Regulation - Minister

Proposed Building Code Changes to Support More Homes Built Faster: Ontario's Housing Supply Action Plan: 2022-2023 (Phase 3 - Fall 2022 Consultation for the Next Edition of Ontario's Building Code)

Regulation Number(s):
O. Reg. 332/12
Instrument Type:
Regulation - Minister
Bill or Act:
Building Code Act, 1992
Summary of Proposal:
Ontario's Building Code is a regulation under the Building Code Act, 1992 which sets out minimum administrative and technical requirements for new construction, renovation, and change of use of buildings.

The Ministry of Municipal Affairs and Housing has been actively working on the development of the next edition of the Building Code since 2021, and is launching the third and final phase of consultation to inform this next edition, which is anticipated for filing in Spring 2023 and coming into effect in Spring 2024.

The Phase 3 consultation consists of engagement and discussion in November/December 2022, and three simultaneous online postings. In addition to this current posting on proposed Building Code changes to support the housing supply, the other two postings are on:
-the Regulatory Registry of Ontario on General Proposed Changes for the Next Edition of Ontario's Building Code (including information on the Consultation on the 2025 National Construction Codes) []
-the Environmental Registry of Ontario on Proposed Changes to Sewage Systems and Energy Efficiency []

Proposed Building Code Changes to Support Housing Supply
The government is developing potential legislative changes, regulatory changes, policy and other matters to help the government achieve its goal of building 1.5 million homes over the next ten years as part of More Homes Built Faster: Ontario's Housing Supply Action Plan: 2022-2023. One key element of More Homes Built Faster: Ontario's Housing Supply Action Plan: 2022-2023 is increasing the supply and mix of houses and other residential buildings.

This posting includes two groups of proposed Building Code changes (see "List of Proposed Housing Supply Building Code Changes" and the detailed Code Change Proposal forms embedded within this list for more details).
-The first group of changes would amend the requirements in Ontario's Building Code for mid-rise wood buildings between four and six storeys to harmonize with current requirements in the National Building Code.
-The second group of changes would remove the current requirement for a standpipe system in a four-storey stacked townhouse.

Please submit comments on any of the proposed changes for the next edition of Ontario's Building Code by:
1. using the link provided within the attached list of proposals, or
2. submitting an email directly to with the Sentence(s) or Article number(s) as the subject line.

This posting is open for 45 days for feedback. A bulk comment form is also available and is attached below.
Analysis of Regulatory Impact:
Costs: There are no new administrative costs anticipated for regulated entities.

Benefits: The proposed changes would support increased housing mix and supply and further align harmonization between Ontario's Building Code and National Construction Codes.
Further Information:
Proposal Number:
Posting Date:
October 25, 2022
Comments Due Date:
December 9, 2022
Contact Address:
Building and Development Branch
Ministry of Municipal Affairs and Housing
College Park 12th Floor, 777 Bay St, Toronto, ON M7A 2J3