About Bill 23, The More Homes Built Faster Act

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Municipalities in Ontario have been subjected to several changes as a result of the Government of Ontario's rollout of the More Homes, More Choice: Ontario’s Housing Supply Action Plan, which is a long-term strategy to increase housing supply and provide attainable housing options.

In November of 2022, the Government of Ontario (the province) passed Bill 23, More Homes Built Faster Act, which is part of Ontario’s Housing Supply Action Plan and aims to support the province’s goal to add 1.5 million new homes in Ontario by 2031. The Bill makes extensive changes to several Acts and regulations including the Development Charges Act, Planning Act, Municipal Act, and others.

Additional Dwelling Units

Bill 23, amends the Planning Act to create a new provincial threshold for what is permitted to be built by strengthening the additional residential unit framework and moving toward “as-of-right” zoning to meet planned minimum density targets. Specifically, the new amendments permit landowners to add two additional residential units “as of right” on properties containing a single detached dwelling, semi-detached dwelling or a townhouse without requiring a zoning by-law amendment. The three units can be within the existing residential structure or could take the form of a residence with an in-law, basement suite, and laneway or garden homes. The zoning by-law regulations respecting matters such as height, setback and coverage remain and continue to apply.

A building permit is required for any additional dwelling unit. Before applying, applicants must first consult with the Municipality to ensure:

  • what is being proposed is permitted;
  • that servicing is available and can be supported;
  • that supporting plans and reports are obtained by the applicant; and
  • that applicable zone provisions (setbacks, coverage, height etc.) can be satisfied and parking for each unit can be provided on-site.

Next Steps:

The Municipality is in the process of reviewing Leamington-specific impacts as a result of Bill 23. Administration will continue to review the legislation and make any changes required to programs, resources and operations, including the calculations of parkland and development charges, and future impacts on infrastructure and service delivery.

More information on Bill 23 and how it relates to Leamington will be updated as information becomes available.



Municipalities in Ontario have been subjected to several changes as a result of the Government of Ontario's rollout of the More Homes, More Choice: Ontario’s Housing Supply Action Plan, which is a long-term strategy to increase housing supply and provide attainable housing options.

In November of 2022, the Government of Ontario (the province) passed Bill 23, More Homes Built Faster Act, which is part of Ontario’s Housing Supply Action Plan and aims to support the province’s goal to add 1.5 million new homes in Ontario by 2031. The Bill makes extensive changes to several Acts and regulations including the Development Charges Act, Planning Act, Municipal Act, and others.

Additional Dwelling Units

Bill 23, amends the Planning Act to create a new provincial threshold for what is permitted to be built by strengthening the additional residential unit framework and moving toward “as-of-right” zoning to meet planned minimum density targets. Specifically, the new amendments permit landowners to add two additional residential units “as of right” on properties containing a single detached dwelling, semi-detached dwelling or a townhouse without requiring a zoning by-law amendment. The three units can be within the existing residential structure or could take the form of a residence with an in-law, basement suite, and laneway or garden homes. The zoning by-law regulations respecting matters such as height, setback and coverage remain and continue to apply.

A building permit is required for any additional dwelling unit. Before applying, applicants must first consult with the Municipality to ensure:

  • what is being proposed is permitted;
  • that servicing is available and can be supported;
  • that supporting plans and reports are obtained by the applicant; and
  • that applicable zone provisions (setbacks, coverage, height etc.) can be satisfied and parking for each unit can be provided on-site.

Next Steps:

The Municipality is in the process of reviewing Leamington-specific impacts as a result of Bill 23. Administration will continue to review the legislation and make any changes required to programs, resources and operations, including the calculations of parkland and development charges, and future impacts on infrastructure and service delivery.

More information on Bill 23 and how it relates to Leamington will be updated as information becomes available.



Page last updated: 21 Aug 2023, 11:17 AM