300 Cosburn Ave

Building permits

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

• Plumbing

  Plumbing - Convert basement to a second suite and add basement walklout

  Applied Jul 27, 2015 · issued Aug 6, 2015 · completed Sep 5, 2017 · Permit 15 197753 PLB

  Closed

• Small residential project · Multiple projects

  Convert basement to a second suite and add basement walkout.

  Applied Jul 27, 2015 · issued Aug 4, 2015 · completed Sep 7, 2017 · Permit 15 197753 BLD

  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

• 322 Cosburn Ave · Minor variance

  To construct a new three-storey (12-unit) apartment building which will span across two lots. This lot (Part 1) will contain six residential dwelling units with front and rear basement walkouts, a front porch with stairs, and a rear third storey balcony. The second storey will be cantilevered on the east side of the building. There will be a total of one short-term and six long-term bicycle parking spaces in the rear yard.

  150 m away · filed Aug 14, 2026 · Hearing scheduled

• 322 Cosburn Ave · Minor variance

  To construct a new three-storey (12-unit) apartment building which will span across two lots. This lot (Part 2) will contain six residential dwelling units with front and rear basement walkouts, a front porch with stairs, and a rear third storey balcony. The second storey will be cantilevered on the west side of the building. There will be a total of two short term and five long term bicycle parking spaces in the rear yard.

  150 m away · filed Aug 14, 2026 · Hearing scheduled

• 334 Donlands Ave · Minor variance

  To alter the existing two-and-one-half-storey detached mixed-use building (basement level is considered the first storey) by converting it into fully residential use, with two basement walkouts at the north and south-west corner, and an exterior west side staircase connecting the ground level to the south side second storey terrace. Also, there will be a total of two rear car parking spaces (one accessible parking space), 16 bicycle parking spaces (12 long-term at the basement level and four short-term in the rear yard), and seven exterior bins in the rear yard. There will be a total of 24 re…

  220 m away · filed Aug 13, 2026 · Postponed

• 301 Cosburn Ave · Minor variance

  To alter the existing rear one-storey detached ancillary building (one-car garage) by constructing a one-storey addition along the west side wall of this building.

  40 m away · filed Jul 21, 2026 · Approved

• 40 Cadorna Ave · Minor variance

  To legalize and to maintain the side (north) one-storey addition (addition to rear of the existing attached garage and new garage roof) of the existing two-storey detached dwelling, that was constructed without an authorized building permit. Also, to permit and maintain the new front porch roof.

  90 m away · filed Jul 8, 2026 · Postponed

• 250 Gamble Ave · Minor variance

  To construct a new one-storey detached ancillary building (prefabricated storage shed), in the rear yard of the existing two-storey detached dwelling. The existing rear one-storey detached ancillary building (one-car garage abutting the driveway) will be maintained and unaltered. The existing rear one-storey detached ancillary building (workshop) will be demolished. There is a total of two residential dwelling units on this lot.

  250 m away · filed May 28, 2026 · Approved

• 12 St Hubert Ave · Minor variance

  To construct a new two-storey detached dwelling (including basement) with an integral garage, a widened driveway, a covered front porch with stairs, a rear first storey deck with stairs, and a rear basement walkout. The existing rear one-storey detached ancillary building (garage) will be demolished.

  200 m away · filed Mar 10, 2026 · Approved

• 63 St Hubert Ave · Minor variance

  To construct a new three-storey detached dwelling (basement level is considered the first level) with an integral garage, a front porch, a rear second storey covered deck, and a rear basement walkout. There will be a total of two residential dwelling units on this lot (one unit within the basement (first) level and one unit occupying the second and third levels).

  190 m away · filed Feb 12, 2026 · Approved

Everything planned in Toronto-Danforth