thepermitmap

Street · 3050 of 8,565 by permit count

Building permits on Derrydown Rd

The City of Toronto has 56 building permits on record for Derrydown Rd, going back to 1999. Those permits created 4 homes and removed 0, a net change of +4. Declared construction value totals $2.9M. The most recent permit was issued Nov 24, 2025 at 164 Derrydown Rd.

Permits on record
561999–2025
Declared construction value
$2.9Mas filed, not adjusted
Homes created
4dwelling units
Homes removed
0net +4

Permits issued per year

20002025 (part year)

Most common work

  • Back Water Valve (Sewer only)10 · 18%
  • Building Permit Related(PS)8 · 14%
  • Building Permit Related(MS)7 · 13%
  • Multiple Projects5 · 9%
  • Backflow Prevention Devices (Water only)3 · 5%
  • Other(PS)3 · 5%
  • Building Permit Related (DR)2 · 4%
  • Solar Collector2 · 4%
  • Second Suite (New)2 · 4%
  • Interior Alterations2 · 4%
  • Other(SR)2 · 4%
  • Canopy1 · 2%

Structures worked on

  • SFD - Detached27 · 48%
  • 2 Unit - Detached8 · 14%
  • Elementary School8 · 14%
  • Secondary School6 · 11%
  • 3+ Unit - Detached4 · 7%
  • SFD - Semi-Detached1 · 2%
  • Apartment Building1 · 2%
  • Group Home1 · 2%

Most recent permits

Issued Work What was filed Value Status
Nov 24, 2025 Building Permit Related (DR) Drain - Proposal for converting the basement into two units and a second storey addition to the third unit of the existing single family dwelling. Open
Nov 21, 2025 Building Permit Related(PS) Plumbing - Proposal for converting the basement into two units and a second storey addtion to the third unit fo the existing single family dwelling. Open
Oct 23, 2025 Building Permit Related(MS) HVAC - Proposal for converting the basement into two units and a second storey addtion to the third unit fo the existing single family dwelling. Open
Sep 25, 2025 Multiple Projects Proposal for converting the basement into two units and a second storey addition to the third unit of the existing single family dwelling. $250K Open
Jul 18, 2025 Building Permit Related(MS) Rev 01 - Addition of washroom on the main floorHVAC - Proposal to recognize as-built second suite. Closed
Jul 14, 2025 Second Suite (New) Rev 01 - Addition of washroom on the main floorProposal to recognize as-built second suite. Closed
Jul 10, 2025 Building Permit Related(PS) Rev 01 - Addition of washroom on main floorPlumbing - Proposal to recognize as-built second suite. Closed
Dec 17, 2024 Other(SR) PROPOSAL FOR REPAIR TO SFD DUE TO VEHICLE IMPACT DAMAGE $10K Closed
May 14, 2024 Back Water Valve (Sewer only) Installation of a backwater valve Closed
Apr 26, 2022 Backflow Prevention Devices (Water only) Install a 2" backflow prevention device $2K Closed
Mar 29, 2022 Second Suite (New) Proposal for interior alterations to add a 2nd suite in the basement of an existing 1 storey detached dwelling. $60K Closed
Mar 29, 2022 Building Permit Related(PS) Plumbing - Proposal for interior alterations to add a 2nd suite in the basement of an existing 1 storey detached dwelling. Closed
Jan 27, 2021 Addition(s) Proposal to enclose the front porch of an existing 1 storey SFD-semi dwelling. $2K Open
Jan 14, 2021 Multiple Projects Revision 03 - Revised interior alterations to basment to include second suiteRevision #02 - existing 15 min. horizontal separation at ground floor split level to remain, relocate laundry closet, relocate mechanical room. Revision #01 - Changes to the basement accessory basement apartment. Interior c Open
Dec 3, 2020 Multiple Projects Rev 01: Eliminate the proposed furnace in order to keep the existing furnace for the existing home and propose a smaller furnace for the addition alone.Proposal to construct a new 2nd storey addition with finished basement at the rear of the property Open
Sep 29, 2020 Building Permit Related(MS) HVAC - Interior changes on basement level to create second suite Closed
Sep 24, 2020 Building Permit Related(PS) Plumbing - Proposal to construct a new 2nd storey addition with finished basement at the rear of the property Closed
Sep 24, 2020 Building Permit Related(MS) HVAC - Proposal to construct a new 2nd storey addition with finished basement at the rear of the property Closed
Sep 4, 2020 Fire Damage repair fire damage to attached garage Closed
Jun 1, 2020 Building Permit Related(PS) Plumbing - Interior changes on basement level to create second suite Closed
Nov 1, 2019 Building Permit Related (DR) Drain - Interior alterations to existing basement, washroom and laundry room - not to be used as a second dwelling unit Closed
Nov 1, 2019 Interior Alterations Interior alterations to existing basement, washroom and laundry room - not to be used as a second dwelling unit $1K Closed
Nov 1, 2019 Building Permit Related(PS) Plumbing - Interior alterations to existing basement, washroom and laundry room - not to be used as a second dwelling unit Closed
Oct 21, 2019 Back Water Valve (Sewer only) Proposal to install back water valve. Closed
Oct 22, 2018 Solar Collector Proposal to remove and reinstall existing photovoltaic system on existing rooftop $55K Open
Aug 17, 2018 Re-Roofing/Re-Cladding Structural roof repairs - Derrydown Public School $400K Open
Mar 26, 2018 Back Water Valve (Sewer only) Proposal to install a new back water valve Closed
Feb 28, 2018 Building Permit Related(PS) Plumbing - INSTALL A NEW UNIVERSAL WASHROOM, AND AUTO DOOR OPERATORS Closed
Feb 28, 2018 Building Permit Related(MS) HVAC - INSTALL A NEW UNIVERSAL WASHROOM, AND AUTO DOOR OPERATORS Closed
Feb 26, 2018 Multiple Projects INSTALL A NEW UNIVERSAL WASHROOM, AND AUTO DOOR OPERATORS $150K Closed
Dec 12, 2017 Back Water Valve (Sewer only) Proposal to install back water valve Closed
Jun 9, 2015 Building Permit Related(MS) HVAC - Proposal for interior alterations to kindergarten room "A' in existing secondary school - "Derrydown PS" Closed
Jun 9, 2015 Interior Alterations Proposal for interior alterations to kindergarten room "A' in existing secondary school - "Derrydown PS" $120K Closed
Mar 12, 2015 Solar Collector Permit to install 1000m2 of Photovoltaic Solar Panels on roof of existing TDSB school. $42K Closed
Aug 14, 2013 Back Water Valve (Sewer only) Installation of two main-line in or out back water valve $2K Closed
Aug 12, 2013 Sprinklers Installation of sprinkler system within new addition to elementary school $47K Closed
Aug 9, 2013 Back Water Valve (Sewer only) Installation of 2 backwater valves $2K Closed
Aug 9, 2013 Back Water Valve (Sewer only) Full port main line back water valve $3K Closed
Aug 2, 2013 Back Water Valve (Sewer only) Installation of 4" full port backwater valve on main line $2K Closed
Jul 23, 2013 Back Water Valve (Sewer only) Full port main line back water valve and sump pump $2K Closed

The 40 most recent of 56 permits on record. Figures come from the City’s active and cleared permit datasets, refreshed daily — what that covers, and what it misses.

Source
City of Toronto Open Data
Dataset
Building permits, active + cleared
Records
56
City refresh
2026-09-12 10:24
Page built
2026-09-12
Sheet
STR-085