Toronto address · Ward 13, Toronto Centre
391 Ontario St
The City of Toronto has 14 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
Heating and ventilation
HVAC - Proposed 3rd storey addition with roof deck and interior alterations.
Applied Feb 3, 2025 · issued Feb 21, 2025 · completed Nov 7, 2025 · Permit 24 137315 HVA
- Closed
Addition or alteration · Multiple projects
Proposed 3rd storey addition with roof deck and interior alterations.
Applied Apr 17, 2024 · issued Jul 16, 2024 · completed Dec 5, 2025 · Permit 24 137315 BLD
- Closed
Addition or alteration · Interior alterations
REVISION 2 - alter use of each floor; first floor residential becomes commercial and 2nd floor commercial becomes residential[Proposal for interior alterations to the existing ground floor dwelling unit and second/third floor recreation area (yoga studio). No change of use is proposed as part of the scope of work.]
Applied Sep 8, 2021 · issued Jan 18, 2023 · completed Nov 7, 2025 · 1 home added · Permit 20 178883 BLD (revision 02)
- Closed
Addition or alteration · Interior alterations
REVISION - interior layout changes and remove partial 3rd floor and deck - now 2 storeys.[Proposal for interior alterations to the existing ground floor dwelling unit and second/third floor recreation area (yoga studio). No change of use is proposed as part of the scope of work.]
Applied Mar 24, 2021 · issued May 12, 2021 · completed Nov 7, 2025 · Permit 20 178883 BLD (revision 01)
- Closed
Plumbing
REVISION - new sink and laundry on 2nd floorPlumbing - Proposed addition to third floor and interior alterations to the ground, second and third floor.
Applied Mar 24, 2021 · issued Apr 19, 2021 · completed Nov 7, 2025 · Permit 20 178883 PLB (revision 01)
- Closed
Addition or alteration · Interior alterations
Proposal for interior alterations to the existing ground floor dwelling unit and second/third floor recreation area (yoga studio). No change of use is proposed as part of the scope of work.
Applied Aug 11, 2020 · issued Feb 26, 2021 · completed Nov 7, 2025 · Permit 20 178883 BLD
- Closed
Plumbing
Plumbing - Proposed addition to third floor and interior alterations to the ground, second and third floor.
Applied Aug 11, 2020 · issued Feb 26, 2021 · completed Nov 7, 2025 · Permit 20 178883 PLB
- Closed
Heating and ventilation
HVAC - REV 01 - to interior duct work
Applied Feb 4, 2016 · issued Apr 6, 2017 · completed Nov 25, 2017 · Permit 06 147649 HVA (revision 01)
- Cancelled
Addition or alteration · Multiple projects
REV 02 - minor interior layout alterations, deleting green roof, and new guard on roof
Applied Feb 4, 2016 · completed Jun 20, 2017 · Permit 06 147649 BLD (revision 02)
- Closed
Addition or alteration · Multiple projects
basement conversion being deleted and green roof on 3rd floor added
Applied Sep 7, 2006 · issued Sep 26, 2006 · completed Nov 25, 2017 · Permit 06 147649 BLD (revision 01)
- Closed
Heating and ventilation
HVAC - Proposal to construct an additon to a mezzine on the 2nd floor, and interior alterations to convert 2nd storey and mezzine to commercial school (yoga school) and basement & ground floor to 1 residential unit. See C of A # A0664/05TEY
Applied Aug 17, 2006 · issued Aug 22, 2006 · completed Nov 25, 2017 · Permit 06 147649 HVA
- Closed
Addition or alteration · Multiple projects
Proposal to construct an additon to a mezzine on the 2nd floor, and interior alterations to convert 2nd storey and mezzine to commercial school (yoga school) and basement & ground floor to 1 residential unit. See C of A # A0664/05TEY
Applied Jun 16, 2006 · issued Jul 27, 2006 · completed Nov 25, 2017 · Permit 06 147649 BLD
Show 2 more permits
- Closed
Plumbing
Plumbing - Proposal to construct an additon to a mezzine on the 2nd floor, and interior alterations to convert 2nd storey and mezzine to commercial school (yoga school) and basement & ground floor to 1 residential unit. See C of A # A0664/05TEY
Applied Jun 16, 2006 · issued Jul 27, 2006 · completed Nov 25, 2017 · Permit 06 147649 PLB
- Closed
Small residential project · Interior alterations
Make interior alterations & underpin portion of basement.
