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Case information

Conduct a refined search of the Supreme Court of Canada database to obtain details on the status of a matter before the Court.


41662

Gabriella Lengyel v. Ontario Assessment Review Board, et al.

(Ontario) (Civil) (By Leave)

Docket

Judgments on applications for leave to appeal are rendered by the Court, but are not necessarily unanimous.

List of proceedings
Date Proceeding Filed By
(if applicable)
2026-01-08 Copy of formal judgment sent to Registrar of the Court of Appeal and all parties
2026-01-08 Judgment on leave sent to the parties
2026-01-08 Judgment of the Court on the application for leave to appeal, The motion to file a lengthy memorandum of argument is granted. The motion to file a lengthy reply is granted. The application for leave to appeal from the judgment of the Court of Appeal for Ontario, Number M55282, 2025 ONCA 23, dated January 17, 2025, is dismissed.
Dismissed
2026-01-08 Decision on motion to file a lengthy memorandum of argument, See decision on application
2025-11-24 All materials on application for leave submitted to the Judges, for consideration by the Court
2025-11-24 Submission of motion to file a lengthy memorandum of argument, for consideration by the Court
2025-03-24 Supplemental document, (Book Form), Factum Gabriella Lengyel
2025-03-24 Motion to file a lengthy memorandum of argument, (Book Form), Completed on: 2025-03-26 Gabriella Lengyel
2025-03-07 Applicant's reply to respondent's argument, (Book Form), Missing:
- Motion for lengthy memorandum (Rec'd 2025-03-24), Completed on: 2025-03-25
Gabriella Lengyel
2025-03-07 Certificate (on limitations to public access), (Letter Form), Form 23A, (Printed version due on 2025-03-14) City of Toronto
2025-03-03 Respondent's response on the application for leave to appeal, (Letter Form), Missing:
- 23A (Rec'd 2025-03-07)
- Notice of name, Completed on: 2025-03-10, (Printed version due on 2025-03-10)
City of Toronto
2025-02-21 Respondent's response on the application for leave to appeal, (Letter Form), Missing:
- 23A
- Notice of name, Incomplete, (Printed version due on 2025-02-28)
Ontario Assessment Review Board
2025-02-06 Supplemental document, (Book Form), Applicant factum
Gabriella Lengyel
2025-02-06 Motion to file a lengthy memorandum of argument, (Book Form), Completed on: 2025-02-10 Gabriella Lengyel
2025-02-04 Letter advising parties of an incomplete application for leave to appeal, FILE OPENED
2025-01-30 Supplemental document, (Book Form), Lower courts documents Gabriella Lengyel
2025-01-30 Certificate (on limitations to public access), (Letter Form), Certificate 23A
Amended certificate with correct style of cause is required (Rec'd 2025-03-28)
Gabriella Lengyel
2025-01-30 Application for leave to appeal, (Book Form), Missing:
- Motion to file a lengthy memorandum of argument (Rec'd 2025-02-06)
- Proof of service, Completed on: 2025-02-24
Gabriella Lengyel

Parties

Please note that in the case of closed files, the “Status” column reflects the status of the parties at the time of the proceedings. For more information about the proceedings and about the dates when the file was open, please consult the docket of the case in question.

Main parties

Main parties - Appellants
Name Role Status
Lengyel, Gabriella Applicant Active

v.

Main parties - Respondents
Name Role Status
Ontario Assessment Review Board Respondent Active
City of Toronto Respondent Active

Counsel

Party: Lengyel, Gabriella

This party is not represented by counsel.

Party: Ontario Assessment Review Board

Counsel
Name
Morgana Kellythorne
Contact information
Tribunals Ontario, Legal Services Unit
Automobile Accident Benefits Service
15 Grosvenor Street, Ground Floor
Toronto, Ontario
M7A 2G8
Telephone: (416) 509-4767 Ext: //
FAX: (416) 314-4270
Email: Morgana.Kellythorne@ontario.ca

Party: City of Toronto

Counsel
Name
Graham Thomson
Contact information
City Solicitor's Office
City of Toronto, Legal Services, Station 1260, Metro Hall
55 John Street, 26th Floor, LSO No. 73363 E
Toronto, Ontario
M5V 3C6
Telephone: (416) 397-5303
FAX: (416) 397-5624
Email: graham.thomson@toronto.ca

