thepermitmap

Street · 3031 of 8,567 by permit count

Building permits on Northumberland St

The City of Toronto has 57 building permits on record for Northumberland St, going back to 1995. Those permits created 2 homes and removed 0, a net change of +2. Declared construction value totals $811K. The most recent permit was issued Sep 11, 2024 at 34 Northumberland St.

Permits on record
571995–2024
Declared construction value
$811Kas filed, not adjusted
Homes created
2dwelling units
Homes removed
0net +2

Permits issued per year

20002024 (part year)

Most common work

  • Building Permit Related(PS)9 · 16%
  • Multiple Projects8 · 14%
  • Party Wall Admin Permits5 · 9%
  • Building Permit Related (DR)5 · 9%
  • Back Water Valve (Sewer only)5 · 9%
  • Unknown4 · 7%
  • Building Permit Related(MS)4 · 7%
  • Alteration to Existing Building3 · 5%
  • Underpinning3 · 5%
  • Addition(s)2 · 4%
  • Interior Demolition1 · 2%
  • Deck1 · 2%

Structures worked on

  • SFD - Detached19 · 33%
  • 2 Unit - Semi-detached11 · 19%
  • SFD - Semi-Detached11 · 19%
  • Unknown4 · 7%
  • Laneway / Rear Yard Suite4 · 7%
  • SFD - Townhouse3 · 5%
  • Other2 · 4%
  • Converted House1 · 2%
  • Underpinning1 · 2%
  • Residential Porches1 · 2%

