Structure · 21 of 153 by permit count
2 Unit - Semi-detached building permits in Toronto
The City of Toronto has 6,649 building permits on 2 unit - semi-detached structures on record for Toronto, going back to 2002. Those permits created 1,395 homes and removed 29, a net change of +1,366. Declared construction value totals $195.7M. The most recent permit was issued Sep 10, 2026 at 5 Chalkfarm Dr.
- Permits on record
- 6,6492002–2026
- Declared construction value
- $195.7Mas filed, not adjusted
- Homes created
- 1,395dwelling units
- Homes removed
- 29net +1,366
Permits issued per year
20022026 (part year)
Most common work
Structures worked on
Most recent permits
| Issued | Address | Work | What was filed | Value | Status |
|---|---|---|---|---|---|
| Sep 10, 2026 | 5 Chalkfarm Dr | Building Permit Related(PS) | Plumbing - Proposal to convert SFD into a 2 Unit Dwelling with a proposed window and enlarge window in basement. | — | Open |
| Sep 10, 2026 | 174 Lansdowne Ave | Building Permit Related(MS) | HVAC - Interior renovation to convert single dwelling to a duplex dwelling | — | Open |
| Sep 10, 2026 | 80 Lamb Ave | Building Permit Related(PS) | Plumbing - Proposal for interior alterations to relocate the washroom in the basement and replace the existing clay interior sanitary drain pipe with PVC | — | Open |
| Sep 10, 2026 | 5 Chalkfarm Dr | Building Permit Related (DR) | Drain - Proposal to convert SFD into a 2 Unit Dwelling with a proposed window and enlarge window in basement. | — | Open |
| Sep 10, 2026 | 80 Lamb Ave | Building Permit Related (DR) | Drain - Proposal for interior alterations to relocate the washroom in the basement and replace the existing clay interior sanitary drain pipe with PVC | — | Open |
| Sep 10, 2026 | 174 Lansdowne Ave | Multiple Projects | Interior renovation to convert single dwelling to a duplex dwelling | $150K | Open |
| Sep 10, 2026 | 174 Lansdowne Ave | Building Permit Related(PS) | Plumbing - Interior renovation to convert single dwelling to a duplex dwelling | — | Open |
| Sep 10, 2026 | 40 Pinemore Cres | Second Suite (New) | Revision 01 - New proposed escape window and revised electrical and basement layout.---------------------------------------------------------------------Proposed finished basement as second dwelling unit with existing above grade side yard door as entrance. | — | Open |
| Sep 10, 2026 | 37 Unsworth Ave | Multiple Projects | REV 01: revision per drawingsProposal for a two-storey rear addition with a basement walkout, and the addition of a secondary suite | — | Open |
| Sep 10, 2026 | 5 Chalkfarm Dr | Building Permit Related(MS) | HVAC - Proposal to convert SFD into a 2 Unit Dwelling with a proposed window and enlarge window in basement. | — | Open |
| Sep 10, 2026 | 80 Lamb Ave | Interior Alterations | Convert a single Family Dwelling into a Duplex , interior alterations to relocate the washroom | $40K | Open |
| Sep 9, 2026 | 255 Clinton St | Multiple Projects | Proposal for second storey rear addition, interior alterations, basement underpinning and second suite in the basement and walkout stairs. | $300K | Open |
| Sep 9, 2026 | 255 Clinton St | Building Permit Related(PS) | Plumbing - Proposal for second storey rear addition, interior alterations, basement underpinning and second suite in the basement and walkout stairs. | — | Open |
| Sep 3, 2026 | 20 Marshall St | Interior Alterations | Proposal for interior altertion to existing rear 1-storey | $60K | Closed |
| Sep 3, 2026 | 20 Marshall St | Building Permit Related(PS) | Plumbing - Proposal for interior altertion to existing rear 1-storey | — | Closed |
| Sep 3, 2026 | 181 Walmer Rd | Interior Alterations | Proposal to convert existing three dwelling unit semi to two dwelling units | $155K | Open |
| Sep 3, 2026 | 31 Brookmount Rd | Multiple Projects | Proposal for the replacement of rear second-storey addition. Related to 26 167509 BLD 00 SR. | $20K | Open |
| Sep 3, 2026 | 153 Lisgar St | Building Permit Related(MS) | HVAC - Proposal for rear yard addition, interior alterations, basement underpinning with rear deck and basement walkout. | — | Open |
| Sep 3, 2026 | 181 Walmer Rd | Building Permit Related(PS) | Plumbing - Proposal to convert existing three dwelling unit semi to two dwelling units | — | Open |
