312 St Clair Ave E

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 underpinning and interior alterations to the basement of an existing 3 storey SFD-detached dwelling.

  Applied Nov 8, 2019 · issued Nov 19, 2019 · Permit 19 202751 HVA

  Inspections under way

• Drains and site services

  Drain - Proposal for underpinning and interior alterations to the basement of an existing 3 storey SFD-detached dwelling.

  Applied Aug 8, 2019 · issued Aug 22, 2019 · completed Oct 30, 2019 · Permit 19 202751 DRN

  Closed

• Small residential project · Multiple projects

  Proposal for underpinning and interior alterations to the basement of an existing 3 storey SFD-detached dwelling.

  Applied Aug 8, 2019 · issued Aug 22, 2019 · Permit 19 202751 BLD

  Inspections under way

• Plumbing

  Plumbing - Proposal for underpinning and interior alterations to the basement of an existing 3 storey SFD-detached dwelling.

  Applied Aug 8, 2019 · issued Aug 22, 2019 · Permit 19 202751 PLB

  Inspections under way

• Drains and site services · Back water valve (Sewer only)

  Proposed Back Water Valve (Sewer only)

  Applied Mar 7, 2019 · issued Mar 7, 2019 · completed Mar 8, 2019 · Permit 19 122976 DRN

  Closed

• Small residential project · Interior alterations

  Proposed First and Second floor interior Alteration of Single Family Dwelling.

  Applied Aug 25, 2017 · issued Sep 5, 2017 · completed Sep 11, 2018 · Permit 17 222894 BLD

  Closed

• Plumbing

  Plumbing - Proposed First and Second floor interior Alteration of Single Family Dwelling.

  Applied Aug 25, 2017 · issued Sep 5, 2017 · completed Sep 11, 2018 · Permit 17 222894 PLB

  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

• 280 St Clair Ave E · Minor variance

  140 m away · filed Sep 24, 2026 · Accepted

• 67 Welland Ave · Minor variance

  To alter the existing two-and-one-half-storey detached dwelling by constructing a third storey north side dormer addition.

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

• 99 Glenrose Ave · Minor variance

  To construct a new three-storey detached dwelling (houseplex) with a front ground floor landing with stairs, a rear basement walkout, and three rear platforms (stair landings on all three levels) with rear exterior staircases (leading to all levels). Also, to construct a new rear two-storey detached ancillary building containing one garden suite, and a side (east) permeable paver walkway connecting the ancillary building with the front sidewalk. There will be a total of seven residential dwelling units on this lot (six units within the main building, and one unit within the ancillary building…

  230 m away · filed May 29, 2026 · Hearing scheduled

• 181 Glenrose Ave · Minor variance

  To alter the existing three-storey detached dwelling by constructing a rear third storey rooftop terrace (above the two-storey portion of the dwelling at the southeast corner).

  170 m away · filed Mar 30, 2026 · Approved

• 323 Mount Pleasant Rd · Minor variance

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

  170 m away · filed Mar 23, 2026 · Approved

• 112 Rose Park Dr · Minor variance

  To construct a new rear two-storey detached ancillary building (containing one garden suite) with basement, a side (west) cantilevered second storey, and a side (north) one-car carport structure. Also, to reconstruct the side (west) driveway, and demolish the existing carport (within City¿s Right-of-Way), abutting Mount Pleasant Road. There will be a total of two residential dwelling units on this lot (one unit occupying the main dwelling, and one unit occupying the ancillary building).

  190 m away · filed Mar 18, 2026 · Approved

• 271 St Clair Ave E · Minor variance

  To construct a new three-storey detached dwelling (duplex) with a front porch and stairs, a front integral garage (including a car lift for a total of two parking spaces), a rear basement walkout with stairs, a rear ground floor deck with stairs, a front third floor balcony, and a rear third floor terrace (partially covered with a canopy). Also, to construct a new one-storey detached ancillary building (office space), in the rear yard. There will be a total of two residential dwelling units on this lot.

  150 m away · filed Dec 2, 2025 · Approved

• 225 Glenrose Ave · Consent

  To obtain consent to sever the property into two residential lots.

  240 m away · filed Aug 18, 2025 · Application withdrawn

Everything planned in University-Rosedale