The Ontario Building Code | Portion of Extended Buildings
11.3.2.1. Portion of Extended buildings
(1) Where an existing building is extended,
(a) this Part applies to the existing portion of the building, and
(b) the extended portion of the building shall comply with all other Parts.
(2) Revoked: O. Reg. 361/13, s. 97 (2).
11.3.3. Renovation
In Plain Language
The portion of a building being extended must meet the requirements set out in this article, addressing how compliance obligations apply specifically to the new addition.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.