Street · 408 of 8,516 by permit count
Building permits on Blackthorn Ave
The City of Toronto has 388 building permits on record for Blackthorn Ave, going back to 1993. Those permits created 39 homes and removed 3, a net change of +36. Declared construction value totals $11.7M. Half of the 361 permits issued here came through within 13 days of the application. The most recent permit was applied for Oct 20, 2026 at 388 Blackthorn Ave.
- Permits on record
- 3881993–2026
- Declared construction value
- $11.7Mas filed, not adjusted
- Homes created
- 39dwelling units
- Homes removed
- 3net +36
- Typical wait
- 13 days14 days faster than the city
Permits issued per year
20002026 (part year)
Zoning
- Most common zone
- R53.9% of permits · by-law 10.10
- In detached-house zones
- 0.0%38.0% below the city’s 38.0%
- Permits with a zone
- 388of 388 on record
The zoning categories the permits on Blackthorn Ave 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.
Minor variances at the Committee of Adjustment
- Applications on record
- 21since 2016
Some projects on Blackthorn Ave need the Committee of Adjustment to approve a minor variance from the zoning by-law before a building permit can be applied for at all. Where that applies, the committee’s clock runs first and the permit wait above starts only once it has stopped. How variances work, and the approval rates.
Most common work
Structures worked on
Postal areas
Where this street runs
Weston-Pelham Park 209 permits
Keelesdale-Eglinton West 179 permits
Other streets in M6N
Tarragona Blvd422 permits
Silverthorn Ave399 permits
Viella St384 permits
Algarve Cres283 permits
Prescott Ave218 permits
Old Weston Rd215 permits
Laughton Ave213 permits
Mulock Ave186 permits
Looking for one address on Blackthorn Ave? The address lookup shows every permit filed against a single house or building number.
Most recent permits
| Issued | Work | What was filed | Value | Status |
|---|---|---|---|---|
| Oct 20, 2026 | Building Permit Related(MS) | REV 1: changes to Mechanical system and basement planHVAC - Proposal for a 2 storey rear addition, new 2nd floor addition, interior alterations, rear deck and a 2nd suite in the basement. See also 24 157785 ZAP | — | Open |
| Oct 20, 2026 | Multiple Projects | Rev 2: - changes to Mechanical system and basement planRevision #1 - changes to structural elements onlyProposal for a 2 storey rear addition, new 2nd floor addition, interior alterations, rear deck. See also 24 157785 ZAP | — | Open |
| Sep 29, 2026 | Demolition | Proposal to demolish existing dwelling to construct new detached houseplex and garden suite in rear yard | — | Demolition |
| Sep 29, 2026 | Building Permit Related (DR) | Drain - Proposed 4plex | — | Open |
| Sep 29, 2026 | New Building | Proposed 4plex | $1.1M | New build |
| Sep 29, 2026 | Building Permit Related(PS) | Plumbing - Proposed 4plex | — | Open |
| Sep 29, 2026 | Building Permit Related(MS) | HVAC - Proposed 4plex | — | Open |
| Sep 28, 2026 | New Laneway / Rear Yard Suite | Proposed rear 2-storey garden suite | $250K | Open |
| Sep 28, 2026 | Building Permit Related(MS) | HVAC - Proposed rear 2-storey garden suite | — | Open |
| Sep 28, 2026 | Building Permit Related (DR) | Drain - Proposed rear 2-storey garden suite | — | Open |
| Sep 28, 2026 | Building Permit Related(PS) | Plumbing - Proposed rear 2-storey garden suite | — | Open |
| Sep 17, 2026 | Building Permit Related (DR) | Drain - Proposal for underpinning and addition at rear and a new unit. | — | Open |
| Sep 17, 2026 | Multiple Projects | Proposal for three-storey rear addition, third storey front addition, rear deck and stairs, rear walkout, and lower level underpinning. Also proposed 2nd unit in the lower level. | $150K | Open |
| Sep 17, 2026 | Building Permit Related(PS) | Plumbing - Proposal for underpinning and addition at rear and a new unit. | — | Open |
| Aug 17, 2026 | Addition(s) | REV02: Proposed structural changes on 1st, 2nd & 3rd floor, skylight size change and pergola on third floor.Revisions to the 3rd floor Proposal for 3rd floor addition. | — | Open |
| Aug 6, 2026 | Party Wall Admin Permits | Admin party wall permit for proposed work at 356 Blackthorn Avenue. | $1K | Open |
