thepermitmap

Street · 243 of 8,567 by permit count

Building permits on Ontario St

The City of Toronto has 563 building permits on record for Ontario St, going back to 1989. Those permits created 74 homes and removed 10, a net change of +64. Declared construction value totals $55.0M. The most recent permit was applied for Sep 9, 2026 at 25 Ontario St.

Permits on record
5631989–2026
Declared construction value
$55.0Mas filed, not adjusted
Homes created
74dwelling units
Homes removed
10net +64

Permits issued per year

20002026 (part year)

Most common work

  • Building Permit Related(PS)99 · 18%
  • Building Permit Related(MS)70 · 12%
  • Interior Alterations62 · 11%
  • Multiple Projects50 · 9%
  • Building Permit Related (DR)28 · 5%
  • Party Wall Admin Permits25 · 4%
  • Unknown23 · 4%
  • Backflow Prevention Devices (Water only)17 · 3%
  • Demolition16 · 3%
  • Other(SR)14 · 2%
  • Back Water Valve (Sewer only)13 · 2%
  • Deck10 · 2%

Structures worked on

  • SFD - Townhouse119 · 21%
  • SFD - Semi-Detached92 · 16%
  • Office71 · 13%
  • SFD - Detached70 · 12%
  • Apartment Building48 · 9%
  • Elementary School25 · 4%
  • Unknown23 · 4%
  • Converted House13 · 2%
  • Unspecified9 · 2%
  • Multiple Unit Building8 · 1%
  • 3+ Unit - Townhouse8 · 1%
  • 2 Unit - Detached7 · 1%

