Ontario Building Code Changes 2024

Ontario is progressing towards harmonizing with the National Building Code. Changes that came into effect January 1, 2025 has a 3 month transition period. If you are looking for training on these changes contact PKHBA.

The Ontario Building Code Changes came into effect January 1, 2025 with a phase in until March 31, 2025

Code New update: Ontario Regulation 163/24 adopted a new Building Code for Ontario, which came into effect on January 1, 2025 and was made under the Building Code Act, 1992 by the Ontario Minister of Municipal Affairs and Housing on April 9, 2024.

According to Ontario Regulation 163/24, the new Building Code for Ontario consists of TWO documents:

  1. CCBFC NRCC-CONST-56435E, “National Building Code of Canada 2020”
  2. “Ontario Amendments to the National Building Code of Canada 2020”, dated April 5, 2024 and issued by the Ministry of Municipal Affairs and Housing

The new Building Code for Ontario established by Ontario Regulation 163/24 has been further amended by the following TWO regulations:

  1. Ontario Regulation 203/24, made by the Ontario Minister of Municipal Affairs and Housing on May 29, 2024

Ontario Regulation 203/24 amended Ontario Regulation 163/24 to adopt the new Building Code for Ontario, consists of the following TWO documents:

CCBFC NRCC-CONST-56435E, “National Building Code of Canada 2020”

“Ontario Amendments to the National Building Code of Canada 2020”, dated May 15, 2024 and issued by the Ministry of Municipal Affairs and Housing

  1. Ontario Regulation 447/24, made by the Ontario Minister of Municipal Affairs and Housing on November 4, 2024

Ontario Regulation 447/24 amended Ontario Regulation 203/24 to adopt the the new Building Code for Ontario, consists of the following TWO documents:

CCBFC NRCC-CONST-56435E, “National Building Code of Canada 2020”

“Ontario Amendments to the National Building Code of Canada 2020”, dated October 8, 2024 and issued by the Ministry of Municipal Affairs and Housing