Toronto address · Ward 18, Willowdale
1 Diagonal Rd
The City of Toronto has 7 building permits since 2017 on record for this address.
Building permits
Every permit the City lists for this address since 2017, and any still open from before, newest first.
- Closed
Small residential project · Multiple projects
Revision #2 - distribute joists load layout to second fllorRevision - Remove habitable space above the garage, addition of window in master bedroom, bedroom layout changes, change to roof plan, beam locations and stair
Applied Apr 20, 2015 · issued Apr 24, 2015 · completed Aug 25, 2020 · Permit 14 151022 BLD (revision 02)
- Closed
Heating and ventilation
Revision - Remove habitable space above the garage, addition of window in master bedroom, bedroom layout changes, change to roof plan, beam locations and stair - Second storey addition, two storey front addition, interior alterations, rear deck
Applied Feb 5, 2015 · issued Mar 5, 2015 · completed Dec 3, 2019 · Permit 14 151022 HVA (revision 01)
- Closed
Small residential project · Multiple projects
Revision - Remove habitable space above the garage, addition of window in master bedroom, bedroom layout changes, change to roof plan, beam locations and stair
Applied Feb 5, 2015 · issued Feb 24, 2015 · completed Aug 25, 2020 · Permit 14 151022 BLD (revision 01)
- Closed
Heating and ventilation
HVAC - Second storey addition, two storey front addition, interior alterations, rear deck
Applied Oct 22, 2014 · issued Dec 11, 2014 · completed Dec 3, 2019 · Permit 14 151022 HVA
- Closed
Plumbing
Plumbing - Second storey addition, two storey front addition, interior alterations, rear deck
Applied May 2, 2014 · issued Aug 15, 2014 · completed Aug 25, 2020 · Permit 14 151022 PLB
- Closed
Small residential project · Multiple projects
Second storey addition, two storey front addition, interior alterations, rear deck
Applied May 2, 2014 · issued Aug 15, 2014 · completed Aug 25, 2020 · Permit 14 151022 BLD
- Closed
Drains and site services · Back water valve (Sewer only)
Install one new mein line full port Back Water Valve (Sewer only)
Applied Jul 29, 2013 · issued Jul 29, 2013 · completed May 24, 2017 · Permit 13 212218 000
Committee of Adjustment
No applications to the City's Committee of Adjustment for this address since 2017. That's where an owner asks for a minor variance (a small exception to the zoning by-law) or a consent to divide a lot.
What’s planned nearby
Development sites within 500 m
No rezoning, site plan, subdivision or condominium file open within 500 m, and no pre-construction project on the site.
Neighbours’ Committee of Adjustment files within 250 m
142 Betty Ann Dr · Minor variance
To construct a three-storey fourplex with front yard parking and a garden suite.
80 m away · filed Mar 19, 2026 · Approved
8 Abbotsford Rd · Minor variance
To construct a new dwelling.
250 m away · filed Feb 12, 2026 · Approved
142 Park Home Ave · Minor variance
To construct a new dwelling.
160 m away · filed Dec 5, 2024 · Approved
238 Ellerslie Ave · Minor variance
To construct a new detached dwelling
160 m away · filed Aug 1, 2024 · Approved
147 Park Home Ave · Minor variance
To construct a new dwelling.
210 m away · filed May 3, 2024 · Approved
186 Ellerslie Ave · Consent
To obtain consent to sever the existing property into 2 residential lots and construct two new dwellings. File numbers B0022/24NY, A0224/24NY, A0225/24NY will be jointly considered. Please note, the file was deferred on April 3, 2025, to allow the applicant to obtain a revised zoning notice.
170 m away · filed Apr 30, 2024 · Approved
186 Ellerslie Ave · Minor variance
To obtain consent to sever the existing property into 2 residential lots and construct two new detached dwellings. Please note, the file was deferred on April 3, 2025, to allow the applicant to obtain aa revizsed zoning notice. File numbers B0022/24NY, A0224/24NY, A0225/24NY will be jointly considered.
170 m away · filed Apr 25, 2024 · Approved
186 Ellerslie Ave · Minor variance
To construct a new detached dwelling. Please note, the file was deferred on April 3, 2025, to allow the applicant to obtain a revised zoning notice. File number B0022/24NY, 0224/24NY, A0225/24NY will be jointly considered.
170 m away · filed Apr 25, 2024 · Approved
From the City of Toronto’s open data: building permits (active, and cleared since 2017), Committee of Adjustment applications and address points, this record updated Sep 29, 2026, and the development sites from its Development Applications data. Contains information licensed under the Open Government Licence – Toronto. Construction cost estimates and contractors’ names are left out on purpose, and nothing here names an owner.