| May 20, 2026 | Building Permit Related(PS) | Plumbing Revision 01 - Changes to interior renovation on main-floor.------------------------------------------------------Plumbing - Rear addition, interior work in basement | — | Open |
| May 5, 2026 | Multiple Projects | Revision 02 - Changes to interior renovation on main-floor.------------------------------------------------------REVISION 1: Add second storey to proposed rear addition.Proposal for a rear addition and interior work in the basement of the existing single family dwelling. | — | Open |
| Feb 19, 2026 | Multiple Projects | Drawings prepared for order to comply 25 262587 WNP 00 VI. | $5K | Open |
| Jan 21, 2026 | Building Permit Related(PS) | Plumbing - Proposal to convert fully detached dwelling to 4 units, interior alterations in basement, first and second floor and underpinning. | — | Closed |
| Jan 6, 2026 | Interior Alterations | Proposal for remove load bearing walls, and install LVL beams. | $15K | Closed |
| Jan 5, 2026 | Multiple Projects | Revision 01: interior alterations and removal of fire rated ceiling. Proposal to convert fully detached dwelling to 4 units, interior alterations in basement, first and second floor and underpinning. | — | Closed |
| Nov 17, 2025 | Addition(s) | Proposal to enclose front porch area and repair roof and railings damage. | $18K | Closed |
| Aug 22, 2025 | Building Permit Related(PS) | Plumbing - Proposal for a 2 storey rear addition, new 2nd floor addition, interior alterations, rear deck and a 2nd suite in the basement. See also 24 157785 ZAP | — | Open |
| Aug 1, 2025 | Interior Alterations | Proposal for interior alterations: add a shower shall in the first floor power room and revise layout of kitchen and rear entry to allow homeowner to stay on the first floor. | $100K | Closed |
| Aug 1, 2025 | Building Permit Related(PS) | Plumbing - Proposal for interior alterations: add a shower shall in the first floor power room and revise layout of kitchen and rear entry to allow homeowner to stay on the first floor. | — | Closed |
| Jun 16, 2025 | Multiple Projects | Proposal to enclose the existing rear concrete porch and make interior alterations. | $30K | Closed |
| Mar 28, 2025 | Building Permit Related(PS) | Plumbing - Proposal for 3rd floor addition. | — | Open |
| Mar 28, 2025 | Building Permit Related(MS) | HVAC - Proposal for 3rd floor addition. | — | Open |
| Dec 13, 2024 | Building Permit Related(MS) | HVAC Rev 01 - Proposed New Laneway / Rear Yard Suite (91.63sqm) | — | Open |
| Nov 29, 2024 | Building Permit Related(MS) | REVISION 1: Add second storey to proposed rear addition.HVAC - Proposal for a rear addition and interior work in the basement of the existing single family dwelling. | — | Open |
| Nov 7, 2024 | Building Permit Related(MS) | Rev 01 - New HVAC drawings are attached, with revised equipment spec's to suit the new condition.HVAC - Renovation and addition to existing two-storey residential single family dweling. | — | Open |
| Oct 21, 2024 | Multiple Projects | Rev 01 - Wall type #1 and #5 are being revised to accommodate onsite as built conditions. New HVAC drawings are attached, with revised equipment spec's to suit the new condition.Renovation and addition to existing two-storey residential single family dweling. | — | Open |
| Oct 10, 2024 | Back Water Valve (Sewer only) | Installation of a new backwater valve connecting to existing City sanitary system. | — | Closed |
| Jul 24, 2024 | Back Water Valve (Sewer only) | Back Water Valve | — | Closed |
| Apr 26, 2024 | Building Permit Related(PS) | Plumbing - Renovation and addition to existing two-storey residential single family dweling. | — | Open |
| Mar 20, 2024 | Addition(s) | proposal for second storey rear addition | $30K | Closed |
| Mar 20, 2024 | Building Permit Related(PS) | Plumbing - proposal for second storey rear addition | — | Closed |
| Mar 20, 2024 | Building Permit Related(MS) | HVAC - proposal for second storey rear addition | — | Closed |
| Mar 13, 2024 | Multiple Projects | Interior Alteration to accomodate 3rd unit at the 2nd floor (triplex). | $10K | Closed |
The 40 most recent of 388 permits on record. Figures come from the City’s active and cleared permit datasets, refreshed daily — what that covers, and what it misses.
