 18, 2020 · issued Jul 24, 2020 · completed Sep 18, 2020 · Permit 20 157677 PLB
- Inspections under way
Heating and ventilation
HVAC - Proposal to convert the existing mixed use building in to a single family dwelling. Underpinning the basement to a depth of 2.5m below grade, street facing facade alterations, and interior alterations.
Applied Jun 18, 2020 · issued Jun 24, 2020 · Permit 20 115358 HVA
- Closed
Small residential project · Multiple projects
Revision #01 - Changes as per attached.Proposal to convert the existing mixed use building in to a single family dwelling. Underpinning the basement to a depth of 2.5m below grade, street facing facade alterations, and interior alterations.
Applied Jun 1, 2020 · issued Jun 17, 2020 · completed Sep 18, 2020 · Permit 20 115358 BLD (revision 01)
- Closed
Plumbing
Plumbing - Proposal for a new 2 storey laneway suite.
Applied May 7, 2020 · issued Sep 21, 2020 · completed Mar 2, 2021 · Permit 20 143469 PLB
- Closed
Small residential project · New laneway / rear yard suite
Proposal for a new 2 storey laneway suite.
Applied May 7, 2020 · issued Sep 21, 2020 · completed Mar 2, 2021 · 1 home added · Permit 20 143469 BLD
- Closed
Plumbing
Plumbing - Proposal to convert the existing mixed use building in to a single family dwelling. Underpinning the basement to a depth of 2.5m below grade, street facing facade alterations, and interior alterations.
Applied Feb 13, 2020 · issued Mar 10, 2020 · completed Sep 14, 2020 · Permit 20 115358 PLB
- Closed
Small residential project · Multiple projects
Proposal to convert the existing mixed use building in to a single family dwelling. Underpinning the basement to a depth of 2.5m below grade, street facing facade alterations, and interior alterations.
Applied Feb 13, 2020 · issued Mar 10, 2020 · completed Sep 18, 2020 · Permit 20 115358 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 alter the existing two-storey detached dwelling by performing interior alterations to create two secondary suites, for a total of three dwelling units.
Decision: Refused (hearing Jul 7, 2021)
Filed Apr 21, 2020 · File A0351/20TEY
What’s planned nearby
Development sites within 500 m
- Under review
510-514 Lansdowne Avenue and 1293-1301 Bloor Street West
28 storeys · Mixed use
290 m away · Site plan · Under review · filed Aug 9, 2022
- Under review
13 storeys · Mixed use
360 m away · Site plan · Under review · filed Apr 22, 2022
- Under review
33 storeys · 634 homes · Mixed use
360 m away · Site plan · Under review · filed Aug 30, 2021
- Under review
31 storeys · 388 homes · Mixed use
380 m away · Site plan · Under review · filed May 30, 2024
- Under review
11 storeys · Non-residential
420 m away · Site plan · Under review · filed Aug 15, 2022
- Under review
21 storeys · 861 homes · Residential
440 m away · Site plan · Under review · filed Nov 7, 2024
Neighbours’ Committee of Adjustment files within 250 m
613 Lansdowne Ave · Minor variance
To convert the existing two-and-one-half-storey detached dwelling into a houseplex containing two residential dwelling units, with a new rear second storey deck with a landing and stairs and a rear basement walkout. Also, to convert the existing two-storey ancillary building (a one-car garage) in the rear yard into an art studio occupying the first and second storeys. There will be a total of two dwelling units on the lot.
200 m away · filed Apr 13, 2026 · Approved
462 Lansdowne Ave · Minor variance
To legalize and to maintain the front one-storey addition (front porch enclosure) with stairs of the existing two-storey semi-detached dwelling, that was constructed without an authorized building permit.
150 m away · filed Mar 20, 2026 · Postponed
204 Margueretta St · Minor variance
To legalize and to maintain the rear and side (south) roof (canopy) which was constructed without an authorized building permit. There will be a total of one residential dwelling unit on this lot (within the existing two-and-one-half storey detached dwelling).
190 m away · filed Sep 10, 2025 · Approved
587 Lansdowne Ave · Minor variance
To alter the existing one-storey detached building (TTC traction power substation) by constructing a rear one-storey addition with a side (south) exterior platform and staircase to access this addition. Also, to replace the existing electrical transformers in the rear yard.
130 m away · filed Jun 13, 2025 · Approved
181 Sterling Rd · Minor variance
To alter the development standards (as approved under Site Specific Zoning By-law 943-2015 (OMB), for a new 17-storey mixed-use building with 266 dwelling units, 2 retail units and 84 parking spaces within 2 levels of below grade garages (Block 4B) which is currently under construction, by reducing vehicular parking space sizes (length and width).
240 m away · filed Jan 24, 2025 · Approved
619 Lansdowne Ave · Minor variance
To alter the existing three-storey detached dwelling by constructing a rear three-storey addition. There will be a total of four residential dwelling units on this lot (three dwelling units currently exist). Also, to permit two tandem parking spaces in the rear yard, abutting the laneway.
220 m away · filed Jul 6, 2024 · Deferred
390 St Clarens Ave · Minor variance
To alter the existing two-storey detached dwelling by constructing a complete third storey addition, a rear two-storey addition with a first storey deck and a third storey deck, and a front second storey deck. This dwelling will have two residential dwelling units (duplex) on this lot.
210 m away · filed Apr 10, 2024 · Approved
181 Sterling Rd · Minor variance
To alter the development standards, as approved under Site Specific Zoning By-law 943-2015 (OMB), which include adding an additional storey, changes to the overall height, setbacks, and parking standards, for the approved 16-storey mixed-use building (currently under construction).
240 m away · filed Aug 14, 2023 · 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.