Summary

Keywords

Charter of Rights — Right to equality — Discrimination based on mental or physical disability — Administrative law — Judicial review — Natural justice — Procedure — Applicant attempting to seek relief from payment of municipal property taxes — Assessment review board denying claim for relief — Courts below dismissing application for judicial review — Dismissal of requests for extensions of time to appeal or review decision — Whether s. 15(1) of the Charter encompasses a right for every individual litigant to an impartial process, both real and apparent — Whether the common law principle of “automatic disqualification” applies in Canada, and, if so, in what form — Whether Rule 62.02 of the Ontario Rules of Civil Procedure is unconstitutional, in that it permits a complaint of bias to be finally barred at the court of first instance without a hearing on merits — Whether a court of first instance has an obligation to hear a complaint of bias on merits — What test should apply for granting leave to appeal at first instance in exceptional circumstances involving a reasonable apprehension of bias? — Rules of Civil Procedure, R.R.O. 1990, Reg. 194, r. 62.02.

Summary

Case summaries are prepared by the Office of the Registrar of the Supreme Court of Canada (Law Branch). Please note that summaries are not provided to the Judges of the Court. They are placed on the Court file and website for information purposes only.

The applicant, Gabriella Lengyel, is the owner of a property located in the City of Toronto (the respondent “City”). In 2022, Ms. Lengyel submitted applications to the Ontario Assessment Review Board (the respondent “Board”), to cancel, reduce, or refund certain municipal property taxes amounts, for the 2015 and 2017 taxation years. Both applications were dismissed by the Board. Ms. Lengyel then brought an application for judicial review of the decision.

The Divisional Court dismissed Ms. Lengyel’s application for judicial review of the Board’s decision. Ms. Lengyel attempted to seek leave to appeal the Divisional Court judgment before the Court of Appeal, but required an extension of time to do so. A single judge of the Court of Appeal dismissed her motion for an extension of time, and her subsequent request for an extension of time to review that order was also dismissed. A different judge of the Court of Appeal then granted her request for an extension of time to review the immediately preceding order, and directed that a panel of the Court of Appeal hear her motion for leave to appeal as soon as possible. A unanimous panel of the Court of Appeal dismissed the motion for leave to appeal.

Lower court rulings

March 23, 2023
Ontario Superior Court of Justice

454/22

Ms. Lengyel’s application for judicial review of original OARB decision — dismissed

November 14, 2024
Court of Appeal for Ontario

M55515 (COA-24-OM-0108)

Ms. Lengyel’s request for extension of time to review order of Wilson J.A. — granted

January 17, 2025
Court of Appeal for Ontario

2025 ONCA 23

Ms. Lengyel’s motion for leave to appeal order of Wilson J.A. — dismissed

Filed documents

The memorandums of argument on an application for leave to appeal will be posted here 30 days after leave to appeal has been granted unless they contain personal information, information that is subject to a publication ban, or any other information that is not part of the public record. You may also obtain copies of the memorandum by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613‑996‑7933 or at 1‑888‑551‑1185.

If you have questions about a memorandum of argument or want to use a memorandum of argument, please contact the author of the memorandum of argument directly. Their name appears at the end of the memorandum of argument. The contact information for counsel is found in the “Counsel” tab of this page.

Downloadable PDFs

Not available

The factums of the appellant, the respondent and the intervener will be posted here at least 2 weeks before the hearing unless they contain personal information, information that is subject to a publication ban, or any other information that is not part of the public record. You may also obtain copies of factums by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613‑996‑7933 or at 1‑888‑551‑1185.

If you have questions about a factum or want permission to use a factum, please contact the author of the factum directly. Their contact information appears on the first page of each factum.

Downloadable PDFs

Not available

The condensed books of the appellant, the respondent and the intervener will be posted here upon receipt of the electronic version, 2 days prior to the scheduled appeal hearing. You may also obtain copies of condensed books by filling out the Request for Court records form or by contacting the Court’s Records Centre either by email at records-dossiers@scc-csc.ca or by telephone at 613‑996‑7933 or at 1‑888‑551‑1185.

If you have questions about a condensed book or want permission to use a condensed book, please contact the author of the condensed book directly. Their contact information appears on the first page of each condensed book.

Downloadable PDFs

Not available

Webcasts

Not available.

Date modified: 2026-01-09