423 Markham St

Building permits

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

• Heating and ventilation

  HVAC - Proposal for basement walk-out and front porch underpinning

  Applied Jul 23, 2024 · issued Aug 6, 2024 · completed Apr 19, 2026 · Permit 22 234511 HVA

  Closed

• Small residential project · Multiple projects

  Revision 02 to permit # 22 234511 - 2 storey rear addition and basement unit nterior renovation and underpinning. Revision to permit # 22 234511 (370 sm int reno, 20.57m underpinning)

  Applied Dec 12, 2023 · issued Feb 2, 2024 · completed May 4, 2026 · 1 home added · Permit 22 234511 BLD (revision 02)

  Closed

• Plumbing

  Plumbing - Proposal for basement walk-out and front porch underpinning

  Applied Apr 27, 2023 · issued Dec 18, 2023 · completed Apr 19, 2026 · Permit 22 234511 PLB

  Closed

• Small residential project · Multiple projects

  Nterior renovation and underpinning. Revision to permit # 22 234511 (370 sm int reno, 20.57m underpinning)

  Applied Apr 27, 2023 · issued Jun 2, 2023 · completed May 4, 2026 · Permit 22 234511 BLD (revision 01)

  Closed

• Drains and site services

  Drain - Proposal for basement walk-out and front porch underpinning

  Applied Apr 27, 2023 · issued Aug 2, 2023 · completed Apr 19, 2026 · Permit 22 234511 DRN

  Closed

• Small residential project · Multiple projects

  Proposal for basement walk-out and front porch underpinning

  Applied Nov 29, 2022 · issued Feb 1, 2023 · completed May 4, 2026 · Permit 22 234511 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

• 541 Euclid Ave · Minor variance

  210 m away · filed Sep 17, 2026 · Accepted

• 390 Markham St · Minor variance

  To alter the existing two-and-one-half-storey semi-detached dwelling by constructing a rear one-storey sunroom addition. The existing rear one-storey partial addition will be demolished.

  240 m away · filed Aug 17, 2026 · Hearing scheduled

• 202 Lippincott St · Minor variance

  To alter the existing three-storey mixed-used semi-detached building by constructing a rear second storey rooftop deck with a rear exterior staircase, a rear basement walkout, and a rear ground floor patio. Also, to construct a new rear two-storey detached ancillary building (to contain one laneway suite with a basement level and a rooftop deck with rear stairs), abutting Antonio Fernandes Lane and Ulster Street. There will be a total of one commercial unit (laundromat within the main mixed-use building) and six residential dwelling units on this lot (five units within the main mixed-use buil…

  220 m away · filed May 4, 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).

  170 m away · filed Oct 30, 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…

  170 m away · filed May 7, 2025 · Approved

• 390 Palmerston Blvd · Minor variance

  Please refer to A0096/25TEY.

  220 m away · filed Feb 5, 2025 · Application withdrawn

• 390 Palmerston Blvd · Minor variance

  To alter the existing two-and-one-half-storey detached dwelling by constructing a rear two-storey addition with front and side (south) basement walkouts, a complete third storey addition with front and rear terraces, and a rear ground floor deck with stairs. Also, to alter the existing one-storey ancillary building (detached garage in the rear yard, abutting the laneway) by constructing a complete second storey addition (to contain one laneway suite). There will be a total of four residential dwelling units on this lot (three units within the main dwelling (triplex) and one unit within the an…

  220 m away · filed Feb 5, 2025 · Approved

• 202 Lippincott St · Minor variance

  To alter the existing three-storey semi-detached dwelling by constructing a rear exterior basement entrance, and a staircase (leading to the second storey deck). Also, to alter the existing two-storey ancillary building by constructing a complete third storey addition with a rear balcony and a rooftop deck. This ancillary building will contain one laneway suite, abutting Ulster Street. There will be a total of six residential dwelling units (five units within the main dwelling and one unit within the ancillary building) on this lot.

  220 m away · filed Aug 17, 2024 · Refused

Everything planned in University-Rosedale