Toronto address · Ward 11, University-Rosedale
21 Maclennan Ave
The City of Toronto has 1 building permit 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.
- Revocation pending
Drains and site services · Back water valve (Sewer only)
Proposal to install back water valve.
Applied Nov 4, 2019 · issued Nov 4, 2019 · Permit 19 244713 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
No rezoning, site plan, subdivision or condominium file open within 500 m, and no pre-construction project on the site.
Neighbours’ Committee of Adjustment files within 250 m
398 Summerhill Ave · Minor variance
To permit a restaurant and a take-out restaurant use on the lower level (basement) and upper level (first storey) storey of the existing semi-detached three-storey mixed-use building (fourth storey is mechanical space). The existing commercial and office space on the second storey, the residential dwelling unit on the third storey and the mechanical space on the fourth storey will be maintained and unaltered.
140 m away · filed Jul 28, 2026 · Hearing scheduled
402 Summerhill Ave · Minor variance
To alter the existing three-and-one-half-storey mixed-use building by constructing a partial front one-storey addition (porch enclosure with a new covered entry way and stairs). The existing commercial use (veterinary clinic occupying the basement and first levels) and one residential dwelling unit (occupying the second and third levels) will be maintained and unaltered.
160 m away · filed Jun 12, 2026 · Approved
20 Edgar Ave · Minor variance
To alter the existing two-and-one-half-storey detached dwelling by constructing a rear third storey dormer addition, a new rear two-storey addition with a rooftop garden, and a partially covered rear ground floor patio. Also, to alter the existing rear one-storey semi-detached ancillary building (garage) by constructing a rear one-storey addition.
180 m away · filed May 15, 2026 · Approved
12 Edgar Ave · Minor variance
To alter the existing rear one-storey ancillary detached building (three-car garage) by constructing a complete second storey addition, and a two-storey addition on the north side of the building. The second storey will contain a studio area, bathroom and storage space (non-habitable space). The existing three-storey main detached dwelling and existing shed (attached to the existing one-storey ancillary building in the rear yard) will be maintained and unaltered. This Minor Variance application is necessitated to include additional variances that were not identified in Minor Variance Decision…
160 m away · filed Apr 8, 2026 · Approved
20 Edgar Ave · Minor variance
To alter the existing two-and-one-half-storey detached dwelling by constructing a rear third storey dormer addition, a new rear two-storey addition with a rooftop garden, a rear basement extension (for the purpose of a below-grade parking structure with two parking spaces), a rear ground floor covered patio with an outdoor kitchen, and a rear in-ground swimming pool. The existing rear one-storey semi-detached garage will be demolished.
180 m away · filed Mar 5, 2026 · Refused
79 Whitehall Rd · Minor variance
To construct a new ancillary structure (detached carport containing two vehicular parking spaces, located in the rear yard of the property) and a storage shed. The existing detached garage will be demolished. There is a total of three residential dwelling units on this lot (located within the main dwelling).
160 m away · filed Dec 16, 2025 · Approved
27 St Andrews Gdns · Minor variance
To alter the existing two-and-one-half-storey detached dwelling by constructing a one-storey addition on the side (west) wall (enclosing the covered porch into habitable space).
170 m away · filed Nov 6, 2025 · Approved
392 Summerhill Ave · Minor variance
To alter the existing two-storey semi-detached building by constructing a two-storey side (west) addition with a side (west) porch and stairs. Also, to construct interior alterations for a new medical office use (dental office). No parking spaces will be provided on the site.
110 m away · filed Aug 15, 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.