Where this street runs

Most recent permits

Issued Work What was filed Value Status
Sep 9, 2026 Interior Alterations Revision 01 - Revision to building permit 26-138522 BLD 00 BA.-------------------------------------------------------------Proposed Interior Alteration - Tenant Fit Out of floors 4-8. Fitout to be for corporate office use Open
Sep 2, 2026 Interior Alterations Proposed interior structural repairs $530K Closed
Aug 31, 2026 Other(BA) Proposed removal and replacement of exterior staircases to residential units. Retaining walls are supporting current staircases and will need to also be removed and replaced. $120K Open
Aug 20, 2026 Building Permit Related(MS) HVAC - Construction of two buildings of 46 and 50 storeys Open
Aug 19, 2026 Building Permit Related(PS) REVISION 1 - as per the inspector's reportPlumbing - Proposed interior alterations to fit out Dental Office - Unit 104 Closed
Aug 18, 2026 Interior Alterations REVISION 2 - as per the inspector's reportProposed interior alterations to fit out Dental Office - Unit 104. Includes adding a new mezzanine. Open
Aug 14, 2026 Site Service Site Services - Construction of two buildings of 46 and 50 storeys $100K Open
Aug 14, 2026 Building Permit Related(PS) Plumbing - Construction of two buildings of 46 and 50 storeys Open
Aug 12, 2026 Partial Permit - Structural Framing Conditional Permit - Part Permit - Construction of two buildings of 46 and 50 storeys with underground parking garage (245 affordable housing units) and townhouses Open
Jul 21, 2026 Building Permit Related(MS) REVISION 1 - as per the inspector's reportHVAC - Proposed interior alterations to fit out Dental Office - Unit 104 Closed
Jul 20, 2026 Building Permit Related(MS) Rev 01 - Proposal to remove Floor 24 from scope of workHVAC - Proposal to perform interior alterations to three floor levels within the building. Open
Jul 9, 2026 Building Permit Related(PS) Rev 01 - Revision to remove floor 24 from scope of workPlumbing - Proposal to perform interior alterations to three floor levels within the building. Open
Jun 19, 2026 Interior Alterations Rev 02 - Revision to remove floor 24 from scope of workRev 01 - Update room to storageProposal to perform interior alterations to three floor levels within the building. Open
Jun 16, 2026 Building Permit Related(PS) Plumbing - Proposed interior alterations for tenant fit-out of floors ground - three (partial ground). Fit-out to be for corporate office use. Open
Jun 16, 2026 Interior Alterations Proposed interior alterations for tenant fit-out of floors ground - three (partial ground). Fit-out to be for corporate office use. $11K Open
Jun 16, 2026 Building Permit Related(FS) FS - Sprinkler Shop Drawing - Proposed interior alterations for tenant fit-out of floors ground - three (partial ground). Fit-out to be for corporate office use. Open
Jun 16, 2026 Building Permit Related (DR) Drain - Construction of two buildings of 46 and 50 storeys Open
Jun 16, 2026 Building Permit Related(MS) HVAC - Proposed interior alterations for tenant fit-out of floors ground - three (partial ground). Fit-out to be for corporate office use. Open
Jun 15, 2026 Building Permit Related(MS) HVAC - Proposal to renovate exisitng boys and girls main floor washrooms and new ceiling in rooms below. Open
Jun 15, 2026 Building Permit Related(PS) Plumbing - Proposal to renovate exisitng boys and girls main floor washrooms and new ceiling in rooms below. Open
Jun 5, 2026 Other(MS) Proposal for ventilation louver & duct retrofit. $192K Open
Jun 4, 2026 Interior Alterations Proposal to renovate existing boys and girls main floor washrooms and new ceiling in rooms below. $400K Open
Jun 1, 2026 Deck Construction of new rooftop wood deck $10K Closed
May 25, 2026 Building Permit Related(MS) HVAC - Proposed Interior Alteration - Tenant Fit Out of floors 4-8. Fitout to be for corporate office use Open
May 25, 2026 Building Permit Related(PS) Plumbing - Proposed Interior Alteration - Tenant Fit Out of floors 4-8. Fitout to be for corporate office use Open
May 20, 2026 Building Permit Related(FS) FS - Sprinkler Shop Drawing - Proposed Interior Alteration - Tenant Fit Out of floors 4-8. Fitout to be for corporate office use Open
May 6, 2026 Partial Permit - Foundation Conditional Permit - Part Permit - Construction of two buildings of 46 and 50 storeys Closed
Feb 23, 2026 Alternative Solution ALTERNATIVE SOLUTION IS PROPOSED TO ADDRESS SURFACE DECK REQUIREMENTS FOR THE COLD PLUNGE IN THE TWO TOWERS OF THE BUILDING. PLEASE REFER TO REPORT BY VORTEX FIRE CONSULTING INC. "VFT25156R02 49 ONTARIO SPA POOL DECK AS 20FEB2026." Closed
Feb 19, 2026 Shoring Revision include removing rakers and installing tiebacks underneath neighbouring property at 474 Adelaide St E.Shoring and excavation to remediate soil contaminants. Open
Feb 12, 2026 Building Permit Related(MS) HVAC - Proposal for roof replacment and makeup air unit replacment. Interior diffuser alterations, and associated electrical work Open
Feb 5, 2026 Interior Alterations Rev 05 - Remove slab opening and associated stairs from level 23.REV: ADD FLOOR 12 AND 13 BACK INTO INITIAL PERMIT 22-115404, PER BUILDING INSPECTOR REQUEST, SEE COVER LETTER IN BLD DWGS.Proposal for interior alterations for an office fit-out for floor levels 12 to 19 in a new building (18-261990) f Open
Jan 12, 2026 Other(BA) Proposal for roof replacment and makeup air unit replacment. Interior diffuser alterations, and associated electrical work $2.0M Open
Jan 2, 2026 Sprinklers PROPOSED MODIFICATION OF EXISTING DRY SPRINKLER SYSTEM AT PARKING LEVELS, MODIFICATIONS TO STANDPIPE SYSTEM, FIRE PUMP REPLACEMENT AND BACKFLOW PREVENTER ADDITION $165K Open
Dec 23, 2025 Sign Building Permit Related 1 WALL SIGN ON WEST ELEVATION**EQ BANK** Open
Dec 10, 2025 Unspecified Deferred Fees from folder 25 259173 (RSN-5747278) ZoningProcess RSN 78639707 Open
Dec 2, 2025 Building Permit Related (DR) Drain - Proposed interior alterations. Proposed bathroom renovation, new laundry & non-load partitions removal in basement, bathroom renovation and new laundry on 1st and 2nd floor, loft stairs corrected reducing in the loft floor space Closed
Dec 2, 2025 Interior Alterations Proposed interior alterations. Proposed bathroom renovation, new laundry & non-load partitions removal in basement, bathroom renovation and new laundry on 1st and 2nd floor, loft stairs corrected reducing in the loft floor space $30K Closed
Dec 2, 2025 Building Permit Related(PS) Plumbing - Proposed interior alterations. Proposed bathroom renovation, new laundry & non-load partitions removal in basement, bathroom renovation and new laundry on 1st and 2nd floor, loft stairs corrected reducing in the loft floor space Closed
Nov 26, 2025 New Building New build
Nov 18, 2025 Fire Alarm Proposal to replace Fire Alarm Panel $300K Open

The 40 most recent of 563 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
563
City refresh
2026-09-13 10:24
Page built
2026-09-13
Sheet
STR-454