thepermitmap

Street · 895 of 8,567 by permit count

Building permits on Lowther Ave

The City of Toronto has 205 building permits on record for Lowther Ave, going back to 1988. Those permits created 11 homes and removed 1, a net change of +10. Declared construction value totals $15.6M. The most recent permit was applied for Aug 21, 2026 at 33 Lowther Ave.

Permits on record
2051988–2026
Declared construction value
$15.6Mas filed, not adjusted
Homes created
11dwelling units
Homes removed
1net +10

Permits issued per year

20002026 (part year)

Most common work

  • Building Permit Related(PS)37 · 18%
  • Multiple Projects26 · 13%
  • Building Permit Related(MS)24 · 12%
  • Unknown22 · 11%
  • Interior Alterations15 · 7%
  • Addition(s)12 · 6%
  • Other(BA)8 · 4%
  • Building Permit Related (DR)7 · 3%
  • Party Wall Admin Permits6 · 3%
  • Other(SR)6 · 3%
  • Garage4 · 2%
  • Backflow Prevention Devices (Water only)3 · 1%

Structures worked on

  • SFD - Detached85 · 41%
  • SFD - Semi-Detached42 · 20%
  • Apartment Building24 · 12%
  • Unknown22 · 11%
  • SFD - Townhouse8 · 4%
  • 3+ Unit - Semi-detached5 · 2%
  • Converted House5 · 2%
  • Multiple Unit Building4 · 2%
  • 3+ Unit - Detached4 · 2%
  • Place of Worship2 · 1%
  • Sprinklers1 · 0%
  • Boarding/Lodging House1 · 0%