Applied May 31, 2006 · issued Jun 14, 2006 · completed Nov 25, 2017 · Permit 06 140866 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.
- Approved with conditions
Minor variance · R addition
To alter the existing two-storey mixed-use building by constructing a partial third storey addition (north side) with a deck on the roof of the second storey portion (south side) of the building. The existing ground floor commercial space will be maintained and unaltered and the existing residential unit will now occupy both the second and third storeys of the building.
Decision: Approved (hearing Nov 22, 2023)
Filed Aug 23, 2023 · File A0816/23TEY
What’s planned nearby
Development sites within 500 m
- Under review
107 homes · Residential
90 m away · Condominium · Under review · filed Oct 27, 2021
- Under review
10 storeys · 60 homes · Mixed use
140 m away · Site plan · Under review · filed Jul 4, 2025
- Now selling
- Under review
11 storeys · Mixed use
260 m away · Site plan · Under review · filed May 26, 2026
- Under review
10 storeys · Residential
270 m away · Condominium · Under review · filed Oct 26, 2021
- Under review
591 Dundas Street East and 325 Gerrard Street East
26 storeys · 271 homes · Non-residential
310 m away · Site plan · Under review · filed Jan 13, 2025
Neighbours’ Committee of Adjustment files within 250 m
380 Berkeley St · Minor variance
To alter the existing two-and-one-half-storey semi-detached dwelling by constructing a side (south) two storey addition. Also, to construct rear ground floor and second storey bay windows, a rear second storey balcony, and a rear third storey rooftop pergola and terrace extension (above the second storey roof).
190 m away · filed Apr 16, 2026 · Approved
183 Carlton St · Minor variance
To alter the existing two-and-one-half semi-detached building (houseplex), which is currently under construction (Building Permit 25 258356 BLD), by constructing a side (east) basement walkout with a flat roof canopy. Also, to maintain the existing rear second storey roof deck with stairs, and third storey roof deck. There will be two existing units and two new units for a total of four residential dwelling units on this lot (one unit occupying the basement level, two units occupying the first level, and one unit occupying the second and third levels).
240 m away · filed Apr 10, 2026 · Approved
311 Sherbourne St · Minor variance
To alter the existing three-storey mixed-use building by converting the storage room on the second and third levels into seven additional hostel suites (three on the second level, and four on the third level). The existing pharmacy and cafeteria on the ground level, 19 hostel suites on the second level, and 20 hostel suites on the third level will be maintained and unaltered.
190 m away · filed Apr 8, 2026 · Approved
388 Berkeley St · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a rear two-storey addition with a ground floor stair landing, and a side (south) basement walkout. The existing basement walkout and rear deck with be demolished, and a portion of the rear second storey roof will be reconstructed. Also, to construct one additional parking space (for a total of two parking spaces), abutting the laneway.
210 m away · filed Jan 12, 2026 · Approved
209 Carlton St · Minor variance
To alter the existing three-storey semi-detached building (currently vacant and with the front and rear portion of the building, abutting Doctor O Lane, attached below grade) by converting it to a mixed-use building (service hub for the Indigenous community) with four dwelling units and community and office space on the basement, first, and second floors, by constructing front and side (west) basement additions, an enlarged ground floor terrace (at the west portion of the building), three new dormers at the rear portion of the second floor, and a rear second floor balcony at the east portion…
250 m away · filed May 27, 2025 · Approved
320 Ontario St · Minor variance
To alter the existing two-storey detached dwelling by constructing a rear two-storey addition with a ground floor covered deck. The existing rear one-storey addition and rear deck will be demolished.
190 m away · filed Apr 10, 2025 · Approved
311 Sherbourne St · Minor variance
To alter the existing three-storey commercial building (containing office uses) by converting the west half of the first storey, and the second and third storeys into a hotel use with a common use area located on the ground floor. The existing east half of the building and the existing pharmacy (located on the ground floor) will be maintained. There will be a total of 39 hotel rooms within this mixed-use building.
190 m away · filed Feb 5, 2025 · Approved
268 Seaton St · Minor variance
To convert the existing two-and-one-half-storey rowhouse into a 12-room rooming house by constructing a rear third storey addition with a balcony.
110 m away · filed Feb 8, 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.