Toronto address · Ward 11, University-Rosedale
581 Ossington Ave
The City of Toronto has 7 building permits since 2017 (4 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.
- Inspections under way
Heating and ventilation
HVAC - Proposed 3 Storey Rear Addition and Interior Additions
Applied Jul 17, 2023 · issued Jul 24, 2023 · Permit 23 144475 HVA
- Inspections under way
Plumbing
Plumbing - Proposed 3 Storey Rear Addition and Interior Additions
Applied May 16, 2023 · issued Jun 6, 2023 · Permit 23 144475 PLB
- Closed
Small residential project · Addition(s)
Proposed 3 Storey Rear Addition and Interior Additions
Applied May 11, 2023 · issued Jun 6, 2023 · completed Jan 26, 2024 · Permit 23 144475 BLD
- Closed
Small residential project · Party wall admin permits
Party Wall 579 Ossington Av for work at 581 Ossington Av
Applied May 11, 2023 · issued Jun 6, 2023 · completed Jan 26, 2024 · Permit 23 144501 BLD
- Inspections under way
Heating and ventilation
HVAC - Proposed interior alterations to an existing single family detached dwelling.
Applied Apr 20, 2022 · issued Apr 22, 2022 · Permit 21 177855 HVA
- Closed
Small residential project · Interior alterations
Proposed interior alterations to an existing single family detached dwelling.
Applied Jun 29, 2021 · issued Nov 16, 2021 · completed Jan 24, 2024 · Permit 21 177855 BLD
- Inspections under way
Plumbing
Plumbing - Proposed interior alterations to an existing single family detached dwelling.
Applied Jun 29, 2021 · issued Nov 16, 2021 · Permit 21 177855 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-and-one-half-storey townhouse dwelling by constructing a rear two-storey addition with a ground floor deck, and a rear partial third storey addition with a rooftop patio.
Decision: Approved (hearing Nov 9, 2022)
Filed Jul 25, 2022 · File A0878/22TEY
What’s planned nearby
Development sites within 500 m
- Under review
- Under appeal
Neighbours’ Committee of Adjustment files within 250 m
585 Shaw St · Minor variance
To alter the rear two-storey detached ancillary building (containing one dwelling unit with a cantilevered second storey at the south side, and east and west side canopies), by adding a second dwelling unit within this ancillary building. This ancillary building is currently under construction with an authorized building permit. There will be a total of six residential dwelling units on this lot (four units within the main semi-detached building, and two units within the ancillary building).
200 m away · filed May 20, 2026 · Approved
108 Concord Ave · Minor variance
To alter the existing two-and-one-half-storey semi-detached dwelling by constructing a side (south) and rear two-storey addition and a third-storey side (south) and rear addition with a rear ground floor loggia and a carport in the front yard and third storey front dormer. Also, to construct a new one-storey detached ancillary building (shed) in the rear yard. The existing detached garage will be demolished.
150 m away · filed Nov 26, 2025 · Approved
555 Shaw St · Minor variance
To alter the existing two-and-one-half-storey detached dwelling by constructing a new canopy above the existing front porch, a new rear ground floor deck with a canopy and stairs, a rear hot tub, and a rear ancillary structure (pergola). Also, to construct a one-storey ancillary building (garage), in the rear yard, abutting the laneway.
230 m away · filed Aug 8, 2025 · Approved
561 Shaw St · Minor variance
To alter the existing three-storey semi-detached dwelling by constructing a rear third storey addition.
220 m away · filed Aug 6, 2025 · Approved
324 Roxton Rd · Minor variance
To alter the existing two-storey semi-detached dwelling by reconstructing a front covered porch with stairs and a basement walkout, a rear ground floor covered deck, and a rear second floor deck. There will be three residential dwelling units on this lot.
190 m away · filed Apr 9, 2025 · Approved
456 Roxton Rd · Minor variance
To convert the existing two-and-one-half-storey semi-detached dwelling from two residential dwelling units into three residential dwelling units by constructing a rear two-storey addition, a rear third storey addition with a rear terrace, as well as front and rear basement walkouts. Also, to construct a two-storey ancillary building (containing one laneway suite), in the rear yard, abutting the laneway. There will be a total of 4 residential dwelling units on this lot.
180 m away · filed Apr 5, 2024 · Approved
513 Ossington Ave · Minor variance
To construct a new two-storey detached ancillary building (one laneway suite), in the rear yard, abutting the laneway. The existing fourplex dwelling will be maintained and unaltered.
210 m away · filed Mar 8, 2024 · Approved
170 Concord Ave · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a rear ground floor addition and to enclose the existing front porch. The existing front porch stairs will be maintained and unaltered.
170 m away · filed Dec 12, 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.