Class 9 Buildings

Overview

This article explains the definition and subclasses of Class 9 buildings as per the National Construction Code (NCC), including distinctions between healthcare, assembly, and aged care facilities.

Why This Is Important

Helps identify when a building should be classified as 9a, 9b, or 9c.
Ensures compliance with fire safety, evacuation, and health-care-specific requirements.
Clarifies lab classification when part of health-care facilities.

Class 9 Building Subclassifications

1. Class 9a – Health-Care Buildings

These are generally hospitals or buildings where medical treatment is administered, and occupants may need physical assistance to evacuate in an emergency.

This includes:

Clinics or day surgeries
Places where patients become unconscious or immobile during/after treatment
Premises requiring on-site supervised medical care after treatment

2. Class 9b – Assembly Buildings

These are places where people gather for social, theatrical, political, religious, or civil purposes, such as:

Schools
Universities
Childcare centers
Pre-schools
Sporting facilities
Night clubs
Public transport buildings

3. Class 9c – Aged Care Buildings

These are residential accommodations for elderly people who:

Have varying levels of incapacity from aging
Are provided with personal care services
Require 24-hour staff assistance to evacuate in emergencies

Did You Know?

Laboratories located within health-care buildings are classified as Class 9a, despite general laboratory classification being Class 8.

Tips, Best Practices & Troubleshooting

Confirm with the client or council if the building will house medical, educational, or elderly care functions.
If unsure about evacuation support needs, consider 9a or 9c classification.
Be cautious of lab usage in medical settings—may shift classification to 9a.

Class 10 Buildings or Structures

Site Specific Engineering

Request Engineering (Site Check)