Street · 5152 of 8,516 by permit count
Building permits on Costain Ave
The City of Toronto has 23 building permits on record for Costain Ave, going back to 2001. Those permits created 1 homes and removed 0, a net change of +1. Declared construction value totals $278K. Half of the 20 permits issued here came through within 3 days of the application. The most recent permit was issued Sep 17, 2026 at 6 Costain Ave.
- Permits on record
- 232001–2026
- Declared construction value
- $278Kas filed, not adjusted
- Homes created
- 1dwelling units
- Homes removed
- 0net +1
- Typical wait
- 3 days24 days faster than the city
Permits issued per year
20012026 (part year)
Most common work
Structures worked on
Postal areas
Other streets in M4E
Walter St30 permits
Selwood Ave28 permits
Pine Glen Rd27 permits
Glen Manor Dr E24 permits
Kildonan Rd21 permits
Alfresco Lwn19 permits
Avion Ave19 permits
Bonfield Ave18 permits
Looking for one address on Costain 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 |
|---|---|---|---|---|
| Sep 17, 2026 | Building Permit Related(PS) | Plumbing - Proposal for basement interior alterations and underpinning. | — | Open |
| Sep 17, 2026 | Multiple Projects | Proposal for basement interior alterations and underpinning. | $40K | Open |
| Sep 17, 2026 | Building Permit Related (DR) | Drain - Proposal for basement interior alterations and underpinning. | — | Open |
| May 19, 2021 | Back Water Valve (Sewer only) | install BWV | — | Closed |
| May 6, 2021 | Multiple Projects | Revision to - skylight framing, front window framing side second floor window framing.Proposal for interior alterations to an existing two storey dwelling. | — | Closed |
| Apr 28, 2021 | Building Permit Related(MS) | HVAC - Proposal for interior alterations to an existing two storey dwelling. | — | Closed |
| Apr 21, 2021 | Multiple Projects | Renovations of the existing detached two storey dwelling to create a secondary suite in the basement and renovate first floor. | $150K | Closed |
| Apr 21, 2021 | Building Permit Related(PS) | Plumbing - Renovations of the existing detached two storey dwelling to create a secondary suite in the basement and renovate first floor. | — | Closed |
| Apr 21, 2021 | Building Permit Related(MS) | HVAC - Renovations of the existing detached two storey dwelling to create a secondary suite in the basement and renovate first floor. | — | Closed |
| Apr 12, 2021 | Building Permit Related(PS) | Plumbing - Proposal for alterations to the basement for a new secondary suite, a new side yard basement walkout stair, with interior alterations to the ground floor of an existing two storey dwelling. | — | Closed |
| Nov 25, 2019 | Back Water Valve (Sewer only) | Proposed Back Water Valve (Sewer only). | — | Closed |
| Oct 19, 2017 | Back Water Valve (Sewer only) | Proposed Back Water Valve (Sewer only) | — | Closed |
| Aug 31, 2016 | Back Water Valve (Sewer only) | Proposal to install a back water valve in main line. | — | Closed |
| Jun 30, 2015 | Building Permit Related(PS) | Plumbing - Construct a one storey rear addition (6.7m2) and a covered deck at rear of dwelling | — | Closed |
| Jun 26, 2015 | Multiple Projects | Construct a one storey rear addition (6.7m2) and a covered deck at rear of dwelling | $10K | Closed |
| Jun 2, 2015 | Back Water Valve (Sewer only) | to install a 4 inch mainline backwater valve | — | Closed |
| Aug 18, 2014 | Addition(s) | Proposal for a 2nd floor front dormer addition in existing semi-detached single family dwelling. | $25K | Closed |
| Jan 14, 2013 | Backflow Prevention Devices (Water only) | Proposal to install 1 backwater valve on the sanitary line of existing SFD-semi dwelling. | $2K | Closed |
| Mar 20, 2012 | Multiple Projects | Proposed rear addition and new rear deck located on the second storey. | $40K | Closed |
| Jul 20, 2004 | Garage | Build replacement garage at rear. | $7K | Open |
| Apr 27, 2004 | Garage | To demolish detahced garage in rear yard | $1K | Closed |
| Jun 27, 2001 | Fixtures/Roof Drains: SFD | full drain replacement form house (outside) to property line. | $2K | Closed |
| Jun 27, 2001 | Fixtures/Roof Drains: SFD | full drain replacement form house (outside) to property line. | $2K | Closed |
The 23 most recent of 23 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 Costain Ave with a permit on record · 8
- 6 Costain Ave9 permits · to 2026
- 7 Costain Ave1 permit · to 2016
- 8 Costain Ave1 permit · to 2021
- 11 Costain Ave3 permits · to 2015
- 20 Costain Ave3 permits · to 2015
- 26 Costain Ave1 permit · to 2017
- 30 Costain Ave3 permits · to 2014
- 32 Costain Ave2 permits · to 2019