Toronto address · Ward 11, University-Rosedale
12 Henderson Ave
The City of Toronto has 2 building permits since 2017 (2 still open) 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
Plumbing
Plumbing - Interiror alterations to main floor. Proposal of interior non-load bearing walls to be removed.
Applied Mar 31, 2009 · issued Mar 31, 2009 · Permit 09 122001 PLB
- Inspections under way
Small residential project · Interior alterations
Interiror alterations to main floor. Proposal of interior non-load bearing walls to be removed.
Applied Mar 31, 2009 · issued Mar 31, 2009 · Permit 09 122001 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
6 storeys · 49 homes · Mixed use
410 m away · Site plan · Under review · filed Oct 15, 2021
Neighbours’ Committee of Adjustment files within 250 m
37 Henderson Ave · Minor variance
To construct a new three-storey detached building (houseplex) with front and rear first storey juliet balconies, as well as, front and rear balconies located on the second and third storeys. There will be a total of six residential dwelling units on this lot (two units occupying the basement level, two units occupying the first level, and two units occupying the second and third levels).
90 m away · filed Jul 28, 2026 · Hearing scheduled
306 Euclid Ave · Minor variance
To alter the existing three-storey detached dwelling by constructing a rooftop deck (including a spiral staircase leading from the rear third storey balcony).
170 m away · filed Jul 23, 2026 · Hearing scheduled
280 Euclid Ave · Minor variance
To alter the existing two-storey detached dwelling by constructing a rear two-storey addition with a ground floor deck, a third storey dormer (attic for habitable space) with a rear rooftop deck, and a new covered front porch with a basement walkout.
220 m away · filed Mar 31, 2026 · Approved
375 Manning Ave · Minor variance
To construct a new three-storey semi-detached dwelling (fourplex) with a covered front porch with stairs, a front basement walkout, and a rear deck with stairs. This dwelling is currently under construction ( as approved under Building Permit No. 24 166489 BLD 00 NH). There will be five residential dwelling units on this lot (four units occupying the main dwelling and one unit occupying the ancillary building).
190 m away · filed Sep 5, 2025 · Approved
373 Manning Ave · Minor variance
To construct a new three-storey semi-detached dwelling (fourplex) with a covered front porch with stairs, a front basement walkout, and a rear deck with stairs. This dwelling is currently under construction (as approved under Building Permit No. 24 161943 BLD 00 NH). There will be five residential dwelling units on this lot (four units occupying the main dwelling and one unit occupying the ancillary building).
190 m away · filed Sep 4, 2025 · Approved
356 Euclid Ave · Minor variance
To alter the existing two-and-one-half-storey semi-detached dwelling by constructing a rear two-storey addition (including the basement level), a front second floor canopy, a south side window well with stairs, a rear ground floor deck with stairs and a rear third floor rooftop deck with privacy screen. The existing rear one-storey ancillary building (garage) will be maintained and unaltered.
140 m away · filed Sep 3, 2025 · Approved
377 Manning Ave · Minor variance
To construct a new three-storey semi-detached building with four residential dwelling units (fourplex). There will be a front porch with stairs, front terraces on the second and third storeys, a rear terrace with a staircase from the basement level to the third storey, and front and rear basement walkouts. Also, to construct a new rear two-storey ancillary building containing one laneway suite, abutting Allan Reynolds Lane.
200 m away · filed May 1, 2025 · Approved
647 College St · Minor variance
To convert the existing three-storey mixed-use building into a residential apartment building, and to construct a rear ground floor patio. There will be a total of six residential dwelling units on this lot (one unit within the basement, one unit on the ground level, two units on the second level, and two units on the third level). Also, four long-term bicycle parking spaces will be provided.
240 m away · filed Mar 3, 2025 · 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.