Toronto address · Ward 12, Toronto-St. Paul's
109 Duplex Ave
The City of Toronto has 3 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
Plumbing
Plumbing - Proposed planning on changing 1 bedroom (bedroom #3 as shown on the floor plan)to a primary ensuite bathroom
Applied Sep 23, 2025 · issued Sep 30, 2025 · completed Dec 19, 2025 · Permit 25 229655 PLB
- Closed
Small residential project · Interior alterations
Proposed planning on changing 1 bedroom (bedroom #3 as shown on the floor plan)to a primary ensuite bathroom
Applied Sep 23, 2025 · issued Sep 30, 2025 · completed Dec 19, 2025 · Permit 25 229655 BLD
- Closed
Drains and site services · Back water valve (Sewer only)
112 linear ft of exterior waterproofing with supply and installation of sump pump and back water valve
Applied Sep 13, 2024 · issued Sep 13, 2024 · completed Oct 1, 2024 · Permit 24 212257 DRN
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
- Approved
2010-2050 Yonge Street and 15 Lola Road
14 storeys · Mixed use
120 m away · Rezoning · Approved · filed Jan 7, 2026
- Under review
14 storeys · 274 homes · Mixed use
120 m away · Site plan · Under review · filed Nov 8, 2021
- Under review
40-50 Tullis Drive and 2039-2049 Yonge Street
11 storeys · Mixed use
210 m away · Site plan · Under review · filed Aug 22, 2022
- Under review
19 storeys · 228 homes · Mixed use
230 m away · Site plan · Under review · filed Oct 8, 2021
- Under review
45 storeys · 379 homes · Mixed use
250 m away · Rezoning · Under review · filed Feb 27, 2026
- Under review
Neighbours’ Committee of Adjustment files within 250 m
71 Lascelles Blvd · Minor variance
To construct a new three-storey detached dwelling with a rear third storey balcony Also, to construct a front widened driveway and a new one-storey ancillary building (cabana) in the rear yard.
190 m away · filed Apr 13, 2026 · Approved
88 Colin Ave · Minor variance
To construct a new three-storey detached dwelling with a front covered porch with stairs, a front integral garage, a rear ground floor porch, and a rear third-storey balcony. Also, to construct a one-storey ancillary building (cabana) in the rear yard of the property.
150 m away · filed Jan 13, 2026 · Approved
53 Manor Rd W · Minor variance
To alter the existing two-storey semi-detached dwelling by constructing a rear (south) two-storey addition with a deck and stairs, and a side (west) entrance (abutting Duplex Avenue). The existing rear deck will be demolished.
80 m away · filed Nov 10, 2025 · Approved
2100 Yonge St · Consent
To obtain consent to a strata severance and to create various easements/rights-of-way.
210 m away · filed Feb 14, 2025 · Approved
67 Colin Ave · Minor variance
To construct a new three-storey detached dwelling with a front integrated garage, a front porch, a front bay window, a front second storey balcony, a rear basement walkout, a rear ground level deck, and a rear third storey balcony. Also, to construct a front driveway.
80 m away · filed Nov 28, 2023 · Approved
52 Manor Rd W · Minor variance
To construct a new one-storey ancillary building (carport) in the rear yard, abutting Duplex Avenue.
140 m away · filed Jun 9, 2023 · Approved
91 Colin Ave · Minor variance
To alter the existing two-storey detached dwelling by constructing a two-storey side (south) addition, rear two-storey addition with a rear ground floor deck, and a rear second storey balcony.
140 m away · filed Jan 19, 2023 · Approved
34 Colin Ave · Minor variance
To alter the existing two-storey detached dwelling by reconstructing the rear second storey balcony.
200 m away · filed Jun 16, 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.