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Windsor home extensions

Windsor home extensions

Accredited Master Builder house extension experts in Windsor

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

Stylish extensions with end-to-end service for Windsor homes

Our goal is simple: to construct seamless extensions and flawless renovations to ensure your Windsor home is fit for your life. Whether you plan on growing your family or downsizing now that the kids have left, or you plan to bring work home with you or need more space for your hobbies, we can realise your most ambitious ideas.

Supa Group have spent nearly half a century earning our critically lauded reputation as trustworthy, reliable home renovation and extension specialists. In that time, we’ve developed the facilities to offer complete end-to-end service, and our friendly team will guide you from the initial design discussions right through to the final key handover with impeccable quality service.

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We’ll get the permits and permission from Windsor’s council

We’ve been fortunate enough to build renovations and extensions for several homes in and around Windsor. Our warm relationships with Melbourne’s councils allow us to efficiently navigate their processes. Leave the paperwork to our team, and we’ll make sure your building and construction permits and permissions are in order.

Windsor’s dream home extension builders, at your service

Our home extension services

From experience, we can tell you the definition of a ‘dream home’ is not only unique to every family, but it’s also constantly evolving. It has to; as your life and needs change, your home needs to adapt. Supa Group marry form and function to create modern or period-appropriate home extensions and renovations that’ll look great and meet your needs. We’ll leave your old property looking and feeling like a new home in no time.

Looking to extend the footprint of your home to give your growing family more room to move? We don’t believe you should have to compromise on where you live to get more room! Our home extensions give you the lifestyle you desire in the home you love.

From consultation to completion, we’ve got you covered

To begin, all we need is a goal. Would you like to create a quiet, natural light-filled home office? Or maybe add a whole new second storey to your existing house? Do you want to renovate an outdated floorplan because you prefer spacious open-plan living? You don’t need to know the details; just tell us what your goals are, and we’ll explore design solutions in a collaborative and exciting process.

  • Dining and living space extensions
  • Guest and master bedroom extensions
  • Bathroom and amenity extensions
  • Home office extensions
  • Patio, decking and outdoor living extensions
  • Second storey extensions
  • Full house renovations
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Fixed price & completion time

Concept to completion

Free design consultation

Over 45 years experience

Our process is as simple as 1, 2, 3 (4)

Your extension from start to finish

It’s natural to feel a little anxious about your Windsor home extension project. It’s a big undertaking, after all. That’s why we’ve developed a straightforward, streamlined and transparent process. At our initial no-obligation consultation, we’ll talk you through every stage between then and the last day of your completed project.

See how your home extension will progress so you know what to expect.Learn about our process in detail.

A consultation for a home extension


We get to know you and what you want to achieve with our extension services, so we can design the ideal solution for you.

3D concept design of a home extension


We create 3D designs of your home extension so you can do a virtual walkthrough and make any changes you need.

A house extension being built


Once you approve your design, we provide a guaranteed start date for your extension, and we keep it on schedule.

Inspirational living room area photo


You can finally enjoy your dream home. We also provide complimentary aftercare services if you experience any issues.

A Melbourne second storey home extension photo

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Explore our single and double-storey extension projects

See what we can do

We’ve gathered a few of our favourite projects to show you how we could renovate or extend your Windsor home. Don’t forget to browse our complete list of projects.

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 your perfect home.

Architectural delight in Caulfield South
  • 2 new bathrooms
  • New open plan kitchen, dining and living area
  • Renovations throughout
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.
Creating space in Clifton Hill
  • New bedroom and ensuite
  • Open plan kitchen dining and living area
  • Paved alfresco area

Hear from our clients


Frequently asked questions

Do I need council permits for house extensions in Windsor?

Yes. Windsor’s local council requires homeowners to apply for planning and building permits before house extensions and renovations can take place. Supa Group will happily handle all of that paperwork on your behalf to ensure we have all the permissions necessary for work to continue.

Can I live in my Windsor house during extension construction?

Certainly, as long as we can offer you safe access to essential amenities, including your bedroom, bathroom and kitchen. If these spaces become inaccessible, you will have to find temporary alternative living arrangements. However, our schedule will give you plenty of time to make those arrangements.

I’d like Supa Group to use my preferred contractors. Will you?

Yes. You’re welcome to suggest contractors and specialists for us to work with. All we ask is that they provide the necessary OH&S and insurance accreditation and that they commit to keeping our schedule so that we can guarantee our completion date.

Can I add extensions to a heritage home in Windsor?

Yes. As with all Melbourne councils, Windsor has unique and rigorous regulations around the types of work that can be done to its heritage-listed properties. Broadly speaking, Windsor’s council is likely to approve extensions that respect the existing building's historical legacy and unique architectural design. Supa Group’s design team will ensure that our designs meet both your requirements and your council’s.

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