Classification of Buildings

Buildings, in relation to their usage, are given varying classifications under the National Construction Code.
The Class of building is then referred to under the The various building types are classified.

Class 1a
A single dwelling being a detached house or one of a group of attached dwellings each separated by a firewall, including terrace houses, town houses, villa units.

Class 1b
A boarding house, guest house, hostel etc with a floor area under 300m2 and in which not more than 12 people would normally be resident, which is not located above or below another dwelling or another Class of building other than a private garage or 4 or more single dwellings located on one allotment and used for short term holiday accomodation.

Class 2
A building containing 2 or more sole occupancy units each being a separate dwelling.

Class3
A residential building other than a Class 1 or 2, which is a common place of long term or transient living for a number of unrelated persons including -
(a) a boarding house, guest house, hostel, lodging-house, or backpackers accomodation; or
(b) a residential part of a hotel or motel; or
(c) a residential part of a school; or
(d) accomodation for the aged, children or people with disabilities; or
(e) a residential part of a health care building which accomodates members of staff; or
(f) a residential part of a detention centre.

Class 4
A dwelling in a building that is Class 5, 6, 7, 8, or 9 if it is the only dwelling in the building.

Class 5
An office building used for professional or commercial purposes, excluding buildings of Class 6, 7, 8 or 9.

Class 6
A shop or other building for the sale of goods by retail or the supply of services direct to the public uncluding -
(a0 An eating room, cafe, restaurant, milkbar; or
(b) A dining room, bar area that is not an 'assembly building', shop or kiosk part of a hotel or motel; or
(c) A hairdressers or barbers shop, public laundry or undertakers establishment; or
(d) Market or sale room, showroom or service station.

Class 7
A building which is -
(a) Class 7a - a carpark; or
(b) Class 7b - for storage or display of goods or produce for sale by wholesale.

Class 8
A labratory, or a building in which handcraft or process for the production , assembling, altering, repairing, packing, finishing or cleaning of goods or produce is carried on for trade, sale or gain.

Class 9
A building of public nature -
(a) Class 9a - a health care building, including those parts of a building set aside as a labratory; or
(b) Class 9b - an assembly building including a trade workshop, labratory or the like in a primary or secondary school but excluding any other parts of the building that are of another class; or
(c) Class 9c - an aged care building.

Class 10
A non habitable building or structure -
(a) Class 10a - a non habitable building being a private garage, carport, shed or the like; or
(b) Class 10b - a structure being a fence, mast, antenna, retaining or free standing wall, swimming pool or the like.