Building Classes

The National Construction Code groups buildings and structures into classes according to how they are designed, constructed or adapted to be used. The classification helps determine which technical building requirements apply.

A building can contain parts with different classifications. For example, a building may contain a shop, office and dwelling, with each part classified according to its use.

Overview of Building Classes

Building class

Common description

What it includes

Class 1

Houses and small accommodation buildings

Class 1a: A detached house or an attached dwelling separated from other dwellings by a fire-resisting wall, such as a terrace house, townhouse or villa.

Class 1b: A small boarding house, guest house, hostel or similar building that ordinarily accommodates no more than 12 people and has a total floor area no greater than 300 square metres. It can also include four or more single dwellings on one allotment used for short-term holiday accommodation.

Class 2

Apartments and residential units

A building containing two or more sole-occupancy units, with each unit forming a separate dwelling. Examples include apartment buildings and residential units located above or beside one another.

Class 3

Residential accommodation for unrelated people

Residential buildings providing long-term or temporary accommodation for unrelated people. Examples include larger boarding houses, hostels, backpacker accommodation, residential parts of hotels or motels, dormitories and workers' accommodation.

Class 4

A dwelling within a non-residential building

The only dwelling located within a Class 5, 6, 7, 8 or 9 building. Examples include a caretaker's flat in a commercial building or a single residence above a shop.

Class 5

Offices

Buildings used for professional or commercial purposes. Examples include business offices, professional suites, government offices, accountants' offices and legal practices.

Class 6

Shops, restaurants and services

Buildings where goods are sold by retail or services are provided directly to the public. Examples include shops, cafes, restaurants, bars that are not assembly buildings, hairdressers, showrooms, supermarkets and service stations.

Class 7

Carparks, warehouses and storage buildings

Class 7a: A carpark.

Class 7b: A building used for storage or for displaying goods or produce for sale by wholesale, such as a warehouse or wholesale showroom.

Class 8

Factories, workshops and laboratories

Buildings used for manufacturing, assembling, altering, repairing, packing, finishing, cleaning or processing goods or produce for sale. Examples include factories, workshops, laboratories and produce-processing buildings.

Class 9

Healthcare, assembly and residential care buildings

Class 9a: Healthcare buildings, such as hospitals, day surgeries and healthcare facilities.

Class 9b: Assembly buildings, such as schools, early childhood centres, community halls, churches, theatres, sporting facilities and transport stations.

Class 9c: Residential care buildings, including certain aged-care facilities.

Class 10

Non-habitable buildings and structures

Class 10a: Non-habitable buildings such as private garages, carports and sheds.

Class 10b: Structures such as fences, masts, antennas, retaining walls, freestanding walls and swimming pools.

Class 10c: Private bushfire shelters.

 

Which Classification Applies

The table provides general guidance only. Classification depends on the proposed use, design, layout and occupants of the building or structure.

A building may have more than one classification, and changing how a building is used may change its classification.

Contact the Shire before lodging an application if the proposed use is unusual, mixed or changing.

A registered building surveyor can provide project-specific classification and compliance advice.

Need Help

For general enquiries:

Call: (08) 9892 1111

Email: [email protected]

Visit: Shire Administration Centre at 22-24 Lowood Road, Mount Barker during opening hours.

Related links

National Construction Code - current code and supporting resources