Structure · 49 of 153 by permit count
Duplex building permits in Toronto
The City of Toronto has 954 building permits on duplex structures on record for Toronto, going back to 1988. Those permits created 120 homes and removed 70, a net change of +50. Declared construction value totals $27.0M. Half of the 915 permits issued here came through within 22 days of the application. The most recent permit was issued Oct 29, 2026 at 61 Branstone Rd.
- Permits on record
- 9541988–2026
- Declared construction value
- $27.0Mas filed, not adjusted
- Homes created
- 120dwelling units
- Homes removed
- 70net +50
- Typical wait
- 22 days5 days faster than the city
Permits issued per year
20002026 (part year)
Zoning
- Most common zone
- R66.3% of permits · by-law 10.10
- In detached-house zones
- 14.2%23.8% below the city’s 38.0%
- Permits with a zone
- 900of 954 on record
The zoning categories the permits in Duplex fall in, under Zoning By-law 569-2013. These are the City's own category names. This counts permits, not land: it says where the building work happened under which rules, not how the area is carved up. What each zone allows, and what gets built in it.
Most common work
Structures worked on
Postal areas
Most recent permits
| Issued | Address | Work | What was filed | Value | Status |
|---|---|---|---|---|---|
| Oct 29, 2026 | 61 Branstone Rd | Building Permit Related(PS) | Plumbing - Proposal for triplex conversion and interior alterations. - UPDATED TO DUPLEX IN REVISION 1 | — | Open |
| Oct 28, 2026 | 61 Branstone Rd | Building Permit Related(MS) | HVAC - Proposal for triplex conversion and interior alterations. - UPDATED TO DUPLEX IN REVISION 1 | — | Open |
| Oct 6, 2026 | 5A Norwood Rd | Multiple Projects | Rev 01: Revision- convert to a duplexProposal to interior alterations and convert existing 3 storey Triplex back to SFD, construct new basement walk-out, and new rear wood deck | — | Open |
| Sep 24, 2026 | 293 Pape Ave | Multiple Projects | Basement underpinning - new basement apartment - rear 2nd and 3rd floor additions over existing 1 storey, interior alterations, new front walkout- CONVERTING TO A DUPLEX | $300K | Open |
| Aug 28, 2026 | 21 Prince Philip Blvd | Building Permit Related(MS) | HVAC - To convert to a new two-storey detached duplex. Existing 1 storey dwelling will be partially demolished due to fire incident. Demolition of existing exterior walls is less than 50% of total wall area | — | Open |
| Aug 25, 2026 | 38 Flaremore Cres | New Building | To construct a new detached houseplex containing two dwelling units with an integral garage, front porch, rear deck, and front & rear balconies. Work also includes a rear yard ancillary structure (in-ground pool). [Tied to MV file no. A0185/26NY - F&B. Approved on Condition.] | $500K | New build |
| Aug 25, 2026 | 38 Third St | New Building | Proposal for lot severance into two lots, demolishing the existing dwelling and constructing a 2-unit Houseplex with an integral garage, a front porch and balcony, a rear deck, and a rear basement walkouton each lot | $500K | New build |
| Aug 25, 2026 | 38 Third St | New Building | Proposal for lot severance into two lots, demolishing the existing dwelling and constructing a 2-unit Houseplex with an integral garage, a front porch and balcony, a rear deck, and a rear basement walkouton each lot | $500K | New build |
| Aug 14, 2026 | 191 Barker Ave | Addition(s) | Proposal to construct a 2 storey addition at the rear of an existing SFD-detached dwelling.Second suite in basement. | $100K | Open |
| Aug 6, 2026 | 47 St Hubert Ave | New Building | Proposal to construct a new 3-storey detached houseplex (duplex) containing two dwelling units with an integral garage, front yard porch and rear yard deck. Demolish the existing detached 1-storey SFD as well as the rear yard detached garage, gazebo and shed. | $650K | New build |
| Jul 28, 2026 | 702 Lansdowne Ave | Building Permit Related(MS) | HVAC - Proposed two storey rear addition and roof covering between the dwelling and detached garage. | — | Open |
| Jul 2, 2026 | 10 Longspur Rd | New Building | REVISION 01: Proposed revision includes revised roof design, ground floor ceiling height with new bachelor apartment in basement. (Duplex)Proposal to construct a new three storey single family dwelling with integral garage. | — | New build |
| Jun 11, 2026 | 10 Pitfield Rd | New Building | Proposal for 2 storey single family custom dwelling | $950K | New build |
| May 28, 2026 | 18 Kewbeach Ave | Deck | Deck and landscaping steps (to replace existing) | $25K | Open |
| May 13, 2026 | 56 Ferris Rd | Addition(s) | Proposal for 2 storey rear addition to existing 1 storey SFD and convert to a duplex. | $500K | Open |
| Mar 9, 2026 | 15 Springmount Ave | Building Permit Related(MS) | Revision 1: Change to separate systems for each dwelling unit. Radiant infloor heating in basement & separate HRV's for ventilation.HVAC - Proposal to construct a new 2 storey duplex. | — | Open |
| Nov 17, 2025 | 1351 Lansdowne Ave | Interior Alterations | Proposal for interior alterations to convert single family dwelling into a duplex. | $25K | Closed |