Every address on Blackthorn Ave with a permit on record · 147
- 21 Blackthorn Ave1 permit · to 2009
- 33 Blackthorn Ave4 permits · to 2002
- 35 Blackthorn Ave3 permits · to 2024
- 37 Blackthorn Ave7 permits · to 2026
- 42 Blackthorn Ave2 permits · to 2020
- 44 Blackthorn Ave6 permits · to 2022
- 45 Blackthorn Ave4 permits · to 2016
- 47 Blackthorn Ave2 permits · to 2018
- 49 Blackthorn Ave2 permits · to 2004
- 52 Blackthorn Ave1 permit · to 1999
- 53 Blackthorn Ave2 permits · to 2010
- 54 Blackthorn Ave1 permit · to 2001
- 60 Blackthorn Ave8 permits · to 2024
- 63 Blackthorn Ave1 permit · to 2012
- 71 Blackthorn Ave1 permit · to 2018
- 75 Blackthorn Ave1 permit · to 2017
- 77 Blackthorn Ave12 permits · to 2018
- 79 Blackthorn Ave1 permit · to 2018
- 82 Blackthorn Ave1 permit · to 2022
- 83 Blackthorn Ave1 permit · to 2001
- 85 Blackthorn Ave1 permit · to 2007
- 86 Blackthorn Ave3 permits · to 2004
- 88 Blackthorn Ave2 permits · to 2020
- 89 Blackthorn Ave2 permits · to 2005
- 92 Blackthorn Ave3 permits · to 2018
- 93 Blackthorn Ave3 permits · to 2025
- 95 Blackthorn Ave5 permits · to 1996
- 96 Blackthorn Ave1 permit · to 2014
- 98 Blackthorn Ave4 permits · to 2022
- 101 Blackthorn Ave1 permit · to 2004
- 102 Blackthorn Ave1 permit · to 2024
- 104 Blackthorn Ave1 permit · to 2001
- 106 Blackthorn Ave1 permit · to 2015
- 111 Blackthorn Ave1 permit · to 2005
- 114 Blackthorn Ave1 permit · to 2003
- 115 Blackthorn Ave1 permit · to 2001
- 116 Blackthorn Ave1 permit · to 2013
- 117 Blackthorn Ave6 permits · to 2021
- 119 Blackthorn Ave3 permits · to 2022
- 121 Blackthorn Ave3 permits · to 2022
- 124 Blackthorn Ave1 permit · to 2020
- 144 Blackthorn Ave1 permit · to 2000
- 145 Blackthorn Ave3 permits · to 2022
- 146 Blackthorn Ave3 permits · to 2015
- 147 Blackthorn Ave2 permits · to 2006
- 148 Blackthorn Ave2 permits · to 2020
- 152 Blackthorn Ave2 permits · to 2007
- 154 Blackthorn Ave1 permit · to 2002
- 156 Blackthorn Ave4 permits · to 2010
- 157 Blackthorn Ave1 permit · to 2016
- 165 Blackthorn Ave2 permits · to 2004
- 167 Blackthorn Ave3 permits · to 2018
- 173 Blackthorn Ave5 permits · to 2004
- 183 Blackthorn Ave4 permits · to 2026
- 184 Blackthorn Ave1 permit · to 2020
- 187 Blackthorn Ave3 permits · to 2024
- 193 Blackthorn Ave2 permits · to 2002
- 196 Blackthorn Ave2 permits · to 2016
- 208 Blackthorn Ave1 permit · to 2019
- 210 Blackthorn Ave5 permits · to 2024
- 211 Blackthorn Ave1 permit · to 2010
- 213 Blackthorn Ave2 permits · to 2004
- 214 Blackthorn Ave3 permits · to 2020
- 215 Blackthorn Ave1 permit · to 2003
- 216 Blackthorn Ave6 permits · to 2016
- 218 Blackthorn Ave1 permit · to 2016
- 219 Blackthorn Ave1 permit · to 2012
- 221 Blackthorn Ave2 permits · to 2012
- 223 Blackthorn Ave2 permits · to 2001
- 226 Blackthorn Ave2 permits · to 2005
- 232 Blackthorn Ave1 permit · to 2007
- 245 Blackthorn Ave1 permit · to 2014
- 247 Blackthorn Ave1 permit · to 2022
