1778 Dufferin St

Building permits

Every permit the City lists for this address since 2017, and any still open from before, newest first.

• Small residential project · Interior alterations

  REVISION 01: REVISED STRUCTURAL DRAWINGSProposal for interior alteration to convert 2 unit dwelling to 4 unit dwelling

  Applied May 15, 2025 · issued Jun 6, 2025 · completed Apr 10, 2026 · Permit 25 107905 BLD (revision 01)

  Closed

• Heating and ventilation

  HVAC - Proposal to convert the existing detached garage to a garden suite in the rear yard of an existing 4 unit semi dwelling. See also 25 149171 ZAP

  Applied May 14, 2025 · Permit 25 159137 HVA

  Issuance pending

• Small residential project · New laneway / rear yard suite

  Proposal to convert the existing detached garage to a garden suite in the rear yard of an existing 4 unit semi dwelling. See also 25 149171 ZAP

  Applied May 14, 2025 · 5 homes added · Permit 25 159137 BLD

  Refusal notice

• Plumbing

  Plumbing - Proposal to convert the existing detached garage to a garden suite in the rear yard of an existing 4 unit semi dwelling. See also 25 149171 ZAP

  Applied May 14, 2025 · Permit 25 159137 PLB

  Issuance pending

• Drains and site services

  Drain - Proposal to convert the existing detached garage to a garden suite in the rear yard of an existing 4 unit semi dwelling. See also 25 149171 ZAP

  Applied May 14, 2025 · Permit 25 159137 DRN

  Issuance pending

• Plumbing

  Plumbing - Proposal for interior alteration to convert 2 unit dwelling to 4 unit dwelling

  Applied Jan 23, 2025 · issued Apr 22, 2025 · completed Apr 10, 2026 · Permit 25 107905 PLB

  Closed

• Heating and ventilation

  HVAC - Proposal for interior alteration to convert 2 unit dwelling to 4 unit dwelling

  Applied Jan 23, 2025 · issued Apr 22, 2025 · completed Jan 30, 2026 · Permit 25 107905 HVA

  Closed

• Small residential project · Interior alterations

  Proposal for interior alteration to convert 2 unit dwelling to 4 unit dwelling

  Applied Jan 23, 2025 · issued Apr 22, 2025 · completed Apr 10, 2026 · 2 homes added · Permit 25 107905 BLD

  Closed

• Heating and ventilation

  HVAC - Proposal for interior alterations to convert existing dwelling to a duplex (2nd suite).

  Applied Jan 7, 2025 · issued Jan 16, 2025 · completed Apr 10, 2026 · Permit 25 102005 HVA

  Closed

• Small residential project · Second suite (New)

  Proposal for interior alterations to convert existing dwelling to a duplex (2nd suite).

  Applied Jan 7, 2025 · issued Jan 9, 2025 · completed Apr 10, 2026 · 1 home added · Permit 25 102005 BLD

  Closed

• Plumbing

  Plumbing - Proposal for interior alterations to convert existing dwelling to a duplex (2nd suite).

  Applied Jan 7, 2025 · issued Jan 10, 2025 · completed Apr 10, 2026 · Permit 25 102005 PLB

  Closed

• Small residential project · Interior alterations

  Revision to 07-190411 re; The new side door is to swing out. (interior alters and create new side entrance)

  Applied Jun 18, 2008 · issued Jun 23, 2008 · completed Jul 2, 2025 · Permit 07 190411 BLD (revision 01)

  Closed

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

• 133 Boon Ave · Minor variance

  To legalize and to maintain the rear fourth storey addition with a rooftop terrace (on the roof of the third storey), of the existing three-and-one-half-storey semi-detached dwelling (basement level is considered the first storey), that was constructed without an authorized building permit. Also, to permit the rear two-storey addition (located at the rear of the second and third storeys of the dwelling) that was constructed beyond the limits of an authorized building permit (19 212470 BLD 00 SR).

  250 m away · filed Jun 4, 2026 · Approved

• 247 Westmount Ave · Minor variance

  To alter the existing one-storey detached dwelling by constructing a complete second storey addition (including a window projection at the north side). Also, to reconstruct the existing rear deck with stairs. There will be two residential dwelling units on this lot.

  230 m away · filed Apr 3, 2025 · Approved

• 173 Northcliffe Blvd · Minor variance

  To construct a new two-storey ancillary building (containing one parking space on the ground level and one garden suite on the second storey) in the rear yard of the existing two-storey detached dwelling. The existing garage in the rear yard will be demolished.

  240 m away · filed Jun 1, 2023 · Approved

• 17 Day Ave · Minor variance

  To alter the existing two-storey semi-detached dwelling by constructing a rear one-storey addition and new stairs.

  200 m away · filed Apr 25, 2023 · Withdrawn

• 249 Westmount Ave · Minor variance

  To alter the existing one-storey detached dwelling by constructing a front one-storey addition with a porch, a complete second storey addition, a rear two-storey addition, a rear second storey balcony, a rear ground floor deck, and a basement secondary suite.

  240 m away · filed Jan 9, 2023 · Approved

• 51 Ascot Ave · Minor variance

  To convert the existing one-storey ancillary building (detached garage in the rear yard, abutting St. Clair Gardens) into a two-storey ancillary building (containing a two-car garage on the ground level, and one garden suite that will occupy the second level), by constructing a complete second storey addition with two second storey side (west) juliette balconies. There will be a total of two residential dwelling units on this lot (one unit within the main dwelling and one unit within the ancillary building).

  140 m away · filed Oct 28, 2022 · Approved

• 240 Westmount Ave · Minor variance

  To construct a one-storey ancillary building (detached garage) in the rear yard of the property.

  180 m away · filed Oct 29, 2021 · Approved

• 43 Norton Ave · Minor variance

  To construct a rear detached garage.

  240 m away · filed Aug 25, 2021 · Refused

Everything planned in Davenport