458 Markham St

Building permits

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

• Addition or alteration · Interior alterations

  Construct interior alterations to convert an existing dental office into 3 new residential units (on ground floor) to create a 6-unit apartment building. Refer to related CofA application and ZZC Certificate. Prior records indicate an existing building as a dental office with 3 dwelling units.

  Applied Jun 29, 2021 · completed May 2, 2025 · 3 homes added · Permit 21 177370 BLD

  Cancelled

• Plumbing

  Plumbing - Construct interior alterations to convert an existing dental office into 3 new residential units to create a 6-unit apartment building.

  Applied Jun 29, 2021 · completed May 2, 2025 · Permit 21 177370 PLB

  Cancelled

• Heating and ventilation

  HVAC - Proposed interior alterations to convert an existing dental office into 2 new residential units to create a 6-unit apartment building.

  Applied May 3, 2021 · completed May 14, 2021 · Permit 21 127324 HVA

  Cancelled

• Addition or alteration · Interior alterations

  Proposed interior alterations to convert an existing dental office into 2 new residential units to create a 6-unit apartment building.

  Applied Mar 15, 2021 · completed May 14, 2021 · Permit 21 127324 BLD

  Cancelled

• Plumbing

  Plumbing - Proposed interior alterations to convert an existing dental office into 2 new residential units to create a 6-unit apartment building.

  Applied Mar 15, 2021 · completed May 14, 2021 · Permit 21 127324 PLB

  Cancelled

• Plumbing · Backflow prevention devices (Water only)

  Proposal to install 1 backflow prevention device to existing office and 3-unit building.

  Applied Sep 23, 2008 · issued Sep 23, 2008 · completed Jun 8, 2026 · Permit 08 206220 PSA

  Closed (dormant)

Committee of Adjustment

This address's applications to the City's Committee of Adjustment since 2017, and any still open. A minor variance asks for a small exception to the zoning by-law, such as a little more height or a smaller setback; a consent divides a lot or grants an easement.

• Minor variance · Other

  To convert the existing commercial unit within the 2-½ storey lawful-non-conforming mixed use building into two residential units to establish a six-unit residential apartment building.

  Decision: Approved (hearing Mar 3, 2021)

  Filed Sep 16, 2020 · File A0799/20TEY

  Closed

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

• 541 Euclid Ave · Minor variance

  200 m away · filed Sep 17, 2026 · Accepted

• 501 Palmerston Blvd · Minor variance

  To construct a new four-storey apartment building with front and rear basement walkouts, front and rear ground floor landings with stairs, front and rear balconies located on the second and third storeys, and front and rear fourth storey rooftop decks. There will be a total of three short-term bicycle parking spaces at the rear of the main building. Also, to construct a new rear two-storey detached ancillary building (containing one garden suite), including stairs at the west side of the ancillary building. There will be a total of 13 residential dwelling units on this lot (12 dwelling units…

  220 m away · filed Aug 7, 2026 · Hearing scheduled

• 501 Palmerston Blvd · Minor variance

  To construct a new three-storey apartment building with front and rear ground floor entrance stairs, front and rear balconies located on the second and third levels, front and rear basement walkouts, and rooftop staircase access enclosures. Also, to construct a new rear two-storey detached ancillary building (containing one garden suite) with stairs at the west side of the ancillary building. There will be a total of nine residential dwelling units on the lot (eight dwelling units within the apartment building and one dwelling unit within the ancillary building).

  220 m away · filed Feb 9, 2026 · Approved

• 248 Lippincott St · Minor variance

  To alter the existing two-and-one-half-storey detached dwelling by constructing a partial rear third storey addition, and a rear second storey deck above the existing rear one-storey portion of the dwelling. Also, to construct a new one-storey detached ancillary building (containing a one car garage), in the rear yard, abutting the laneway (James Hales Lane).

  220 m away · filed Oct 30, 2025 · Approved

• 501 Palmerston Blvd · Minor variance

  To construct a new three-storey apartment building with front and rear ground floor stairs (for three front and three rear entrances), two front and two rear second floor balconies, two front and two rear third floor balconies, two side (north) basement walkouts, and rooftop staircase access enclosure. Also, to convert the existing rear one-storey ancillary building (garage) into one garden suite by constructing a second story addition, a two-storey addition at the southwest portion of the building (with a complete basement addition below), and stairs at the west side of the building. There w…

  220 m away · filed Sep 22, 2025 · Refused

• 514 Markham St · Minor variance

  To alter the existing two-and-one-half-storey semi-detached dwelling by constructing a partial rear third storey addition.

  230 m away · filed Aug 14, 2025 · Approved

• 509 Palmerston Blvd · Minor variance

  To construct a new three-storey detached dwelling (fourplex), a front porch with stairs (Unit A entrance), a front second storey balcony (to be occupied by Unit A), a third storey side (north) balcony (to be occupied by Unit C), a rear ground floor walkout and stairs (Unit D entrance) and a rear third storey balcony (to be occupied by Unit D). There will be a total of four residential dwelling units on this lot.

  240 m away · filed May 27, 2025 · Approved

• 404 Palmerston Blvd · Minor variance

  To alter the three-storey detached dwelling (containing three dwelling units) with a front covered porch, front basement walkout, rear ground floor patio, and partially covered rear third floor rooftop terrace (on the roof of the second floor below), currently under construction, by constructing a rear basement addition below the rear ground floor patio. Also, to maintain the two-storey ancillary building (containing a two-car garage and one laneway suite) (currently under construction, as approved by Minor Variance Application A0793/23TEY). There will be a total of four residential dwelling…

  180 m away · filed May 7, 2025 · Approved

Everything planned in University-Rosedale