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Apex Alterations & Additions

Does a Home Extension Require Council Approval?

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Whether you require council approval or not for your home extension projects depends on a number of factors.

Here is everything you need to know about applying for council approval in regards to home extensions.


For starters, each local government has their own unique guidelines eg. DCP’s and LEP’s when it comes to home extensions.

You should always consult your relevant local council to determine what those laws are, how they may apply to you, what is involved in the application process, and how to increase your chances of a successful application.

This way, you’ll know exactly what to expect from the process, and this will ensure the renovation itself is structurally sound and compliant with the Building Code of Australia.


The size and complexity of your project will determine whether you need council approval. Some minor internal and external alterations can be made without the need for council approval.

But it’s always a good idea to check with your local council first to avoid the risk of an unauthorised extension – be it a ground floor extension, second-storey addition, or anything else.

Keep in mind. Any alterations to crucial infrastructure such as electricity, plumbing, gas, and drainages must be serviced by a suitably qualified tradesperson in their relevant field. Make sure these tradespeople have current licences, insurance, and experience in the type of work you need carried out.

You may also wish to propose a simple contract to ensure the terms of employment (hours, scope of work, budget) is fixed and the agreement is crystal-clear to all parties involved.


The type of zoning around your property can also determine whether you require council approval for a home extension.

Your property zone outlines exactly what you can do with your property, how it should be built in relation to the surrounding area, and any conditions with regards to overhanging structures. For example, certain heritage listed or culturally significant sites may prohibit the construction of certain structures.

Whether such laws apply to you will depend on your location and what you hope to achieve with the extension. Do you want to correct existing mistakes? Increase the amount of living space? Ensure the property is up-to-code with the latest local government guidelines? Or make more room for storage.

Your vision, while not the only deciding factor, will influence how the local government perceives your proposal for an extension and their chances of approving your application, if one is needed in the first place.


Soil testing reports are a crucial aspect of building your home extension. The type of soil and its characteristics play a key role in determining how deep the foundation has to be built, and whether any other considerations have to be made to ensure the extension is structurally sound.

Depending on your location and local council approval requirements for a home extension, you may need to provide a detailed soil report to be considered for approval.

Failure to test the soil can increase the risk of problems later on. Dropped floors, cracked slabs, and uneven door and window configurations are just some of the many symptoms of severe building movement.

By having the soil tested, this will ensure your home extension is adequately secured in order to resist the natural effects of building movement, saving you money and headache later on.

Not sure if you require council approval for your home extension?

Contact APEX Alterations & Additions today to request a FREE onsite meeting with a qualified local builder. We can advise you on the specific local council requirements in your area and how they may apply to you, so you can make the right choice for your next renovation.

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