WHAT ARE THE BUILDING CLASSES IN QUEENSLAND?

Ever wondered, or are you wondering why buildings are classified? You’re not alone!

There are many different structures which can be built – all different in sizes, and are used in different ways. They also have different levels of safety; rules and regulations which are required to be adhered to.

By classifying these structures into different classes, it identifies key physical traits of each building and what it is used for, and ensure that all building work complies with the required code associated with that class.

The diagrams below illustrates the classes of buildings within Queensland (as determined by the QBCC)

CLASS 1A

 

A single detached house, or a group of two or more attached dwellings separated by a fire resistant wall.

house

townhouses

villa

terrace houses

CLASS 1B

 

A dwelling with a total area of all floors not exceeding 300m² and does not exceed 12 persons.

guest house

small boarding house

CLASS 2

 

A building with 2 more or more separate sole-occupancy units.

a block of units

CLASS 3

 

A residential building for long-term/transient living (other than Class 1 or 2 building)

large boarding house

motel

backpackers

detention centre

CLASS 4

 

A dwelling which is also used as a commercial building.

store + residential structure

CLASS 5

 

An office building used for professional or commercial purposes.

professional offices

commercial offices

CLASS 6

 

A shop or building where goods or services are available to the public.

cafe/restaurant

shop

service station

CLASS 7A

 

A car park building.

car park

CLASS 7B

 

A storage or wholesale building.

wholesale warehouse

CLASS 8

 

A laboratory or a building where processing occurs.

factory

laboratory

CLASS 9A

 

A healthcare building.

hospital

CLASS 9B

 

An assembly building.

assembly hall

schools + workshop

CLASS 9C

 

An aged care building.

aged care facility

CLASS 10A

 

A building or structure which is non-habitable.

private garage

shed

carport

CLASS 10B

 

A structure being a fence, mast, antenna, retaining wall, swimming pool or similar.

fence

retaining wall

swimming pool

CLASS 10C

 

A private bushfire shelter.

bushfire shelter

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