Canadian building code question

What are the building code requirements for food service and restaurant occupancies in Canada?

Restaurant and food service spaces are typically classified as assembly occupancies, which triggers specific requirements for occupant load calculation, exit capacity, fire separation, commercial kitchen ventilation, plumbing fixtures, and accessibility. The exact requirements depend on the seating capacity, kitchen type, floor level, building construction, and provincial adoption.

Food service spaces sit at the intersection of several code areas because a restaurant is both an assembly occupancy and a commercial kitchen condition. The safest approach is to separate the seating area and kitchen requirements, then check how they interact with the building's overall fire safety strategy, egress system, and ventilation provisions.

What to check first

  • Assembly occupancy classification drives the occupant load, exit sizing, and fire separation requirements for the seating area.
  • Commercial kitchen ventilation, including exhaust hoods and fire suppression for cooking equipment, adds requirements beyond the standard assembly provisions.
  • Plumbing fixture counts, grease interceptors, and accessibility provisions must all be checked alongside the fire and egress requirements.

Jurisdiction notes

National baseline

Start with the NBC assembly occupancy provisions and commercial kitchen ventilation requirements before narrowing to the specific restaurant condition.

Province and edition check

Confirm how the province adopts the assembly and kitchen ventilation provisions and whether any additional health or food safety regulations affect the building requirements.

Kitchen-specific codes

Commercial kitchen exhaust, fire suppression for cooking equipment, and grease management may be governed by referenced standards (like NFPA 96) and local health authority requirements in addition to the building code.

Work through it in this order

  1. Classify the occupancy and calculate the occupant load based on the seating layout and applicable assembly use factors.
  2. Check exit capacity, travel distance, and egress requirements for the calculated occupant load.
  3. Review commercial kitchen ventilation, exhaust hood, and cooking equipment fire suppression requirements.
  4. Verify plumbing fixtures, accessibility, and fire separation provisions, then document all cited requirements before advancing the design.

Common questions

How is occupant load calculated for a restaurant with mixed seating types?

The calculation typically requires separating areas by seating type and applying the appropriate factor to each. Fixed seats, table-and-chair dining, bar seating, and standing areas may each use different assumptions.

Does every restaurant kitchen need an exhaust hood with fire suppression?

It depends on the type of cooking equipment. Commercial cooking operations that produce grease-laden vapors typically require exhaust hoods with fire suppression, but the specific trigger depends on equipment type and referenced standards.

Are food trucks or temporary food service setups subject to the building code?

The answer depends on how the jurisdiction classifies the structure. Temporary and mobile food service operations may fall under different provisions or local bylaws.