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Building Approvals Information

Instant Transportable Offices can provide a complete turnkey solution to your project needs by handling all local authority approvals on your behalf. Whilst we offer this service it should be noted that the costs associated with this process is not included with any building unless specifically itemised on your formal quotation.

In 2012 Western Australia adopted a new building act and as such the approvals process for any kind of building has undergone it's biggest change in more than 50 years. Customers need to be aware of the steps involved in the new process and how these will impact project timelines and budgets.

The New Building Approvals System information sheet summarises the new system now adpoted in Western Australia.
The Building Act Overview information sheet is also useful in understanding this new system.

In order to gain approval from your local authority there are a number of steps that may be required and these are specific to your exact situation. We summarise these below however it is important to note that some or all of these steps may be required for your site.


Local Authorities will require you to submit what is referred to as a Development Application (or Planning Application) when your use of the lot falls outside of certain standard guidelines. More often than not a Development Application WILL be required for your project.

The purpose of this application is for the Local Authority to assess your use of the lot and its impact on the surrounding lots. For this application to be completed there are some essential pieces of information required.

The following will be the minimum documentation requirements,

• Site Survey and Site Plan – clearly showing the lot dimensions and contours along with the proposed development that is going to be undertaken. Ie: the location of the proposed building, car parks, landscaping and any other structures that will be introduced to the development.

• Working Drawings for the proposed building which includes Elevations of the building.

• Specifications for the proposed building

Instant Transportable Offices can provide the Working Drawings and Specifications once you have confirmed the intended purchase of your building. Should you wish to purchase subject to you being granted your approvals then this can also be arranged.


A building permit application is required after a Development Application has been granted.

The first step in this new process is to obtain a CERTIFICATE OF DESIGN COMPLIANCE (CDC). In the case of commercial projects this must be undertaken by a licensed building surveyor. Some regional shires may offer this service but typically this service is no longer available from the local authority. A private individual or company performs this task.

Once an "CDC" has been issued, the builder or owner can take this along with a completed form BA01 - Application for Building Permit (certified) to the Local Authority to receive a Building Permit.

Construction can now commence and the project can be completed in accordance with the drawings and specifications.

When all work on the project is complete in accordance with the approved plans and providing all conditions of any planning approvals have also been completed/met then the builder can arrange for an inspection by the building surveyor. This inspection will ensure compliance with all required standards. If the Building Surveyor is satisfied then he will issue a CERTIFICATE OF CONSTRUCTION COMPLIANCE (CDC).

With the project now complete the owner or builder can apply to the Local Authority using form BA09 - Application for Occupancy Permit. Once issued this will then allow the owner to occupy the completed building works.

NOTE: Owners are not able to use or permit to be used any building until such time as an Occupany Permit is issued by the Local Authority.


There are basic minimum documentation requirements for ANY project regardless of it's size or complexity. The following will be the minimum documentation requirements,

• Site Survey and Site Plan

• Working Drawings for the proposed building which includes Elevations of the building.

• Specifications for the proposed building

• Energy Efficiency Assessment & Report

• Structural Engineers Certification & Report

Energy Efficiency Assessment is required on all commercial buildings excluding ancillary purpose buildings such as dedicated ablution/toilet facilities. The purpose of this assessment is to determine if the structure (as a whole) will comply with the minimum requirements as set out in the Building Code of Australia. Compliance is achieved using a number of methods and combinations thereof. The assessment must take into account many factors on the overall performance of the building.

It is often a misconception that insulating a building is all that is required. This is simply not the case. Each element of the building from the floor, walls, windows, roof and external attachments such as verandahs must be considered. External factors are also assessed such as other structures nearby or trees which may provide shading for the proposed building.

A site plan is required before an Energy Efficiency assessment can be carried out.

Structural Engineers Certification is required on all buildings regardless of it’s use or purpose. Councils will not approve any building application unless a structural engineer provides the documentation and only ink original signatures on the documents from the structural engineer will be accepted. Usually three copies are required by the council.
Because of the above requirements the certification process must be carried out for each client and site where a building will be located. This documentation is not generic and it cannot be reproduced from previous similar projects.

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18 Rogers Way,
Landsdale WA 6065
61 (0) 8 9406-6600
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