Toronto address · Ward 13, Toronto Centre
423 Queen St E
The City of Toronto has 5 building permits since 2017 (4 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.
- Closed
Plumbing · Backflow prevention devices (Water only)
install backflow preventor
Applied Nov 13, 2015 · issued Dec 8, 2015 · completed Mar 26, 2026 · Permit 15 251028 PSA
- Inspections under way
Fire and security upgrade · Sprinklers
Proposal to alter existing sprinkler system in relation to building permit 09-152705 BLD for existing mixed-use building (460m2).
Applied Aug 19, 2009 · issued Sep 2, 2009 · Permit 09 159719 FSU
- Inspections under way
Heating and ventilation
HVAC - Interior alterations to first floor retail and 2nd storey 2 residential units.
Applied Jul 31, 2009 · issued Sep 9, 2009 · Permit 09 152705 HVA
- Inspections under way
Plumbing
Plumbing - Interior alterations to first floor retail and 2nd storey 2 residential units.See HVAC file for plans
Applied Jul 31, 2009 · issued Sep 9, 2009 · Permit 09 152705 PLB
- Inspections under way
Addition or alteration · Interior alterations
Interior alterations to first floor retail and 2nd storey to create one additional dwelling unit (existing was one dwelling unit)
Applied Jul 31, 2009 · issued Sep 9, 2009 · Permit 09 152705 BLD
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 review
15 storeys · 151 homes · Residential
150 m away · Condominium · Under review · filed Nov 8, 2021
- Approved
80-94 Power Street, 351-373 Queen Street East and 161-167 Parliament Street
28 storeys · 526 homes · Mixed use
220 m away · Site plan · Approved · filed Jun 28, 2021
- Under review
1-16 Sumach Street and 90 Eastern Avenue
55 storeys · 1,284 homes · Mixed use
290 m away · Site plan · Under review · filed Oct 21, 2025
- Submitted
20 storeys · 297 homes · Residential
300 m away · Site plan · Submitted · filed Apr 16, 2026
- Under review
494-526 Richmond Street East and 156-162 Parliament Street
588 homes · Residential
340 m away · Site plan · Under review · filed Jul 12, 2023
- Under appeal
130-134 Parliament Street and 529 Richmond Street East
46 storeys · 419 homes · Mixed use
340 m away · Site plan · Under appeal · filed Aug 14, 2023
Neighbours’ Committee of Adjustment files within 250 m
498 Queen St E · Minor variance
To legalize and to maintain the conversion of a rooming house into eight residential dwelling units, within this lawfully existing building.
180 m away · filed Mar 7, 2025 · Deferred
90 Sumach St · Minor variance
To construct a new rooftop stair enclosure (vestibule and storage area) for Unit 701, within this existing seven-storey detached building. The existing private rooftop elevator enclosure will be demolished.
160 m away · filed Sep 27, 2024 · Approved
90 Sumach St · Minor variance
To alter the existing seven-storey apartment building by constructing a new third storey rooftop deck (for Unit 319), to be located on the roof above the existing parking garage, on the north side of the building. There will be a partition fence on the rooftop deck.
160 m away · filed Jan 5, 2024 · Refused
90 Sumach St · Minor variance
To legalize and to maintain the residential rooftop terrace enclosure (unit 702 in the seven-storey mixed-use building) which was constructed without an authorized building permit.
160 m away · filed Nov 29, 2023 · Approved
358 Queen St E · Minor variance
To convert the second and third levels from residential units into commercial use(s).
230 m away · filed Aug 24, 2023 · Approved
351 Queen St E · Minor variance
To alter the approved mixed-use development by increasing the height of the building that consists of 10, 12, 13 and 27-storeys, as shown on the Revised Diagram 3. Also, to increase both the total and residential gross floor areas, and to reduce the non-residential gross floor area, the number of vehicular parking spaces, and the residential amenity spaces.
250 m away · filed Aug 23, 2023 · Approved
54 Power St · Minor variance
To increase the maximum permitted non-residential gross floor area for a single retail or service use within this existing mixed-use building.
240 m away · filed May 24, 2022 · Approved
387 Shuter St · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a third storey addition with a rear third storey terrace.
170 m away · filed Apr 20, 2022 · 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.