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Renovations & Additions Approvals

Servicing Cairns To Townsville, Western QLD To Mt Isa & Torres Strait

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Renovations, Additions, Alterations

Are you wanting to make renovations, additions or alterations to your home and unsure when you need a building approval?

For the most part, you will need a building approval when you are changing something structurally within the house. For example, you want to add a couple of rooms to your existing home, change your garage into a habitable room or knock a wall down that is used to stabilise the home.

You may be confused as to why you would need to get a permit to change a garage into a habitable room seeing you aren’t structurally changing anything, but what you are doing is changing the classification of the room. A garage is a Class 10a structure and a habitable area is class 1a. A class 10a has different standards than a habitable room a Class 1a structure. Two major differences are the height of the slab above adjacent ground level and ceiling heights. A habitable room needs much more than a garage.

If you are unsure it is best to contact us to see if the proposed changes will be affected by the Queensland Development Code or the Building Code of Australia.

Who can we help?

The All Construction Approvals team can help Homeowners, Home Builders, Owner Builders, Renovators and Contractors every step of the way. We can get y0u through the process seamlessly with advice you can trust.

  • Home Owners
  • Home Builders
  • Owner Builders
  • Renovators
  • Contractors

How can we help?

You need a building approval when you are changing a building class or if you are structurally changing it. This can sometimes be hard to determine so it is best to contact us to be sure.

We are able to help with any approvals in the state of Queensland. You can start the process by coming into our office, giving us a call or via email.

The Process

The best thing to do before you start any home project is to call us. We will be able to advise you if the building work needs a building approval or not. If it turns out that you do need a building approval, we will help you through the process. We will need a signed engagement form stating you are using us as your certifier, from there we will be able to assist you all the way through the building approval process.

The process includes starting an application, lodging it with council and conducting inspections as they are needed during the different stages of your building work. Once all works are completed and built to plan. We will issue you a final certificate which also goes on record with council so when you go to sell your property in the future the new owner will be able to see all works were legal.

Choose the right company

The ACA team are here to help. We have a wealth of experience when it comes to building approvals in general. You can count on our team to provide you the right advice the first time. Harald Weber the owner of ACA, has been working in the industry for over 30 years and he has assessed approvals ranging from tiny structures all the way up to high-rise buildings. He and the team are here to help every step of the way.

Experience Matters

The ACA team have over 20 years of building approval experience. With our personalised, reliable and consistent service and long-standing industry relationships, you are sure to notice the ACA difference.

Our past alteration, addition and renovation approval project examples:

  • Internal alterations
  • Carports
  • Patios
  • Full additions
building certifiers cairns all construction approvals looking at a residential building approval

Frequently Asked Questions

Why do I need a building approval if I just want to change my patio into a bedroom?

You need a building approval because you are changing the classification of the structure. A patio is a Class 10a you are wanting to make it a habitable room which is a Class 1a structure. This means they have different regulations.

How long does a building approval last?

You will have two-years to complete your project, you have the option to renew after the two-years.

What do I do if I am unsure if I need a building permit or not?

If you are unsure for any reason give us a call and we will be able to assist you.

What do I do if the work has already been completed, but it came up in a search that it wasn’t approved?

This is considered a retrospective building approval. We are still able to help you in most circumstances, but it may include rectifications to the works already completed to bring it up to code. It is always best practice to check with us before you build.


Thank you All Construction Approvals. Great service organising and coordinating and inspecting my project. You made it so easy. Would highly recommend all your helpful staff.

Suzan Quigg

Helpful when I needed guidance with my carport project and super quick when it came to approve it. Their fees also favourable, compared to competition. Very satisfied.

Joao Filipe Castro Santos

I have worked with ACApprovals professionally on a number of building projects for close to 10 years. ACA have always provided competitive fees, prompt/fair assessments, delivered information clearly to the design and construction team for smooth delivery of projects.

Paul Malone

The team a ACA are always helpful. no question is silly and the advice given is honest and accurate regardless of if its retrospective works or for the future. If you are not sure on the requirements pick up your phone and talk to a friendly building certifier.

Mark Leitner

All Construction Approvals provided excellent service following up on the paperwork and inspecting the building to confirm the renovation was completed in accordance with the Cairns Council's standards. Thanks Kim, Ethan and the ACA team.

Steve Willis

Every process runs smoothly and is dealt with in a highly professional manner. Even quick advice over the phone never seems to be too much of a hassle and is highly appreciated!

TinaCardinal Roofing and Sheds

I would not go to anyone else for the professional high level of service you firm provides. Your staff are highly efficient and knowledgeable and go out of their way to provide excellent service. Well done to all of you and don't change anything it all works well.

Terry PlosPlos Constructions Pty Ltd

About All Construction Approvals

All Construction Approvals (ACA) is a privately owned company formed in 2001 by Harald Weber. ACA was created in response to market demand for a personalised, reliable and consistent service in relation to building certification and consultancy work.

Our goal is to provide the highest level of professional service in building regulation and control. We offer innovative, cost effective, quality outcomes to ensure building compliance and project success.

Enquire Now

Call 07 4054 4588