How is a 'building' defined in the Building Code Act?

In the context of the Building Code Act, a 'building' is defined as a structure that occupies an area greater than ten square metres. This definition is significant because it helps determine which structures are subject to the various regulations and standards outlined in the Ontario Building Code. By setting a minimum area requirement, it distinguishes larger constructions that may be complex and require adherence to specific safety, structural, and health regulations from smaller outbuildings or temporary structures that do not meet this threshold.

The choice regarding having four walls and a roof may describe a general characteristic of many buildings, but it does not encompass all structures that are classified as buildings under the code. Similarly, a definition that includes height limitations does not accurately capture the essential criterion for classification as a 'building'. Lastly, while structures intended for human habitation are certainly included within the larger category of buildings, this definition is not comprehensive enough to include all applicable structures within the Building Code’s scope. Therefore, the first option accurately represents the formal definition as established by the Building Code Act.