Toronto address · Ward 16, Don Valley East

255 Duncan Mill Rd

The City of Toronto has 29 building permits since 2017 (19 still open) 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.

Addition or alteration · Interior alterations
Interior alterations to existing group d - expansion of suite 803
Applied May 27, 2025 · issued Jun 20, 2025 · Permit 25 166314 BLD
Inspections under way
Heating and ventilation
HVAC - Interior alterations to existing group d - expansion of suite 803
Applied May 27, 2025 · issued Jun 20, 2025 · Permit 25 166314 HVA
Inspections under way
Plumbing
Plumbing - Interior alterations to existing group d - expansion of suite 803
Applied May 27, 2025 · issued Jun 20, 2025 · Permit 25 166314 PLB
Inspections under way
Fire and security upgrade · Fire alarm
proposing to replace fire alams panel
Applied Jan 30, 2023 · issued Feb 1, 2023 · Permit 23 108378 FSU
Permit issued
Plumbing
Plumbing - Interior alterations to offices in suite 705
Applied Dec 22, 2022 · issued Jan 17, 2023 · completed Aug 1, 2023 · Permit 22 241779 PLB
Closed
Addition or alteration · Interior alterations
Interior alterations to offices in suite 705
Applied Dec 22, 2022 · issued Jan 17, 2023 · completed Sep 21, 2023 · Permit 22 241779 BLD
Closed
Heating and ventilation
HVAC - Interior alterations to offices in suite 705
Applied Dec 22, 2022 · issued Jan 17, 2023 · completed Aug 1, 2023 · Permit 22 241779 HVA
Closed
Addition or alteration · Garage Repair/Reconstruction
Garage roof slab repairs around two colums. Includes area of slab reconstruction
Applied Jul 6, 2022 · issued Aug 5, 2022 · Permit 22 172933 BLD
Permit issued
Heating and ventilation
HVAC - SCOPE OF WORK ENTAILS DEMOLITION OF INTERIOR PARTITIONS, DOORS, CEILING C/W LIGHTING, MILLWORK MINOR PLUMBING (FOR RE&RE) AND FINISHES. NEW WORK ENTAILS MINOR BUILD OUT OF INTERIOR PARTITIONS, NEW INTERIOR OFFICE DOOR, GLAZING, MILLWORK, LIGHTING, NEW SERVERY PLUMBING FIXTURES, FLOOR AND WALL FINSIHES. SCOPE OF WORK IS INCLUSIVE OF MECHANICAL AND ELECTRICAL DRAWINGSRev. 01: HVAC layout due to site condition
Applied May 4, 2022 · issued May 16, 2022 · completed Jan 4, 2023 · Permit 21 205729 HVA (revision 01)
Closed
Addition or alteration · Interior alterations
Proposal for interior alterations with new partitions for an office.
Applied Feb 17, 2022 · Permit 22 115113 BLD
Under review
Heating and ventilation
HVAC - Proposal for interior alterations with new partitions for an office.
Applied Feb 17, 2022 · Permit 22 115113 HVA
Issuance pending
Heating and ventilation
Hvac - scope of work entails demolition of interior partitions, doors, ceiling c/w lighting, millwork minor plumbing (for re&re) and finishes. New work entails minor build out of interior partitions, new interior office door, glazing, millwork, lighting, new servery plumbing fixtures, floor and wall finsihes. Scope of work is inclusive of mechanical and electrical drawings
Applied Aug 29, 2021 · issued Sep 20, 2021 · completed Jan 4, 2023 · Permit 21 205729 HVA
Closed

