DIVISION A · PART 1 — COMPLIANCE AND GENERALUpdated for the 2024 Ontario Building Code
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1.3.3.5.Designated Structures
(1) The following structures are designated for the purposes of clause (d) of the definition of building in subsection 1 (1)
of the Act:
(a) a retaining wall exceeding 1 000 mm in exposed height adjacent to
(i) public property,
(ii) access to a building, or
(iii) private property to which the public is admitted,
(b) a pedestrian bridge appurtenant to a building,
(c) a crane runway,
(d) an exterior storage tank and its supporting structure that is not regulated by the Technical Standards and Safety Act,
2000,
(e) signs regulated by Section 3.15. of Division B that are not structurally supported by a building,
(f) a solar collector that is mounted on a building and has a face area equal to or greater than 5 m 2,
(g) a structure that supports a wind turbine generator having a rated output of more than 3 kW,
(h) a dish antenna that is mounted on a building and has a face area equal to or greater than 5 m2,
(i) an outdoor pool,
(j) an outdoor public spa,
(k) a permanent solid nutrient storage facility with supporting walls exceeding 1 000 mm in exposed height,
(l) a demountable stage, and
(m) a demountable support structure.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.