45 Blackthorn Ave

Building permits

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

• Small residential project · Multiple projects

  proposed 2 storey rear addition, interior alterations to existing

  Applied Dec 8, 2016 · issued Dec 14, 2016 · Permit 16 261864 BLD

  Revocation pending

• Plumbing

  Plumbing - proposed 2 storey rear addition, interior alterations to existing

  Applied Dec 8, 2016 · issued Dec 14, 2016 · Permit 16 261864 PLB

  Revocation pending

• Small residential project · Multiple projects

  Proposed construction to rebuild front veranda and construct a new covered veranda and basement walkout to an existing detached single family dwelling.

  Applied Apr 18, 2011 · issued Apr 28, 2011 · Permit 11 177358 BLD

  Inspections under way

• Small residential project · Garage

  Proposed detached garage in rear yard of existing detached dwelling.

  Applied Mar 3, 2011 · issued Mar 7, 2011 · completed Nov 23, 2025 · Permit 11 137510 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

• 20-36 Caledonia Road and 1500-1536 St Clair Avenue West

  17 storeys · Mixed use

  240 m away · Condominium · Under review · filed Oct 25, 2021

  Under review

• 1613 St Clair Avenue West

  21 storeys · 330 homes · Mixed use

  260 m away · Rezoning · Under review · filed Dec 18, 2025

  Under review

• 1613 St Clair Avenue West

  17 storeys · 258 homes · Mixed use

  260 m away · Site plan · Under review · filed Jun 24, 2022

  Under review

• 1492 St Clair Avenue West

  18 storeys · 211 homes · Mixed use

  310 m away · Rezoning · Under review · filed Jun 20, 2025

  Under review

Neighbours’ Committee of Adjustment files within 250 m

• 7 Howick Ave · Minor variance

  To legalize and to maintain the rear second storey addition (including a staircase leading to this addition), to the existing two-storey semi-detached dwelling, that was constructed without an authorized building permit.

  130 m away · filed Apr 24, 2026 · Approved

• 20 Howick Ave · Minor variance

  To construct a new three-storey detached dwelling with a covered front porch with stairs, a side (east) second storey patio, a rear ground floor deck, and a rear third storey deck. Also, to construct a rear one-storey detached ancillary building (shed). The existing front yard parking pad and driveway will be removed.

  180 m away · filed Apr 9, 2026 · Approved

• 66 Silverthorn Ave · Minor variance

  To alter the existing two-storey semi-detached dwelling by replacing the front yard parking space with an exterior staircase (which will lead to all levels and the rooftop).

  200 m away · filed Jun 24, 2025 · Approved

• 37 Blackthorn Ave · Minor variance

  To alter the existing two-storey detached dwelling by constructing a partial rear third storey addition, and a front third storey rooftop deck (above the second storey portion of the dwelling).

  20 m away · filed Jun 13, 2025 · Approved

• 37 Blackthorn Ave · Minor variance

  To alter the existing two-storey detached dwelling by constructing a third storey addition with a deck (above a portion of the second storey of this dwelling).

  20 m away · filed Aug 22, 2024 · Approved

• 1649 St Clair Ave W · Minor variance

  To alter the existing two-storey mixed-use building by constructing a complete third storey addition, a rear cantilevered three-storey addition, a rear integral garage, and a rooftop deck. The existing ground floor commercial space will be maintained and unaltered. One residential dwelling unit will occupy the front second and third storeys as well as the rear three-storey addition.

  160 m away · filed Nov 6, 2023 · Approved

• 24 Silverthorn Ave · Minor variance

  To convert the existing one-and-one-half-storey detached dwelling into a three-storey triplex by constructing a front one-storey addition, a partial rear one-storey addition, second and third storey additions, front and rear second storey balconies, a front third storey balcony, a rear ground floor deck and a rear basement walkout. Also, to convert the existing one-storey ancillary building (detached garage, in the rear yard) into a two-storey garden suite by constructing a second storey addition and removing the existing parking space.

  200 m away · filed Jul 25, 2023 · Approved

• 60 Blackthorn Ave · Minor variance

  To alter the existing two-storey detached dwelling by constructing a two-storey rear addition, a rear raised deck with stairs, and an ancillary structure (shed) in the rear yard.

  70 m away · filed Oct 6, 2022 · Approved

Everything planned in Davenport