Most recent permits

Issued Work What was filed Value Status
Aug 21, 2026 Building Permit Related(PS) Plumbing - INTERIOR ALTERATIONS, LOWERING AND EXTENDING OF BASEMENT & REAR THIRD FLOOR ADDITION OF 48.2m², MAINTAIN EXISTING HEIGHT Open
Aug 21, 2026 Party Wall Admin Permits UNDERPINNING SHARED PARTY WALL & RETAINING WALL ON PROPERTY LINE FOR STAIRS AT 33 AT REAR Open
Aug 21, 2026 Multiple Projects INTERIOR ALTERATIONS, LOWERING AND EXTENDING OF BASEMENT & REAR THIRD FLOOR ADDITION OF 48.2m², MAINTAIN EXISTING HEIGHT $1.0M Open
Mar 31, 2026 Building Permit Related(PS) Plumbing - Proposal for interior alterations to the second and third floors of an existing three-storey dwelling Open
Mar 20, 2026 Interior Alterations Proposal for interior alterations to the second and third floors of an existing three-storey dwelling $100K Open
Jan 16, 2026 Window Replacement Proposal for replacement of existing glazing systems such as punched and bay window wall,the replacement of the existing roofing systems above the bay window wall projections, and the replacement of the glazing units within the existing sloped glazing systems within Phase 1 Work. $1.9M Open
Dec 15, 2025 New Building REV02: Proposal for revision to revise front and rear yard landscaping. Note: No proposed revisions to dwellingRev 01 - Revision to excavate space in basement below the garageProposed construction of a new 3-storey detached dwelling from a newly severed lot. New build
Oct 8, 2025 Multiple Projects Proposal to construct third floor addtion, reduce second floor and complete interior alterations. $500K Open
Oct 8, 2025 Building Permit Related(PS) Plumbing - Proposal to construct sixth floor addtion, reduce third floor and complete interior alterations. Open
Oct 8, 2025 Building Permit Related(MS) HVAC - Proposal to construct sixth floor addtion, reduce third floor and complete interior alterations. Open
Sep 19, 2025 Party Wall Admin Permits Proposal for party wall permit for work related to 83 lowther Ave. $1K Closed
Sep 19, 2025 Party Wall Admin Permits Proposal for party wall permit for work related to 83 lowther Ave. $1K Closed
Jul 22, 2025 Fire Alarm Proposal for replacement of Fire Alarm Control Panel and remote annunciator on Ground Floor only $20K Closed
Nov 26, 2024 Multiple Projects Proposal to construct a rear 1 storey addition with a second storey roof deck as well as a new ancillary building (one-storey detached garage) in the rear yard of the property.See also 22 21157 ZAP and 23 110712 MV. $500K Closed
Nov 26, 2024 Building Permit Related(PS) Plumbing - Proposal to construct a rear 1 storey addition with a second storey roof deck as well as a new ancillary building (one-storey detached garage) in the rear yard of the property.See also 22 21157 ZAP and 23 110712 MV. Closed
Sep 17, 2024 Other(SR) proposed interiro alterations, additions to all floors + garage $450K Closed
Sep 9, 2024 Building Permit Related (DR) Drain - proposed interiro alterations, additions to all floors Closed
Sep 9, 2024 Building Permit Related(PS) Plumbing - proposed interiro alterations, additions to all floors Closed
Aug 30, 2024 Back Water Valve (Sewer only) Proposal to install a back water valve Closed
Aug 7, 2024 Back Water Valve (Sewer only) Proposal for a backwater valve Closed
Jun 24, 2024 Building Permit Related(MS) HVAC - Interior alterations to existing dwelling including basement underpinning Closed
Jun 5, 2024 Building Permit Related(MS) Revision 01: revision to HVACHVAC - Alter existing 4 unit House - relocate bedroom and bathroom unit 1 - relocate bedrooms and bathroom unit 2 - relocate bedroom and bathrooms unit 3 - relocate bedrooms and bathroom and kitchen unit 4New HVAC system and plumbing alterations Closed
Apr 3, 2024 Other(BA) Proposed local masonry and local concrete repairs $45K Closed
Mar 8, 2024 Building Permit Related(PS) Plumbing - Alter existing 4 unit House - relocate bedroom and bathroom unit 1 - relocate bedrooms and bathroom unit 2 - relocate bedroom and bathrooms unit 3 - relocate bedrooms and bathroom and kitchen unit 4New HVAC system and plumbing alterations Closed
Mar 7, 2024 Interior Alterations Alter existing 4 unit House - relocate bedroom and bathroom unit 1 - relocate bedrooms and bathroom unit 2 - relocate bedroom and bathrooms unit 3 - relocate bedrooms and bathroom and kitchen unit 4New HVAC system and plumbing alterations $500K Closed
Nov 8, 2023 Multiple Projects Interior alterations to existing dwelling including basement underpinning $2.3M Closed
Oct 3, 2023 Back Water Valve (Sewer only) Supply and install sanitary line BWV Closed
Aug 28, 2023 Interior Alterations ALTER STAIRCASE TO EXISTING UNITS $40K Closed
Mar 22, 2023 Electromagnetic Locks Installation of 1 new maglock located at the main entrance vestibule facing Lowther Avenue. $2K Open
Oct 31, 2022 Balcony/Guard Repairs Balcony rehabilitation and guard replacement (optional) to an Existing Apartment Building. $100K Closed
Sep 19, 2022 Other(BA) Proposal to construct a new barrier free ramp and install a new power door operator in an existing place of worship. $20K Open
Apr 29, 2022 Multiple Projects Rev 02: Alterations to windows as per site conditions Closed
Jul 8, 2021 Backflow Prevention Devices (Water only) install backflow device ( BACK WATER VALVE INSTALLATION) $2K Closed
May 19, 2020 Interior Alterations Proposal for interior alterations to convert rooming house to a single family dwelling with Kosher kitchen in the basement. $20K Closed
Mar 11, 2020 Pool Fence Enclosure Proposal for pool fence enclosure $2K Closed
Jan 21, 2020 Interior Alterations Proposal for minor interior alterations to the ground floor for the removal of a non-load bearing wall. $3K Closed
Oct 8, 2019 Garage Proposal to construct a rear detached garage for existing sfd-detached $50K Closed
Aug 21, 2019 Building Permit Related(MS) HVAC - Proposed construction of a new 3-storey detached dwelling from a newly severed lot. Closed
Aug 7, 2019 Building Permit Related(MS) HVAC - Proposed third floor addition (4.41m2), interior alterations (458.3m2), basement finishing (175.2m2), underpinning (35.9m), rear deck and front porch. Closed
Jun 14, 2019 Building Permit Related(PS) Plumbing - Proposed third floor addition (4.41m2), interior alterations (458.3m2), basement finishing (175.2m2), underpinning (35.9m), rear deck and front porch. Closed

The 40 most recent of 205 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
205
City refresh
2026-09-13 10:24
Page built
2026-09-13
Sheet
STR-848