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Ground floor extensions

Add value and space with a new single-storey extension

From start to finish
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HIA 2022 Finalist
Professional small builder/renovator

Fixed price & completion time

Concept to completion

Free design consultation

Over 45 years experience

Live in the space you’ve always wanted

At Supa Group, our team creates unique and stunning ground floor home extensions. A ground floor extension from Supa Group is the ideal way to maximise the space and functionality of your home.

At Supa Group, our team creates unique and stunning ground-floor home extensions. Our single-storey home extensions are the ideal way to maximise your home's living space and functionality.

As ground-floor house extension specialists, we believe in turning the house you love into a home. We add space and style to your home to give it the liveability you need to grow into the future.

When adding to the ground floor, we create unique, functional designs that you just can't get from most knockdown rebuilds. Our in-house designers are here to give you even more value for money by creating a functional design that works within your budget without needing additional architecture services.

Extending your ground floor will add much more space, increase the square meterage, and add significant value to your home. From new living and dining areas to a brand-new quiet bedroom retreat to an expansive entertaining area, there's nothing we can't do.

Book your free consultation

Looking for single storey home extensions? Give us a call or book your complimentary design consultation today.
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We get to know you and your goals, so we can design the ideal ground floor extension.
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Concept design
We create 3D designs and give you a virtual walkthrough of the house extension.
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Contract & Build
Once you approve your design, we provide a guaranteed start date and we keep your build on schedule.
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Enjoy your space
You can finally enjoy your home. We also provide complimentary aftercare services.

Customise your floorplan

Your design will be just that: yours. It will reflect your wants, needs, and budget to deliver the very best of extensions, adding unmatched liveability, appeal and value to your home.

Whatever your needs, talk to us today to arrange an obligation-free appointment, where we’ll begin our work with you. In this stage, we will discuss your vision, your budget, and local planning constraints to outline a ground-floor transformation. Our comprehensive end-to-end process offers you:

  • A Free Initial Design Consultation to help you imagine your ideal family home
  • Financing referrals (if you require them) to assist you in realising your goals sooner
  • Fixed prices, allowing you complete control over the project
  • Fixed completion times, with the option to remain in your home if possible
  • 10-year structural guarantee on works, ensuring that you can enjoy your home for years

Considering a multi-generational home?

Transform your home into a space built for your family – contact us today, and let's design your multi-generational dream home extension together!

Learn more

Choose a master builder with decades of experience

A multi-award winner and proud to be both a long-term Master Builder and HIA member, another big reason for our reputation is our highly trained and experienced staff, from management to trades.

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Master Builders

As a member of Master Builders Victoria, we’re recognised as a reliable and reputable business that completes works to the highest industry standards.

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HIA Member

We’re proud to be a part of Australia’s biggest residential building association that promotes fairness, integrity, and value.

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Award winning

Most recently, we were finalists in the Professional Small Builder/Renovator category in the 2022 HIA Awards.

See what we can do

Have a look at our recent projects to get a feel for the type of transformation you can expect in your own home. Get ideas, be inspired, and then we’ll create a more spacious home.

Californian bungalow in Coburg
  • New open plan living area
  • New outdoor entertaining area
  • Redesigned and renovated ensuite
Ground floor extension in Mitcham
  • New master bedroom and ensuite
  • New modern kitchen and dining area
  • New alfresco area
Ground and second storey extension in Kew
  • Ground floor extension with new open living, kitchen, and dining area.
  • First floor extension with two new bedrooms.
  • Master bedroom with luxury ensuite.

Book a free consultation for your extension

Hear from our clients


Your questions answered

Will I need to move out during construction?

In most cases, homeowners find it preferable to move out of the home for at least part of the construction. As an experienced second-storey extension builder, we will plan to minimise disruptions to your living area. You can continue to live at home throughout the construction as long as you still have access to kitchen and bathroom facilities. 

You can discuss all options with our team, and your building supervisor will also keep you up to date as each stage of your construction progresses, so you’ll know exactly what to expect every step of the way.

How much do ground-floor extensions cost?

The cost of a ground-floor extension varies depending on the scope of the work. Ground-floor extensions typically involve new kitchens, pantries, laundries, and open-plan living areas. But they may also be as simple as adding a couple of bedrooms or a living room. Other factors include the overall size and type of materials used.

Every project is different, so the best way to find out how much your ground-floor extension will cost will be to book an initial consultation with one of our experienced Design Consultants.

Can you renovate my existing house as well?

Yes, we can renovate existing bathrooms, kitchens, bedrooms, and other areas as part of your extension project. Learn more about renovating with your extension.

What type of ground-floor extension can I have?

When it comes to completing a ground-floor extension in your existing home, there’s no limit to what can be achieved. It’s your property and your renovation project.

We can deliver quality single-storey extensions that can add the following to create more modern homes:

  • More space
  • New space
  • Family room
  • Laundry room
  • Extra bedroom
  • Guest bedroom
  • Home theatre
  • Air conditioning
  • Living area
  • Alfresco dining area
  • Outdoor space

The perfect solution may be a bigger house or an extended single storey home. We also offer second-storey extension services. Contact us today, and let's work together to achieve your home improvement dreams.

Do I need planning permission for my ground-floor extension?

Depending on where you live, your local council may require you to seek planning permission or a building permit before you begin. Council approval is an essential part of our planning process, so we’ll let you know what is required in terms of other statutory costs, like stamp duty.

Book a free consultation to start your journey

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