146 Blackthorn Ave

Building permits

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

• Plumbing

  Plumbing - Interior alteration in basement to construct second suite.

  Applied Dec 18, 2014 · issued Jan 2, 2015 · completed Nov 24, 2020 · Permit 14 264797 PLB

  Closed

• Drains and site services

  Drain - Interior alteration in basement to construct second suite.

  Applied Dec 18, 2014 · issued Jan 2, 2015 · completed Nov 24, 2020 · Permit 14 264797 DRN

  Closed

• Small residential project · Interior alterations

  Interior alteration in basement to construct second suite.

  Applied Dec 16, 2014 · issued Jan 2, 2015 · completed Dec 9, 2020 · Permit 14 264797 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

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

  Under review

Neighbours’ Committee of Adjustment files within 250 m

• 88 Howick Ave · Minor variance

  To alter the existing two-storey detached dwelling by constructing a rear two-storey addition (including a basement level), a rear first floor deck with stairs, and a rear second floor rooftop deck.

  240 m away · filed Aug 10, 2026 · Hearing scheduled

• 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.

  190 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.

  130 m away · filed Apr 9, 2026 · Approved

• 113 Silverthorn Ave · Minor variance

  To alter the existing one-storey ancillary building (detached one-car garage) by constructing a rooftop deck (above the existing garage), and rooftop access stairs at the west side of the building.

  110 m away · filed Jul 15, 2025 · Refused

• 249 Silverthorn Ave · Minor variance

  To alter the existing two-storey detached dwelling by constructing a rear two-storey addition, new front and rear covered verandahs with stairs, front and rear basement walkouts, and front and rear second storey balconies. Also, to construct a new two-storey detached ancillary building (containing one garden suite which will occupy both levels), in the rear yard of the property. There will be a total of four residential dwelling units on this lot (three dwelling units within the main house and one dwelling unit within the ancillary building).

  240 m away · filed Jul 10, 2024 · Approved

• 28 Gilbert Ave · Minor variance

  To legalize and to maintain the existing side (north) second storey addition (above the rear covered porch), which was constructed without an authorized building permit. Also, to maintain the enclosed front porch, the side (north) carport canopy and parking space, the rear canopy, and the rear one-storey ancillary buildings (sheds).

  230 m away · filed Mar 28, 2024 · 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.

  250 m away · filed Oct 6, 2022 · Approved

• 139 Prescott Ave · Minor variance

  To alter the existing two-storey semi-detached dwelling by constructing a rear two-storey addition. There are two residential units within this dwelling.

  130 m away · filed Sep 12, 2022 · Approved

Everything planned in Davenport