Show 17 more permits

Plumbing
Plumbing - SCOPE OF WORK ENTAILS DEMOLITION OF INTERIOR PARTITIONS, DOORS, CEILING C/W LIGHTING, MILLWORK MINOR PLUMBING (FOR RE&RE) AND FINISHES. NEW WORK ENTAILS MINOR BUILD OUT OF INTERIOR PARTITIONS, NEW INTERIOR OFFICE DOOR, GLAZING, MILLWORK, LIGHTING, NEW SERVERY PLUMBING FIXTURES, FLOOR AND WALL FINSIHES. SCOPE OF WORK IS INCLUSIVE OF MECHANICAL AND ELECTRICAL DRAWINGS
Applied Aug 29, 2021 · issued Sep 20, 2021 · completed Jan 4, 2023 · Permit 21 205729 PLB
Closed
Addition or alteration · Interior alterations
Scope of work entails demolition of interior partitions, doors, ceiling c/w lighting, millwork minor plumbing (for re&re) and finishes. New work entails minor build out of interior partitions, new interior office door, glazing, millwork, lighting, new servery plumbing fixtures, floor and wall finsihes. Scope of work is inclusive of mechanical and electrical drawings
Applied Aug 29, 2021 · issued Sep 17, 2021 · completed Jan 5, 2023 · Permit 21 205729 BLD
Closed
Plumbing
Plumbing - Interior alterations to an exsiting office - unit 610
Applied Aug 21, 2021 · issued Sep 7, 2021 · Permit 21 202316 PLB
Inspections under way
Addition or alteration · Interior alterations
Interior alterations to an exsiting office - unit 610
Applied Aug 21, 2021 · issued Aug 30, 2021 · Permit 21 202316 BLD
Inspections under way
Addition or alteration · Interior alterations
Proposal for interior alterations for existing office building 710,711,712
Applied May 6, 2021 · issued May 20, 2021 · Permit 21 151112 BLD
Inspections under way
Heating and ventilation
HVAC - Proposal for interior alterations for existing office building 710,711,712
Applied May 6, 2021 · issued May 20, 2021 · completed Aug 25, 2025 · Permit 21 151112 HVA
Closed
Addition or alteration · Interior alterations
Interior renovations to existing office
Applied Nov 16, 2016 · issued Dec 13, 2016 · completed May 19, 2017 · Permit 16 252174 BLD
Closed
Plumbing · Other
Instal a small sink and faucet in an office - Unit 404 - Union Office
Applied Nov 16, 2015 · issued Nov 19, 2015 · Permit 15 251994 PSA
Permit issued
Plumbing
REV #1 A Lift Station is proposed to pump the sewer line to the overhead base building Sewer linePlumbing - Proposal for interior alterations on the suite 204 on the second floor, "Midas"
Applied Jan 15, 2015 · completed Sep 24, 2020 · Permit 14 247572 PLB (revision 01)
Cancelled
Addition or alteration · Interior alterations
Proposal for interior alterations on the suite 204 on the second floor, "Midas"
Applied Nov 4, 2014 · issued Nov 10, 2014 · Permit 14 247572 BLD
Inspections under way
Plumbing
Plumbing - Proposal for interior alterations on the suite 204 on the second floor, "Midas"
Applied Nov 4, 2014 · issued Dec 1, 2014 · Permit 14 247572 PLB
Inspections under way
Heating and ventilation
HVAC - Interior alteration to existing office space
Applied Dec 30, 2013 · issued Feb 5, 2014 · Permit 13 281827 HVA
Permit issued
Addition or alteration · Interior alterations
Interior alteration to existing office space
Applied Dec 30, 2013 · issued Jan 8, 2014 · Permit 13 281827 BLD
Permit issued
Plumbing
Plumbing - Huntech Consultants - Suite 402 - Int. Alt.
Applied Apr 26, 2012 · issued May 7, 2012 · Permit 12 151365 PLB
Inspections under way
Plumbing
Plumbing - Gamaley and associates Engineening ltd on 6th floor unit 603
Applied Dec 3, 2010 · issued Feb 7, 2011 · Permit 10 308239 PLB
Permit issued
Addition or alteration · Interior alterations
Interior alterations to offices in unit 805 in existing office building.
Applied Dec 19, 2006 · issued Jan 4, 2007 · Permit 06 198766 BLD
Inspections under way
Addition or alteration · Garage Repair/Reconstruction
Parking garage repairs to level 1 and 2
Applied Jun 22, 2006 · issued Jul 5, 2006 · Permit 06 150000 BLD
Inspections under way

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

225 Duncan Mill Rd · Minor variance
To permit surplus parking spaces to be used for the property municipally known as 95-105 Moatfield Dr.
70 m away · filed Mar 19, 2019 · Approved

Everything planned in Don Valley East

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.