New construction baseline
New buildings must comply with the current edition of the provincial building code at the time of permit application.
Canadian building code question
How does the building code apply differently to renovations vs new construction in Canada?
The building code generally requires new construction to meet current code in full, while renovations may have different compliance thresholds depending on the scope, the provincial code, and whether the work triggers specific upgrade requirements.
The distinction between renovation and new construction is one of the most common compliance questions in Canadian building. New buildings must meet the current code edition in full. Renovations are more complex — the applicable requirements depend on the scope of work, the provincial code's approach to existing buildings, and whether the renovation triggers specific upgrade thresholds for fire safety, accessibility, energy, or structural performance. Getting this distinction wrong can lead to unexpected costs or non-compliance.
What to check first
- New construction must meet the current building code edition in full.
- Renovation compliance depends on the scope of work, provincial code provisions, and specific upgrade triggers.
- Provincial approaches to existing buildings and renovations vary — some provinces have more detailed provisions than others.
Jurisdiction notes
Renovation compliance thresholds
Most provincial codes have provisions that set different compliance levels for renovations based on the scope and nature of the work.
Upgrade triggers
Certain renovation scopes can trigger requirements to upgrade existing building systems — such as fire safety, accessibility, or energy performance — beyond the renovation area itself.
Work through it in this order
- Determine whether the work is classified as new construction, renovation, alteration, repair, or change of use under the applicable provincial code.
- Identify the specific compliance level required for the scope of work.
- Check whether the renovation triggers upgrade requirements for existing building systems.
- Document the applicable code provisions and any professional assessments needed to support the compliance approach.
Common questions
Does a renovation have to meet current building code?
It depends on the scope. The renovated area generally must meet current code, but existing areas may not need upgrading unless specific triggers are met.
What triggers a full building code upgrade during a renovation?
Triggers vary by province but can include change of occupancy, exceeding a renovation cost threshold, or affecting fire separations or means of egress.
Is a change of use the same as a renovation?
No. A change of use (change of occupancy classification) typically has its own compliance requirements that may be more extensive than a renovation of the same scope.