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Our home extension services

When you need more room for your growing family in Box Hill, you can rely on Supa Group for exceptional home extensions or renovations. We give you more space and room to move without having to give up the home you love.

Our Box Hill Homes

We have been renovating and extending homes in Box Hill for many years and are experienced in working within the City of Whitehorse regulations. We can assist you in obtaining your planning permit and performing any necessary inspections to make the process of extending or renovating simple.

What our customers are saying

Jon Sedawie

Simply outstanding second story extension – better design than our architectural drawings we wasted money on. Then started in early November – promised lock up by Christmas. Promise delivered. And fully completed on time and exactly as quoted.

Howard Maher of North Balwyn

Supagroup completed a second story extension on our 1930’s deco house. The team, my wife and I worked  hard to design an ambitious addition to work in contrast with the existing building. The outcome is simply stunning and was completed in a timely fashion and to budget. Read full review here.

Danny and Melissa of Coburg

Our building supervisor Braidon Marshall was absolutely fantastic. He was friendly, approachable and accessible when we had a few issues out of hours. We sprung a leak on one rather rainy night, and he came to the rescue after his birthday dinner no less!

About Supa Group

Just like our home extensions and renovations, Supa Group has stood the test of time. We were founded in 1974 by Frank Way, laying a solid groundwork of commitment and service to his staff, subcontractors, and most importantly, his clients — families seeking to remain in the home they know and love.

Now owned and operated by Neil Gardiner, Supa Group’s original commitment has remained the same. Today, our clients are still offered the peace of mind that comes with hiring a builder who takes projects from conception to completion.

Our reputation as a multi-award-winning master builder is built upon a foundation of commitment to quality. We are proud to deliver best possible outcomes for our clients, and we want to do the same for you. Contact us for a free design consultation, and begin building towards the future.

SEE MORE + Book a Free Design Consultation

Why choose Supa Group

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Free Design Consultation Free Design Consultation
40 Years Experience 40 Years Experience
Fixed Price & Completion Time Fixed Price & Completion Time
All Areas Serviced All Areas Serviced


How much will my Box Hill renovation cost?

The cost of a renovation or extension varies depending on the size, complexity, and style of works. A ground level open plan renovation typically costs more than a second storey extension just because of the works involved.

A home extension is often more affordable than you might think, depending on what you are looking to undertake. From the initial consultation through to the final touches, we are committed to keeping your costs low. Speak to our team and book your Free Design Consultation today.

How do I know if my home is heritage listed?

Melbourne has a wonderful array of heritage architecture which it is the responsibility of homeowners to preserve. But having period features does not preclude you from investing in a stylish and tasteful renovation. Supa Group can help you to navigate planning obligations and ensure the finished outcome is special and sustainable.

If you have period features on your home, why not visit the Heritage Council of Victoria website and identify any potential obligations of being a heritage homeowner.

Do I need to move out of my home while renovations are taking place?

Many of our clients opt to remain in their homes while renovations are taking place. So long as you have an operating bathroom and a toilet, your home is habitable. Of course, there are some disruptions which will take place such as noise, dust, and debris — but we will work with you to make sure disruptions are as minimal as possible.

What kind of building permits or planning permissions do I need for my home in Box Hill?

There is a range of permits and planning hoops that you will need to jump through, but we can help you navigate every aspect. When you work with us, we can ensure that your renovation or extension is completed on budget and on time.

It may seem daunting to consider undertaking a renovation, but with us on your side, we make the process simple and ensure your project meets all council requirements.

Book your Free Design Consultation

Not sure where to begin? Our Free Design Consultation is the perfect place to start. The 3D concept drawing helps you visualise your dream space.