
GUIDING YOU TO CODE COMPLIANT DESIGN AND CONSTRUCTION
Design and Construction Guide for Secondary Suites in Houses
This version published March 2026. Original work published March 2025.
GUIDING YOU TO CODE COMPLIANT DESIGN AND CONSTRUCTION
Design and Construction Guide for Secondary Suites in Houses
This Design and Construction Guide is intended to assist the designer and contractor in understanding the requirements of the Ontario Building Code 2024 for the installation of a secondary suite in a house. It is also intended to benefit homeowners, building officials, builders and industry stakeholders. Over 40 diagrams are included.
This version published March 2026. Original work published March 2025.
GUIDING YOU TO CODE COMPLIANT DESIGN AND CONSTRUCTION
Design and Construction Guide for Secondary Suites in Houses
This Design and Construction Guide is intended to assist the designer and contractor in understanding the requirements of the Ontario Building Code 2024 for the installation of a secondary suite in a house. It is also intended to benefit homeowners, building officials, builders and industry stakeholders. Over 40 diagrams are included.