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Building Classes Explained

Which one applies for your new steel building?

All buildings in Australia come under the Building Code of Australia (BCA), which contains regulations and requirements that the building must meet.

These requirements vary depending on what you’re planning to use the building for. These different uses make up the building classes.

There are ten main building classes (some with multiple sub-classes) within the BCA. Typically, TechSpan buildings come under one of the four classes listed in more detail at the end of this article.

Building Classes Overview

Class 1.

Class 1a – A single dwelling being a detached house, or one or more attached dwellings, each being a building, separated by a fire-resisting wall, including a row house, terrace house, townhouse or villa unit.

Class 1b – A boarding house, guest house, a hostel or the like with a total area of all floors not exceeding 300m2, and where not more than 12 reside and is not located above or below another dwelling or another Class of building other than a private garage

Class 2.

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

Class 3.

A residential building, other than a Class 1 or 2 building, is a commonplace of long term or transient living for a number of unrelated persons. Example: boarding-house, hostel, backpackers accommodation or residential part of a hotel, motel, school or 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 that is 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. Example: café, restaurant, kiosk, hairdressers, showroom or service station.

Class 7.

Class 7a – A building which is a car park.

Class 7b – A building which is for storage or display of goods or produce for sale by wholesale.

Class 8.

A laboratory or a building in which a handicraft 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 a public nature.

Class 9a – A health care building, including those parts of the building set aside as a laboratory.

Class 9b – An assembly building, including a trade workshop, laboratory, or the like, in a primary or secondary school, but excluding any other parts of the building that are of another class.

Class 9c – An aged care building.

Class 10.

A non-habitable building or structure.

Class 10a – A private garage, carport, shed or the like.


What Building Class is My New TechSpan Building?


Class 7b — Storage Buildings

A building which is for storage or display of goods or produce for sale by wholesale.

Examples of TechSpan buildings that would fall into this category are showrooms and warehouses.


Class 8 — Processing & Factory Buildings

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

Examples of TechSpan buildings that would fall into this category are factory, packing, product, manufacturing and workshop sheds.


Class 9b — Assembly Buildings

An assembly building, including a trade workshop, laboratory, or the like, in a primary or secondary school, but excluding any other parts of the building that are of another class.

An example of TechSpan buildings that would fall into this category is school COLAs.


Class 10a — Carports & Sheds

A private garage, carport, shed or the like.

Examples of TechSpan buildings that would fall into this category are multipurpose farm sheds and private machinery sheds.

We’re Here to Help

If you are unsure which class best applies to a building you are planning, the expert team at TechSpan can help you. Get in touch with our design consultants to get started.

Need more information?

Get in touch with the TechSpan team to book your FREE design consultation.

 

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