520 Cosburn Ave

Building permits

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

• Plumbing

  Plumbing - Proposal for accessibility upgrades, new elevator installation, interior alterations for universal washrooms.

  Applied Apr 2, 2026 · issued Jun 24, 2026 · Permit 26 138199 PLB

  Permit issued

• Addition or alteration · Interior alterations

  Proposal for accessibility upgrades, new elevator installation, interior alterations for universal washrooms.

  Applied Apr 2, 2026 · issued Jun 24, 2026 · Permit 26 138199 BLD

  Inspections under way

• Heating and ventilation

  HVAC - Proposal for accessibility upgrades, new elevator installation, interior alterations for universal washrooms.

  Applied Apr 2, 2026 · issued Jun 24, 2026 · Permit 26 138199 HVA

  Permit issued

• Fire and security upgrade · Fire alarm

  Fire Alarm system replacement.

  Applied Nov 20, 2023 · issued Jan 10, 2024 · completed Jul 17, 2026 · Permit 23 227707 FSU

  Closed

• Addition or alteration · Interior alterations

  Installation of barrier free doors (door hold-open device) & connection to fire alarm pnl

  Applied Jan 24, 2023 · issued Feb 24, 2023 · Permit 23 106700 BLD

  Permit issued

• Plumbing · Backflow prevention devices (Water only)

  Installation of backflow preventer - Cosburn Middle School

  Applied Feb 22, 2018 · issued Mar 22, 2018 · completed May 10, 2019 · Permit 18 120196 PSA

  Closed

• Designated structure · Solar collector

  Proposal for installation of a rooftop photovoltaic array on an existing building

  Applied Aug 17, 2016 · issued Sep 9, 2016 · completed Nov 12, 2018 · Permit 16 208319 DST

  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

• 22 Lankin Blvd · Minor variance

  To construct a new one-storey detached ancillary building (to contain a one-car garage), in the rear yard of the existing one-storey detached dwelling. The existing rear detached garage will be demolished.

  200 m away · filed Apr 1, 2026 · Approved

• 40 Lankin Blvd · Minor variance

  To alter the existing one-storey detached dwelling by constructing a complete second storey addition (the front and rear portions will be cantilevered), with a new partially covered front porch, and a second storey balcony on the west side.

  140 m away · filed Jan 13, 2026 · Approved

• 46 Lankin Blvd · Minor variance

  To construct a new two-storey detached dwelling with a front covered porch with stairs, a front integral garage, a rear first floor deck with stairs, and a rear basement walkout.

  110 m away · filed Dec 19, 2025 · Approved

• 161 Durant Ave · Minor variance

  To alter the existing one-storey detached dwelling by constructing a one-storey side (south) addition and a complete second storey addition. The existing rear sunroom addition will be demolished and replaced with a walkout basement staircase and a deck.

  120 m away · filed Nov 4, 2024 · Approved

• 15 Derwyn Rd · Minor variance

  To alter the existing one-storey detached dwelling (approved under Building Permit No. 20 23 1408363 BLD) by constructing a front covered porch, a complete second storey addition, and a rear two-storey addition with a ground floor deck. There will be one primary unit and one secondary suite (located within the basement) on this lot.

  230 m away · filed Oct 15, 2024 · Approved

• 80 Lankin Blvd · Minor variance

  To construct a new one-storey ancillary building (detached garage) in the rear yard, abutting Plains Road.

  170 m away · filed Oct 8, 2024 · Approved

• 167 Durant Ave · Minor variance

  To alter the existing two-storey detached dwelling by constructing a rear one-storey addition (sunroom), and a rear ground floor deck with stairs. Also, the front portion of the existing one-storey ancillary building (detached garage in the rear yard) will be demolished. This reduced one-car garage will be maintained on-site.

  140 m away · filed May 3, 2024 · Approved

• 24 Northridge Ave · Minor variance

  To alter the existing one-storey detached dwelling by constructing a complete second storey addition, a new front covered porch with stairs, a front basement walkout, and a rear ground floor covered deck with stairs.

  200 m away · filed Jan 12, 2024 · Approved

Everything planned in Toronto-Danforth