New Proposed Provincial Regulation Changes regarding Gentle Density

Recently, the Province announced potential changes to land use regulations that guide how municipalities can implement "gentle density.”

Most of the potential changes align with the IHCN study objectives (i.e. permitting a wider range of ground-related dwelling options). However, if the proposed changes come into effect, any recommendations from the IHCN study will need to be examined closely and potentially be revised to ensure they conform to the new Provincial legislation.

A list of the proposed provincial regulatory changes is provided in the table below.

The Province is accepting comments from members of the public on the proposed changes until December 9, 2022. To read more about these changes and share your feedback with the Province, see the link on the Environmental Registry of Ontario webpage:

City staff have prepared a corporate report in response to the proposed legislation titled Bill 23 "More Homes Built Faster Act" and Implications for the City of Mississauga. It will be reviewed at a Special Council meeting on November 23 at 9:30 a.m. You can read a copy of the report here.

For more information from City Staff, please contact:

Brandon Williams, MCIP, RPP

Planner, Planning Innovation, Planning and Building Department

T 905-615-3200 ext. 8753

Table 1: List of Proposed Provincial Regulation Changes regarding Gentle Density

Policy Area

Proposed Changes to Planning Act and Development Charges Act

Additional Residential Units (ARUs)

Three (3) residential units will be permitted per residential lot as-of-right (as long as the lot is served by City services), with no rezoning required. This newly includes up to all 3 units being in the same building (i.e. triplex), or 2 units in the principal dwelling plus an ARU (i.e. duplex and a garden suite).

Fees & Process

Exemption of the second and third residential units on the residential lot from Development Charges, Parkland contribution or Cash-In-lieu, and the Site Plan Control process. The principal dwelling will also be exempt from Site Plan Control.

Minimum Unit Sizes

The City cannot establish minimum unit sizes for ARUs. However, it should be noted that the Ontario Building Code provides for minimum habitable space regulations.

Parking Requirements

The City cannot require more than 1.0 parking space/unit for the three residential units permitted per lot.


The Increasing Housing Choices in Neighbourhoods project team.

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