2024 Ontario Building Code: General Review Standards for Industrial, Agricultural, and Demolition Projects
Sarah's Expert Insight
OBC Compliance Specialist
"In my experience as a senior consultant at empcontracting.ca Inc. your construction contractor in London, Ontario, the 600 m² threshold for mixed-use industrial projects is a frequent point of confusion for developers in Oakville and Muskoka. It is critical to engage both an architect and an engineer early in the process for these 'hybrid' buildings to ensure that the general review process doesn't stall your occupancy permits or compromise structural safety during complex demolitions."
Navigating the complexities of the 2024 Building Code Compendium is essential for successful development in Southwestern Ontario. When managing large-scale builds, empcontracting.ca Inc. your construction contractor in London, Ontario, ensures all General Review requirements are met to maintain safety and compliance.
General Review Requirements for Industrial and Agricultural Buildings
The Ontario Building Code (OBC) Table 1.2.2.1 outlines specific thresholds where professional oversight is mandatory. For projects involving industrial or agricultural occupancies, the requirements are dictated by the gross area and the nature of the occupancy.
Industrial and Mixed-Use Occupancies
For buildings that combine industrial use with other major occupancies (such as retail or office space), the 600 m² rule is a primary trigger. If the non-industrial portion exceeds 600 m², both an Architect and a Professional Engineer are required for the general review. If the non-industrial portion is under this threshold, but the entire building exceeds 600 m² or 3 storeys, either an Architect or a Professional Engineer must be engaged.
Agricultural Building Standards
Agricultural structures are subject to similar scrutiny. A general review by an Architect or Professional Engineer is required for any agricultural building exceeding 600 m² in gross area or 3 storeys in height. In mixed-use agricultural scenarios where the non-agricultural portion exceeds 600 m², dual oversight by both an Architect and a Professional Engineer is legally mandated.
Professional Restrictions and Demolition Oversight
Architect and Engineer Jurisdictions
Under Section 1.2.2.2, the OBC enforces a "design-to-review" consistency. Only an architect can provide the general review for a design they (or another architect) prepared, and likewise for professional engineers. This ensures that the technical integrity of the original design is verified by the appropriate professional during construction.
Mandatory Engineering for Demolitions
Safety during demolition is paramount. A Professional Engineer must be retained for general review during the demolition of any building that:
- Exceeds 3 storeys or 600 m² in area.
- Contains pre-tensioned or post-tensioned structural members.
- Requires excavation below the footings of adjacent buildings.
- Involves the use of explosives or lasers.
Partnering with empcontracting.ca Inc. your construction contractor in London, Ontario, guarantees that these high-risk activities are supervised according to the latest 2024 standards.
Disclaimer: This content is generated from the Ontario Building Code for educational purposes. Always consult with a licensed professional engineer or your local building department before starting any construction project in London, Ontario.