NBC 2025 update

What are the NBC 2025 accessibility requirements for dwelling units in Canada?

The NBC 2025 expands accessibility requirements to all types of dwelling units, introduces adaptable dwelling unit provisions in a new Subsection 3.8.4, and requires low-cost adaptability features including grab bar reinforcement, wider entrances, and reachable controls.

The 2025 NBC significantly broadens the scope of accessibility beyond common areas and public spaces to include all dwelling unit types. The new adaptable dwelling unit provisions require features like reinforced walls for future grab bar installation, wider unit entrances, and accessible control placement. These changes reflect an aging population and a shift toward designing for changing occupant needs over a building's lifespan.

What to check first

  • Accessibility requirements now apply to all types of dwelling units, not just common areas.
  • New Subsection 3.8.4 introduces adaptable dwelling unit requirements.
  • Low-cost adaptability features include grab bar reinforcement, wider entrances, and reachable controls.

Jurisdiction notes

National baseline

The expanded accessibility provisions are part of the NBC 2025 model code and require provincial adoption.

Provincial flexibility

The NBC provides flexibility for provinces and territories to adjust the application of dwelling unit accessibility to suit local needs.

Existing provincial requirements

Some provinces already have accessibility requirements for dwelling units that may exceed or differ from the NBC 2025 provisions.

Work through it in this order

  1. Confirm whether your province has adopted the NBC 2025 accessibility provisions for dwelling units.
  2. Identify which dwelling units in your project are subject to the new adaptable unit requirements.
  3. Review the specific adaptability features required including wall reinforcement, entrance widths, and control placement.
  4. Coordinate with structural and architectural drawings to incorporate grab bar reinforcement and accessible layouts.

Common questions

Do all units in a building need to be fully accessible?

No. The requirements focus on adaptable features that allow units to be modified for accessibility in the future, not full barrier-free design for every unit.

What is an adaptable dwelling unit?

An adaptable dwelling unit includes features like reinforced walls for grab bars, wider entrances, and reachable controls that make future accessibility modifications easier and less costly.

Does this apply to single-family houses?

The scope extends to all dwelling unit types, but provincial adoption determines which building types are included in practice.