Most recent permits

Issued Work What was filed Value Status
Sep 11, 2024 Building Permit Related (DR) Drain - PROPOSED 1 STOREY GARDEN SUITE W/ FINISHED BASEMENT1st Floor Area =20.21 m2, Basement Area 20.21m2 Closed
Sep 11, 2024 New Laneway / Rear Yard Suite PROPOSED 1 STOREY GARDEN SUITE W/ FINISHED BASEMENT1st Floor Area =20.21 m2, Basement Area 20.21m2 $200K Closed
Sep 11, 2024 Building Permit Related(PS) Plumbing - PROPOSED 1 STOREY GARDEN SUITE W/ FINISHED BASEMENT1st Floor Area =20.21 m2, Basement Area 20.21m2 Closed
Sep 11, 2024 Building Permit Related(MS) HVAC - PROPOSED 1 STOREY GARDEN SUITE W/ FINISHED BASEMENT1st Floor Area =20.21 m2, Basement Area 20.21m2 Closed
Aug 29, 2024 Party Wall Admin Permits Partywall administration permit in relation to 34 NORTHUMBERLAND ST for new garden suite (24 190383 BLD 00 SR) Closed
Apr 27, 2023 Back Water Valve (Sewer only) Install BWV Closed
Oct 18, 2022 Underpinning Proposal for foundation underpinning and localized masonry repairs to address deterioration in the existing row townhouse. $30K Closed
Oct 13, 2021 Deck Proposal to construct exterior deck on the second floor including a new patio door to deck. $2K Open
May 6, 2021 Canopy Proposal to construct a canopy over the existing front porch. $3K Closed
Oct 27, 2020 Building Permit Related (DR) Drain - Proposal to underpin the foundation and interior alterations to the ground and basement levels of an existing 3 storey semi dwelling with 2 units. Closed
Oct 27, 2020 Party Wall Admin Permits Party wall admin permit in regards to 3 Northumberland St #20-207220 Closed
Oct 27, 2020 Building Permit Related(PS) Plumbing - Proposal to underpin the foundation and interior alterations to the ground and basement levels of an existing 3 storey semi dwelling with 2 units. Open
Oct 27, 2020 Multiple Projects Proposal to underpin the foundation and interior alterations to the ground and basement levels of an existing 3 storey semi dwelling with 2 units. Refer to related admin party wall permit. $45K Open
Aug 31, 2018 Multiple Projects Revision #1: Revison and as built for floor framing, modify existing roof and exterior wall openingsProposal to construct a two storey addition, interior alterations and secondary suiteunderpinning Closed
Aug 31, 2018 Party Wall Admin Permits Administrative party wall permit for revised proposal at 6 Northumberland St (18-113907 01) Closed
Jun 29, 2018 Building Permit Related (DR) Drain - Proposal to construct a two storey addition, interior alterations and secondary suiteunderpinning Closed
Jun 29, 2018 Building Permit Related(PS) Plumbing - Proposal to construct a two storey addition, interior alterations and secondary suiteunderpinning Closed
Feb 28, 2018 Party Wall Admin Permits Proposed administrative permit for underpinning at 6 Northumberland St. Closed
Feb 28, 2018 Party Wall Admin Permits Proposed administration permit for demolition at 6 Northumberland St. Closed
Feb 28, 2018 Building Permit Related(MS) HVAC - Proposal to construct a two storey addition, interior alterations and secondary suite Closed
Feb 2, 2018 Multiple Projects Proposal to construct a two storey addition, interior alterations and secondary suite $150K Closed
Jan 18, 2018 Interior Alterations Revision: 3 Revised fire shutter quantities and locations. Closed
Jun 15, 2017 Multiple Projects REVISION #2- layout changes as per the drawings. See also 17-166340 UNS.Underpinning, interior alteratins to ground floor. (Existing addition on back of home was built in the 1970's on a concrete strip foundation. The addition has settled to the point where it currently has a 2% slope away from the Open
Feb 22, 2017 Building Permit Related(PS) Plumbing - To alter the existing 2½-storey semi-detached dwelling containing two dwelling units by constructing: a partial two-storey rear addition and rooftop deck, and a one-storey rear addition with ground floor deck. Open
Feb 7, 2017 Back Water Valve (Sewer only) Proposal to install a back water valve. Closed
Feb 3, 2017 Addition(s) To alter the existing 2½-storey semi-detached dwelling containing two dwelling units by constructing: a partial two-storey rear addition and rooftop deck, and a one-storey rear addition with ground floor deck. $60K Open
Jan 24, 2017 Building Permit Related (DR) Drain - Proposal for bench footing in the basement Closed
Nov 17, 2016 Underpinning Proposal for bench footing in the basement $30K Closed
Nov 17, 2016 Building Permit Related(PS) Plumbing - Basement benching Closed
Sep 13, 2016 Back Water Valve (Sewer only) Back Water Valve (Sewer only) Closed
Feb 5, 2015 Back Water Valve (Sewer only) Proposal to install a 4" full port backwater valve on the main line Closed
Sep 4, 2014 Building Permit Related (DR) Drain - Proposed basement underpinning Closed
Sep 4, 2014 Underpinning Proposed basement underpinning $20K Closed
Sep 4, 2014 Building Permit Related(PS) Plumbing - Proposed basement underpinning Closed
Jun 19, 2014 Back Water Valve (Sewer only) Installation of one fullport mainline backwater valve and to replace the drain in the basement. Closed
Jun 13, 2012 Multiple Projects Proposal to construct a rear first floor deck and to build a second floor rear deck on the existing two-unit two-storey detached dwelling. Refer to ZZC and CofA files. $25K Open
Apr 3, 2012 Backflow Prevention Devices (Water only) Proposal to install one backwater valve in existing single family detached dwelling. $3K Closed
Jul 9, 2008 Building Permit Related(MS) HVAC - Interior alterations to all floors to convert from mixed use to SFD. Closed
Apr 10, 2008 Multiple Projects Interior alterations to GF and 2nd floor. $60K Closed
Apr 10, 2008 Building Permit Related(MS) HVAC - Interior alterations to GF and 2nd floor. Closed

The 40 most recent of 57 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
57
City refresh
2026-09-13 10:24
Page built
2026-09-13
Sheet
STR-735