Request for an amendment to Minister’s Zoning Order, Ontario Regulation 10/24, City of Toronto

A Minister’s Zoning Order (MZO), made pursuant to clause 47(1)(a) of the Planning Act, regulates the use of land and the erection, location and use of any building or structure on the land, and prevails over the existing municipal zoning by-law to the extent there is any conflict.

Ontario Regulation (O. Reg. 10/24) protects public health and safety by regulating building heights to ensure the safe operation of air ambulance services provided in relation to St. Michael's Hospital and The Hospital for Sick Children. The zoning order prohibits any building, structure or naturally growing object from penetrating into the obstacle limitation surfaces for the St. Michael's Hospital Heliport and The Hospital for Sick Children Heliport, subject to the exceptions listed in the order.

O. Reg. 10/24 applies to those lands subject to the obstacle limitation surfaces for the St. Michael's Hospital Heliport and those lands subject to the obstacle limitation surfaces for The Hospital for Sick Children Heliport, as shown on the existing maps referenced in the regulation, identified below.

The Minister is considering requests from the following landowners to make site-specific amendments to Map No. 345 that forms part of O. Reg. 10/24:

• 295 Jarvis Street
• 610 Bay Street and 130 Elizabeth Street

The Minister’s recent decision to amend O. Reg. 10/24 to extend the expiry clause through the filing of O. Reg. 80/25 on May 29, 2025, does not propose any alterations to the mapping at this time and does not constitute a decision on the site-specific requests to amend the regulation in respect of the lands at 15-17 Elm St., and 595 Bay St., 304-316 Yonge St., 14-80 Dundas St. W. as part of posting #025-0348. 

To help ensure decisions are made in a transparent manner and support government priorities, the Ministry is seeking feedback on whether this request should be considered and any additional information that may help inform a decision. In particular, any potential environmental risks, financial impacts on the municipality or implications for other approved developments and how these can be mitigated.