Toronto address · Ward 14, Toronto-Danforth
21 Riverdale Ave
The City of Toronto has 6 building permits since 2017 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 · Other
Installation of a solar PV
Applied Jul 25, 2018 · issued Oct 3, 2018 · completed Nov 8, 2018 · Permit 18 199767 BLD
- Closed
Small residential project · Party wall admin permits
Proposal for administrative permit in conjunction with 23 RIVERDALE AVE
Applied Sep 18, 2017 · issued Sep 27, 2017 · completed May 2, 2022 · Permit 17 234338 BLD
- Closed
Small residential project · Multiple projects
REVISION 01 - 3 NEW SKYLIGHTSProposal for a 3rd floor addition, interior alterations on 2nd floor for new stair, and 3rd floor balcony in existing semi-detached 2 unit dwelling.
Applied Aug 17, 2017 · issued Aug 24, 2017 · completed Nov 8, 2018 · Permit 16 172761 BLD (revision 01)
- Closed
Heating and ventilation
HVAC - Proposal for a 3rd floor addition, interior alterations on 2nd floor for new stair, and 3rd floor balcony in existing semi-detached 2 unit dwelling.
Applied Jul 20, 2016 · issued Aug 4, 2016 · completed Oct 23, 2018 · Permit 16 172761 HVA
- Closed
Plumbing
Plumbing - Proposal for a 3rd floor addition, interior alterations on 2nd floor for new stair, and 3rd floor balcony in existing semi-detached 2 unit dwelling.
Applied Jun 13, 2016 · issued Jul 14, 2016 · completed Oct 23, 2018 · Permit 16 172761 PLB
- Closed
Small residential project · Multiple projects
Proposal for a 3rd floor addition, interior alterations on 2nd floor for new stair, and 3rd floor balcony in existing semi-detached 2 unit dwelling.
Applied Jun 13, 2016 · issued Jul 14, 2016 · completed Nov 8, 2018 · Permit 16 172761 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
51 homes · Residential
290 m away · Site plan · Under review · filed Apr 24, 2024
Neighbours’ Committee of Adjustment files within 250 m
13 Langley Ave · Minor variance
To alter the existing three-storey semi-detached dwelling by constructing a new rear one-storey addition, a new rear ground floor deck with stairs, and a new basement walkout stairs. The existing rear one-storey addition and deck will be demolished.
130 m away · filed Jul 20, 2026 · Hearing scheduled
60 Withrow Ave · Minor variance
To alter the existing two-and-one-half-storey semi-detached dwelling by constructing a third storey east side (dormer) addition, and a rear third storey addition.
230 m away · filed Apr 30, 2026 · Approved
18 Langley Ave · Minor variance
To legalize and to maintain the existing rear third storey dormer converted attic into habitable space with a rooftop patio, that were constructed beyond an authorized building permit.
80 m away · filed Mar 10, 2026 · Approved
11 Riverdale Ave · Minor variance
To construct a new two-storey semi-detached ancillary building with a complete cantilevered second storey, and front and rear juliette balconies. This ancillary building (abutting the laneway) will contain a one car garage on the ground level and storage and loft space (no habitable space) on the second level.
30 m away · filed Aug 12, 2025 · Refused
9 Riverdale Ave · Minor variance
To construct a new two-storey semi-detached ancillary building with a partially cantilevered second storey, and a rear juliette balcony. This ancillary building (abutting the laneway) will contain a one car garage on the ground level and storage and loft space (no habitable space) on the second level.
30 m away · filed Aug 12, 2025 · Refused
52 Riverdale Ave · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a side (west) two-storey addition, a rear second storey addition (above the existing rear one-storey addition), a third storey attic extension (for habitable space), and a rear basement walkout.
100 m away · filed Aug 11, 2025 · Approved
99 Langley Ave · Minor variance
To alter the existing two-and-one-half-storey detached dwelling by constructing a third storey addition and a rear third storey balcony (Juliet).
240 m away · filed May 8, 2025 · Approved
74 Langley Ave · Minor variance
To alter the existing two-and-one-half-storey detached dwelling by constructing a one-storey side (west) addition with an integral garage, partial rear additions on the second and third storeys, and an oversized driveway.
190 m away · filed May 21, 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.