| Nov 7, 2025 | 263 Haddington Ave | Building Permit Related(MS) | Rev 01 to HVACHVAC - Proposed construction of a new 2-storey duplex detached building. | — | Open |
| Oct 2, 2025 | 4 Thyra Ave | Multiple Projects | Revision 01: Proposal to keep create second unit in basement (duplex), 3 existing windows in basement floor; , add a new window (4' x 5') in ground floor, all proposed windows are fire rated, floor height readjustment in all floor.Proposal for addition to existing dwelling. | — | Closed |
| Sep 8, 2025 | 269 Woodbine Ave | Building Permit Related(MS) | Revision to use a ductless ashp instead of the approved ducted stystem in the basement.HVAC - Proposed duplex and second floor rear addition | — | Closed |
| Mar 31, 2025 | 263 Haddington Ave | Building Permit Related (DR) | Drain - Proposed construction of a new 2-storey duplex detached building. | — | Open |
| Mar 25, 2025 | 14 Northbrook Rd | New Building | Proposal to construct a new 2 storey duplex | $800K | New build |
| Mar 6, 2025 | 15 Springmount Ave | New Building | REV01 : CHANGES TO WINDOWS AND CORRECTING BUILDING HEIGHT ACCORDING TO SITE CONDITIONS WITH UPDATED REAR DECK STAIRS.Proposal to construct a new 2 storey duplex. | — | New build |
| Jan 13, 2025 | 473 Atlas Ave | Building Permit Related(MS) | HVAC - To convert the existing 1-storey detached house into a duplex by constructing: a front three-storey addition, a front porch, an integral garage, a complete second and third storey addition, side and rear 3-storey additions, a front second storey balcony, rear second and third balcony, a rear | — | Open |
| Jan 9, 2025 | 2 Filbert Gt | Building Permit Related(PS) | Plumbing - Proposal to construct a second-floor addition, front porch, basement walk-out and second unit in the basement. | — | Open |
| Jan 9, 2025 | 2 Filbert Gt | Building Permit Related(MS) | HVAC - Proposal to construct a second-floor addition, front porch, basement walk-out and second unit in the basement. | — | Open |
| Jan 9, 2025 | 2 Filbert Gt | Multiple Projects | Proposal to construct a second-floor addition, front porch, basement walk-out and second unit in the basement. | $400K | Open |
| Dec 4, 2024 | 269 Woodbine Ave | Multiple Projects | Proposed duplex and second floor rear addition | $60K | Closed |
| Nov 26, 2024 | 30 St Dunstan Dr | Other(SR) | REV 01 - minor changes to portions of the 2nd floorProposal for a second floor extension at the rear side of the existing dwelling and a roof extension added with two new Skylight. Conversion to a Duplex. | — | Closed |
| Nov 6, 2024 | 11 Harcourt Ave | Multiple Projects | Proposal to construct 1 storey rear addition with a new deck and new basement walk out, to have interior alterations on basement, first, second and third floors, to propose new front and thirdfloor railings and to convert the basement as a secondary unit. sfd-semi converted to duplex | $450K | Closed |
| Oct 23, 2024 | 104 Northcote Ave | Addition(s) | Proposal to legalize a third storey rear addition with Juliette balconies to existing Duplex.See also 23-123080 STE 09 MV & 23-114357 ZAP | $50K | Open |
| Oct 22, 2024 | 340 Main St | Addition(s) | Proposal to construct a new three storey rear addition to the existing three storey detached Duplex. | $100K | Open |
| Oct 17, 2024 | 77 Roxborough St W | New Building | Demo existing house and build new Duplex | $800K | New build |
| Sep 23, 2024 | 11 Patterson Ave | Multiple Projects | Proposal to convert an existing Detached House (1 dwelling unit) into a Duplex (2 dwelling units). Basement level will contain the new dwelling unit which includes the adjacent garage area that will be converted to habitable space. Scope incl. int. & ext. alts. [Violation on file - 2nd dwelling unit | $50K | Open |
| Aug 8, 2024 | 357 Margueretta St | Addition(s) | Proposed 2nd floor addition to existing two unit dwelling | $35K | Open |
| Jul 24, 2024 | 41 Corinne Cres | Interior Alterations | (28 June 2024) no longer pursuing triplex and changes to duplex. confirmed by the applicant - SWProposal to basement and ground floor to convert existing single family dwelling into a three-unit dwelling. | $40K | Closed |
| Jul 18, 2024 | 95 Bellefair Ave | Building Permit Related(MS) | HVAC - Proposal for front second floor addition, interior alterations, cladding and new roof. | — | Open |
| Jul 12, 2024 | 95 Bellefair Ave | Building Permit Related (DR) | Drain - Proposal for front second floor addition, interior alterations, cladding and new roof. | — | Open |
| Jul 12, 2024 | 95 Bellefair Ave | Building Permit Related(PS) | Plumbing - Proposal for front second floor addition, interior alterations, cladding and new roof. | — | Open |
| Jun 28, 2024 | 23 Twin Pauls Cres | Multiple Projects | Proposal to construct a 2nd-storey and rear addition to create a second unit (duplex), interior alterations (basement and main floor), new below grade basement walkout, new front porch and rear deck. | $300K | Closed |
The 40 most recent of 954 permits on record. Figures come from the City’s active and cleared permit datasets, refreshed daily — what that covers, and what it misses.