12 Alton Ave

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 to construct rear two storey addition and second floor roof deck. Proposal includes interior alterations to basement and second floor and bench footing. Existing building is single family detached dwelling. Ground floor deck not included in application.

  Applied Oct 3, 2011 · issued Oct 18, 2011 · completed Jun 27, 2025 · Permit 11 247736 HVA

  Closed

• Small residential project · Multiple projects

  Proposal to construct rear two storey addition and second floor roof deck. Proposal includes interior alterations to basement and second floor and bench footing. Existing building is single family detached dwelling. Ground floor deck not included in application.

  Applied Jul 28, 2011 · issued Aug 29, 2011 · Permit 11 247736 BLD

  Inspections under way

• Plumbing

  Plumbing - Proposal to construct rear two storey addition and second floor roof deck. Proposal includes interior alterations to basement and second floor and bench footing. Existing building is single family detached dwelling. Ground floor deck not included in application.

  Applied Jul 28, 2011 · issued Aug 29, 2011 · completed Jun 27, 2025 · Permit 11 247736 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

• 46-52 Laing Street

  7 storeys · 227 homes · Residential

  180 m away · Site plan · Approved · filed Dec 23, 2022

  Approved

• 1233-1243 Queen Street East and 77 Leslie Street

  9 storeys · 142 homes · Mixed use

  200 m away · Site plan · Approved · filed Mar 17, 2022

  Approved

• 880-882 Eastern Avenue and 80 Knox Avenue

  12 storeys · 167 homes · Mixed use

  250 m away · Site plan · Under review · filed May 4, 2022

  Under review

• 20 Leslie Street

  Mixed use

  470 m away · Rezoning · Under appeal · filed Jun 23, 2025

  Under appeal

Neighbours’ Committee of Adjustment files within 250 m

• 25 Hiltz Ave · Minor variance

  To permit and maintain the existing front (west) staircase and platform (leading to the front enclosed porch) that was partially constructed beyond an authorized building permit (Permit No.19 229066 BLD 00 SR). The existing front enclosed porch and front third-storey balcony on the three-storey detached dwelling will be maintained and unaltered.

  180 m away · filed Dec 18, 2025 · Refused

• 19 Alton Ave · Minor variance

  To alter the existing two-storey semi-detached dwelling by constructing a front covered porch extension, and a rear two-storey addition with a deck and stairs.

  50 m away · filed Nov 25, 2025 · Approved

• 1320 Queen St E · Minor variance

  To alter the existing two-storey semi-detached residential dwelling by constructing a rear one-storey addition, a front basement walkout with stairs, a rear ground floor deck with stairs, and a rear second storey rooftop deck Also, to convert the existing semi-detached residential dwelling into a mixed-use building by constructing interior alterations for a new commercial unit in the basement and a new third residential dwelling unit on the first storey. There will be a total of three residential dwelling units on this lot.

  70 m away · filed Jul 24, 2025 · Approved

• 43 Hastings Ave · Minor variance

  To legalize and to maintain the front porch, which was constructed without an authorized building permit.

  110 m away · filed Oct 8, 2024 · Approved

• 56 Greenwood Ave · Minor variance

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

  250 m away · filed Sep 20, 2024 · Approved

• 47 Laing St · Minor variance

  To alter the existing legal non-conforming one-and-one-half-storey detached dwelling by constructing complete second and third storey additions, a three-storey side (south) addition, rear additions to the second and third storeys above a new rear ground floor deck, and a rear basement walkout. Also, to reconstruct the existing driveway (containing two parking spaces), in the rear yard, abutting Sears Street.

  220 m away · filed Sep 10, 2024 · Approved

• 99 Knox Ave · Minor variance

  To construct a new three-storey semi-detached dwelling (fourplex) with a covered front porch with stairs, rear second and third floor decks with rear access stairs (fire escape), and a front basement walkout. Also, to construct a one-storey semi-detached ancillary building (for one garden suite) with a canopy over the front entrance, in the rear yard of the property. There will be a total of five dwelling units on this lot (four units within the main dwelling and one unit within the ancillary building).

  230 m away · filed Aug 2, 2024 · Approved

• 99 Knox Ave · Minor variance

  To construct a new three-storey semi-detached dwelling (fourplex) with a covered front porch with stairs, rear second and third floor decks with rear access stairs (fire escape), and a front basement walkout. Also, to construct a one-storey semi-detached ancillary building (for one garden suite) with a canopy over the front entrance, in the rear yard of the property. There will be a total of five dwelling units on this lot (four units within the main dwelling and one unit within the ancillary building).

  230 m away · filed Aug 2, 2024 · Approved

Everything planned in Toronto-Danforth