Toronto address · Ward 13, Toronto Centre
336 Ontario St
The City of Toronto has 4 building permits since 2017 (3 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
Small residential project · Porch
Removal of existing interlock porch patio and construction of new wood frame porch in same footprint as existing patio. Porch to match historical details of porch 2 doors down at 340 Ontario St., a house with the same layout as 336 Ontario St. No change to building area or lot coverage.
Applied Nov 26, 2021 · issued Feb 22, 2022 · completed Jul 13, 2022 · Permit 21 242155 BLD
- Work not started
Heating and ventilation
HVAC - Proposal to convert existing attic to habitable space, rear 3rd floor addition and interior alterations to existing sfd SEMI
Applied Jul 19, 2021 · issued Sep 9, 2021 · Permit 21 183888 HVA
- Work not started
Plumbing
Plumbing - Proposal to convert existing attic to habitable space, rear 3rd floor addition and interior alterations to existing sfd SEMI
Applied Jul 13, 2021 · issued Sep 9, 2021 · Permit 21 183888 PLB
- Work not started
Small residential project · Addition(s)
Proposal to convert existing attic to habitable space, rear 3rd floor addition and interior alterations to existing sfd SEMI
Applied Jul 13, 2021 · issued Sep 9, 2021 · Permit 21 183888 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 semi-detached dwelling by converting the existing attic to a third-storey.
Decision: Approved (hearing May 18, 2021)
Filed Dec 3, 2020 · File A1102/20TEY
What’s planned nearby
Development sites within 500 m
- Under review
107 homes · Residential
160 m away · Condominium · Under review · filed Oct 27, 2021
- Under review
10 storeys · 60 homes · Mixed use
190 m away · Site plan · Under review · filed Jul 4, 2025
- Under review
14 storeys · 137 homes · Mixed use
210 m away · Site plan · Under review · filed Oct 18, 2021
- Under review
10 storeys · Residential
250 m away · Condominium · Under review · filed Oct 26, 2021
- Now selling
- Under review
47 storeys · 619 homes · Residential
330 m away · Site plan · Under review · filed Sep 16, 2022
Neighbours’ Committee of Adjustment files within 250 m
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.
250 m away · filed Apr 8, 2026 · 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.
50 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.
250 m away · filed Feb 5, 2025 · Approved
401 Dundas St E · Minor variance
To alter the development standards (as approved under Site Specific Zoning By-law 770-2023), for a new 14-storey mixed-use building, by increasing the gross floor area, and building height.
210 m away · filed Apr 18, 2024 · 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.
140 m away · filed Feb 8, 2024 · Approved
227 Gerrard St E · Minor variance
To alter the development standards (as approved under Site Specific Zoning By-laws 887-2021(OLT) and 888-2021(OLT)), for a 7-storey mixed-use building, by increasing the number of dwelling units.
160 m away · filed Nov 10, 2023 · Approved
391 Ontario St · Minor variance
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.
150 m away · filed Aug 23, 2023 · Approved
394 Dundas St E · Minor variance
To permit the existing two-storey rowhouse into a rooming house (a total of 5 suites) through interior alterations. Also, to maintain the existing rear one-storey ancillary building (detached garage), in the rear yard, abutting the laneway.
150 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.