| Sep 2, 2026 | 82 Rusholme Rd | Building Permit Related(PS) | Plumbing - Proposed interior alteration to existing rear 2nd and 3rd floor. New roof over rear 2-storey and rear 3rd floor domer. New roof patio over rear 2-storey. | — | Open |
| Sep 2, 2026 | 82 Rusholme Rd | Multiple Projects | Proposed interior alteration to existing rear 2nd and 3rd floor. New roof over rear 2-storey and rear 3rd floor domer. New roof patio over rear 2-storey. | $80K | Open |
| Sep 1, 2026 | 34 Halsey Ave | Multiple Projects | INTERIOR ALTERATION TO EXISTING HOUSE FOR SECONDARY DWELING IN THE BASEMENT. NEW REAR SIDE DECK AND CHANGES TO FRONT PORCH. | $10K | Open |
| Sep 1, 2026 | 45 Peterborough Ave | Interior Alterations | Proposal for Interior Alterations including a new basement unit | $100K | Open |
| Sep 1, 2026 | 45 Peterborough Ave | Building Permit Related(PS) | Plumbing - Proposal for Interior Alterations including a new basement unit | — | Open |
| Sep 1, 2026 | 45 Deforest Rd | Building Permit Related(PS) | Plumbing - Proposed addition to rear and part of 3rd floor, basement secondary unit, interior alterations, rear basement walkout, rear 3rd storey roof deck, rear ground floor deck, side bay windows, front porch enclosure, underpinning to alter the existing two-storey semi-detached dwelling | — | Open |
| Sep 1, 2026 | 45 Peterborough Ave | Building Permit Related (DR) | Drain - Proposal for Interior Alterations including a new basement unit | — | Open |
| Aug 31, 2026 | 30 Davelayne Rd | Building Permit Related(MS) | HVAC - Proposal for interior alterations to construct a secondary suite in the basement. | — | Open |
| Aug 31, 2026 | 35 Wolseley St | Building Permit Related(MS) | HVAC - Proposal for a side yard addition (15.2 m²) and interior alterations (159 m²)., and convert to 2 -units | — | Open |
| Aug 31, 2026 | 29 Ellsworth Ave | Building Permit Related(MS) | REV02: Proposed revision basic renovations to existing loft floor in roofREV 01: Staircase from main to second floor to be replaced and repaired, New washer and dryer Stacked on second floor, Floor joists at kitchen to be repaired or replaced and New separate furnace Located at 2nd floor.HVAC - Prop | — | Open |
| Aug 31, 2026 | 293 Pape Ave | Building Permit Related(PS) | Plumbing - Basement underpinning - new basement apartment - rear 2nd and 3rd floor additions over existing 1 storey, interior alterations, new front walkout | — | Open |
| Aug 31, 2026 | 139 Kingsmount Park Rd | Multiple Projects | Proposal to construct a rear yard addition with rear deck, secondary suite and interior alterations. | $100K | Open |
| Aug 31, 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 | $300K | Open |
| Aug 31, 2026 | 293 Pape Ave | Building Permit Related (DR) | Drain - Basement underpinning - new basement apartment - rear 2nd and 3rd floor additions over existing 1 storey, interior alterations, new front walkout | — | Open |
| Aug 28, 2026 | 228 Major St | Second Suite (New) | REV 01: CONVERT AREA UNDER PORCH AS USEABLE SPACE.Proposal for interior alterations to new Basement Secondary Suite | — | Open |
| Aug 28, 2026 | 316 Garden Ave | Other(SR) | Revision 01 - Revision to building permit 25-223560 BLD 00 SR---------------------------------------------------------Proposal to repair shared retaining wall in front yard. Retaining Wall shared with 314 Garden Ave | — | Open |
| Aug 28, 2026 | 100 Birch Ave | Other(SR) | Build a new retaining wall adjacent to existing retaining wall, 2 feet away from private property line, and removal and replacement of damaged fence. | $10K | Open |
| Aug 27, 2026 | 77 Shanly St | Building Permit Related(PS) | Plumbing - Proposal for additional dwelling unit in basement | — | Open |
| Aug 27, 2026 | 77 Shanly St | Building Permit Related (DR) | Drain - Proposal for additional dwelling unit in basement | — | Open |
| Aug 27, 2026 | 237 Beatrice St | Other(SR) | Proposal for addition of 24x PV solar array to residential property with associated mechanical and electrical equipment, providing 12kW DC production. | $23K | Open |
| Aug 27, 2026 | 30 Davelayne Rd | Building Permit Related(PS) | Plumbing - Proposal for interior alterations to construct a secondary suite in the basement. | — | Open |
The 40 most recent of 6,649 permits on record. Figures come from the City’s active and cleared permit datasets, refreshed daily — what that covers, and what it misses.