Canadian building code question

What are the building code requirements for condominium buildings in Canada?

Condominium buildings must meet residential occupancy building code requirements for fire separation between suites, sound transmission between units, accessibility of common areas and a proportion of units, means of egress, and construction type based on building height and area.

Condominium buildings are residential occupancies where individual ownership of units creates specific requirements for separation, sound control, and accessibility. The building code treats them similarly to other multi-unit residential buildings, but the ownership structure means that fire separation between suites, sound transmission class ratings between units, and accessibility provisions for common areas have direct implications for unit design, construction quality, and owner expectations.

What to check first

  • Fire separation between condominium suites must meet the residential occupancy requirements in the applicable code edition.
  • Sound transmission class (STC) ratings between units are required to meet minimum standards for both airborne and impact sound.
  • Accessibility requirements apply to common areas, building entrances, and a proportion of dwelling units.

Jurisdiction notes

National baseline

The NBC sets fire separation, STC, and accessibility requirements for multi-unit residential buildings that apply to condominium construction.

Provincial adoption

Provincial building codes may amend STC requirements, accessibility provisions, or add condo-specific provisions.

Project variables

Building height, number of units, construction type, and whether the building includes mixed-use commercial components all affect requirements.

Work through it in this order

  1. Determine the building's construction type based on height, area, and occupancy.
  2. Check fire separation requirements between suites, between floors, and between residential and non-residential areas.
  3. Verify STC ratings for walls and floors between units.
  4. Confirm accessibility requirements for common areas and the required proportion of accessible units.

Common questions

What fire separation is required between condominium units?

Fire separation between suites must meet the residential occupancy requirements — typically 1 hour, but this varies with building height and construction type.

What STC rating is required between condominium units?

The minimum STC rating between dwelling units is specified in the building code and typically applies to both walls and floor/ceiling assemblies.

How many accessible units are required in a condominium building?

The required proportion of accessible or adaptable units depends on building size and provincial requirements — check the applicable code edition and provincial amendments.