- 248 Blackthorn Ave1 permit · to 2012
- 249 Blackthorn Ave2 permits · to 2021
- 251 Blackthorn Ave1 permit · to 2021
- 256 Blackthorn Ave4 permits · to 2015
- 257 Blackthorn Ave1 permit · to 2003
- 258 Blackthorn Ave3 permits · to 2019
- 260 Blackthorn Ave1 permit · to 2026
- 262 Blackthorn Ave5 permits · to 2014
- 264 Blackthorn Ave1 permit · to 2001
- 265 Blackthorn Ave5 permits · to 2003
- 269 Blackthorn Ave1 permit · to 2002
- 273 Blackthorn Ave2 permits · to 2000
- 274 Blackthorn Ave1 permit · to 2016
- 275 Blackthorn Ave3 permits · to 2005
- 281 Blackthorn Ave1 permit · to 2003
- 295 Blackthorn Ave3 permits · to 2017
- 307 Blackthorn Ave4 permits · to 2003
- 310 Blackthorn Ave1 permit · to 2000
- 311 Blackthorn Ave3 permits · to 2015
- 316 Blackthorn Ave1 permit · to 2011
- 318 Blackthorn Ave1 permit · to 2001
- 320 Blackthorn Ave4 permits · to 2021
- 322 Blackthorn Ave1 permit · to 2021
- 323 Blackthorn Ave6 permits · to 2005
- 326 Blackthorn Ave2 permits · to 2018
- 329 Blackthorn Ave1 permit · to 2019
- 332 Blackthorn Ave1 permit · to 2019
- 338 Blackthorn Ave1 permit · to 2009
- 340 Blackthorn Ave1 permit · to 2017
- 341 Blackthorn Ave1 permit · to 2019
- 342 Blackthorn Ave3 permits · to 2017
- 343 Blackthorn Ave9 permits · to 2026
- 344 Blackthorn Ave1 permit · to 2013
- 345 Blackthorn Ave2 permits · to 2021
- 349 Blackthorn Ave2 permits · to 2009
- 350 Blackthorn Ave13 permits · to 2009
- 351 Blackthorn Ave8 permits · to 2026
- 355 Blackthorn Ave1 permit · to 2009
- 356 Blackthorn Ave3 permits · to 2026
- 357 Blackthorn Ave3 permits · to 2021
- 358 Blackthorn Ave1 permit · to 2026
- 359 Blackthorn Ave4 permits · to 2018
- 361 Blackthorn Ave3 permits · to 2022
- 362 Blackthorn Ave4 permits · to 2011
- 365 Blackthorn Ave2 permits · to 2006
- 370 Blackthorn Ave2 permits · to 2016
- 372 Blackthorn Ave1 permit · to 2006
- 382 Blackthorn Ave1 permit · to 2000
- 384 Blackthorn Ave4 permits · to 2024
- 386 Blackthorn Ave4 permits · to 2018
- 388 Blackthorn Ave5 permits · to 2026
- 390 Blackthorn Ave1 permit · to 2010
- 391 Blackthorn Ave7 permits · to 2004
- 393 Blackthorn Ave7 permits · to 2019
- 397 Blackthorn Ave1 permit · to 2026
- 401 Blackthorn Ave1 permit · to 2007
- 402 Blackthorn Ave8 permits · to 2025
- 405 Blackthorn Ave1 permit · to 2012
- 411 Blackthorn Ave8 permits · to 2024
- 412 Blackthorn Ave1 permit · to 2008
- 414 Blackthorn Ave1 permit · to 2025
- 421 Blackthorn Ave1 permit · to 2000
- 423 Blackthorn Ave2 permits · to 2009
- 425 Blackthorn Ave3 permits · to 2006
- 441 Blackthorn Ave4 permits · to 2022
- 443 Blackthorn Ave4 permits · to 2022
- 447 Blackthorn Ave1 permit · to 2007
- 449 Blackthorn Ave1 permit · to 2003
- 455 Blackthorn Ave1 permit · to 2007
- 457 Blackthorn Ave2 permits · to 2001
- 459 Blackthorn Ave6 permits · to 2019
- 541 Blackthorn Ave7 permits · to 2018
- 564 Blackthorn Ave3 permits · to 2015
- 575 Blackthorn Ave1 permit · to 2008