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Building classifications

A quick reference for the National Construction Code classes referred to on our forms. Draft — please verify against the current NCC.

ClassTypical use
1aA single dwelling, house, or townhouse
1bA boarding house, guest house, or similar (small scale)
2A building with two or more dwellings (e.g. apartments)
3Residential accommodation for unrelated occupants (hotels, hostels, etc.)
4A dwelling within a building of another classification
5An office building
6A shop or building used for retail or the sale of services
7a / 7bA carpark / a building used for storage
8A laboratory, or building used for handling/processing/production
9a / 9b / 9cHealthcare / assembly (e.g. schools, theatres) / aged care
10a / 10b / 10cA non-habitable structure (shed, carport) / structure (fence, pool) / bushfire shelter

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