Part 1.3 Classification
1.3.1 Principles of classification
The classification of a building or part of a building is determined by the purpose for which it is designed, constructed or adapted to be used.
- Class 1 and 10 buildings are classified in accordance with this Part; and
- Class 2 to 9 buildings are classified in accordance with Section A of BCA, Volume One.
- Access requirements for people with a disability for certain Class 1b and Class 10a buildings, and certain Class 10b swimming pools, are contained in Volume One of the BCA. These requirements are based on the Disability (Access to Premises – Buildings) Standards which are available from the Australian Government Attorney-General's Department website at www.ag.gov.au.
Class 1 and 10 buildings are classified as follows:
Class 1 — one or more buildings, which in association constitute—
Class 1a — a single dwelling being—
a detached house; or
one of a group of two or more attached dwellings, each being a building, separated by a fire-resisting wall, including a row house, terrace house, town house or villa unit; or
Class 1b —
a boarding house, guest house, hostel or the like—
with a total area of all floors not exceeding 300 m2 measured over the enclosing walls of the Class 1b building; and
in which not more than 12 persons would ordinarily be resident; or
4 or more single dwellings located on one allotment and used for short-term holiday accommodation,
which are not located above or below another dwelling or another Class of building other than a private garage (see Figure 1.3.1, 1.3.2 and 1.3.3).
Class 1b buildings used for short-term holiday accommodation include cabins in caravan parks, tourist parks, farm stay, holiday resorts and similar tourist accommodation. This accommodation itself is typically rented out on a commercial basis for short periods and generally does not require the signing of a lease agreement. Short-term accommodation can also be provided in a boarding house, guest house, hostel, bed and breakfast accommodation or the like.
Class 10 — a non-habitable building or structure being—
Class 10a — a non-habitable building being a private garage, carport, shed, or the like; or
Class 10b — a structure being a fence, mast, antenna, retaining or free-standing wall, swimming pool, or the like; or
Class 10c — a private bushfire shelter.
(see Figure 1.3.3).
IDENTIFICATION OF CLASS 1 BUILDINGS
Note: For fire-resisting construction between Class 1 buildings see Part 3.7.1.
TYPICAL CLASS 1 CONFIGURATIONS
DOMESTIC ALLOTMENT — CLASSIFICATION OF BUILDINGS AND STRUCTURES
1.3.3 Multiple classifications
Each part of a building must be classified separately, and—
Classes 1a, 1b, 10a, 10b and 10c are separate classifications; and
a reference to—
Class 1 — is to Class 1a and 1b; and
Class 10 — is to Class 10a, 10b and 10c; and
where parts have different purposes — if not more than 10% of the floor area of a Class 1 building is used for a purpose which is a different classification, the classification of Class 1 may apply to the whole building.