Current status

On June 4, 2026, the Minister of the Environment, Conservation and Parks, with Cabinet approval, gave the City of Mississauga approval to proceed with the 1 Port Street East proposed marina project.

Learn more about the notice of approval.

Project summary

The project includes relocating and replacing an existing private marina with a new public marina. The city is expanding the land base around the eastern breakwater to create additional marina infrastructure and waterfront parkland for public access to Lake Ontario. The project will also enhance the site’s aquatic and terrestrial habitats.

Learn more on the City of Mississauga's website.

Proponent

City of Mississauga

Location

Mississauga

Type

Other

Reference number

19071

Contact

Project history

Environmental assessment: approved
Date of decision: June 4, 2026

Terms of reference: approved
Date submitted: July 10, 2020
Expiry of public comment period: August 10, 2020
Decision date: September 16, 2021

Environmental assessment

The City of Mississauga submitted its final environmental assessment for the 1 Port Street East proposed marina project to the Ministry of the Environment, Conservation and Parks for review in October 2024. The assessment examined the proposed lakefill alternatives for additional waterfront parkland and marina services for the site.

An invitation to comment on the environmental assessment was posted on this webpage on October 18, 2024. Comments were accepted until December 6, 2024.

Based on the comments received during the environmental assessment review period from Indigenous communities, agencies and members of the public, the City of Mississauga revised its environmental assessment and submitted an amended version to the ministry in June 2025.

On November 14, 2025, we published the ministry review of the amended environmental assessment for Indigenous community, public and agency comment. A 5-week comment period for the review concluded on December 19, 2025.

On June 4, 2026, the minister, with Cabinet approval, gave approval to the City to proceed with the project as described in the environmental assessment.

The City may now proceed with implementing the project, subject to the conditions in the notice of approval and any other permits and approvals that may be required.

Read the Order in Council and notice of approval.

Terms of reference

On September 16, 2021, the Minister of the Environment, Conservation and Parks approved the terms of reference (ToR) for the 1 Port Street East proposed marina project environmental assessment (EA). The ToR sets out the City of Mississauga’s work plan for addressing the Environmental Assessment Act requirements for the EA. It builds upon the background work completed to date and includes:

  • alternatives and criteria to evaluate impacts that will be considered in the EA
  • a description of public consultation activities and the consultation plan to be completed for the EA
  • responses to comments raised during the review of the draft ToR

The ToR provides the framework for the preparation of the individual EA.

Notice of approval

Environmental Assessment Act subsection 6(4) approval of Terms of Reference for the preparation of an environmental assessment.

Proponent: City of Mississauga

Terms of reference: 1 Port Street East Proposed Marina Environmental Assessment

Undertaking: Proposed marina, public access to waterfront and parkland

EA file number: 19071

As provided for by subsection 6(4) of the Environmental Assessment Act, Terms of Reference, as submitted for approval to the Ministry of the Environment, Conservation and Parks on July 9, 2020 and revised through the submission of an amended Terms of Reference by the City of Mississauga dated September 11, 2020 is hereby approved.

Pursuant to subsection 6.1(1) of the Environmental Assessment Act, any environmental assessment for the above-noted undertaking, submitted to the Ministry of the Environment, Conservation and Parks pursuant to subsection 6.2(1) of the Environmental Assessment Act, must be prepared in accordance with the Terms of Reference as hereby approved.

Reasons

I am satisfied that an environmental assessment prepared in accordance with the Terms of Reference will be consistent with the purpose of the Environmental Assessment Act and the public interest for the following reasons:

  • The Terms of Reference ensures that the environmental assessment will be completed using a comprehensive public, Indigenous community and government agency consultation process that is open and transparent.
  • The Terms of Reference provides a sufficient level of detail to confirm that the completed environmental assessment should contain a sufficient level of detail to accurately assess the environmental effects of all alternatives and the proposed undertaking.
  • The Terms of Reference sets out a planning process that will ensure the completed environmental assessment will be consistent with the purpose of the Act and the public interest.
  • There are no outstanding issues that have not been incorporated into the Terms of Reference or that cannot be addressed during the preparation of the environmental assessment.

Dated the 16th day of September, 2021 at Toronto.

Original signed by:

David Piccini
Minister of the Environment, Conservation and Parks
777 Bay Street, 5th Floor  
Toronto, Ontario
M7A 2J3