Growing Families Who Need More Space At Home

As your family grows up, you may find yourself needing more and more usable space. When you love where you live - there are plenty of options to look at to extend this space. Cubitt's can work with you on a Granny Flat or Home Extension - and even both at the same time, helping you turn the place you live - into the home you love.

The Home You Want With A Mortgage You Can Afford

Modifying existing homes is the foundation upon which Cubitt’s was built. Our team have completed hundreds of home extensions and additions across Sydney, Newcastle, Wollongong and surrounding areas. We build home extensions in the ACT and NSW, specialising in the Southern Highlands and South Coast, Newcastle, Central Coast and the Hunter. We have the design experience and the expert local tradies who will make it happen for you available in-house for a smooth and stress-free home extension experience. This is real! The home you want can be yours.

Family Home Extension
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Case Study: Granny Flat and Home Extension

Renee and Ricky were so happy with their Granny Flat built by Cubitt's a couple of years ago, they asked us to build their home extension. It looks superb and we are so proud they are just as happy with this build.

Limitless Potential for Granny Flats

A Granny Flat is a separate house on your property - sometimes attached, but there is a growing trend to build them not just to live in. If it’s got plumbing, a kitchen or a bathroom – NSW and ACT local council regulations will generally consider this to be a secondary dwelling – but that doesn’t mean you have to house someone full time in your second space.

At Cubitt’s we talk to clients every day who have such wonderful plans for their granny flats, here are just a few:

Man Cave

Teen Retreat

Home Office

Guest Quarters


Top Reasons Why Home Extensions Create a Better Family Future


Moving house is a pain
Buying and selling a house, negotiating, arranging all the paperwork required and physically moving location is an overwhelming and expensive process. Let us carry the load for you and transform your space into your dream home instead.


Don’t change address or schools!
Building a home extension means no need to make new friends, buy whole sets of new uniforms or forever be updating your address. Live where you love and stay connected to your community.


Stay where your memories were made – with added space!
Be together with the space to grow in an updated version of your beloved family home.


Financial freedom
Home Extensions are an investment towards increasing the value of your existing property, that avoids navigating the rocky conditions of the Australian housing market. Have the home you want, with a mortgage that allows you the freedom to live.


Transformation for comfort

At Cubitt’s, our designs reflect your style decision and comfort levels. No out-of-the-box solutions will be offered to you. Our designers start your design from scratch with your existing house plans as a baseplate.


Download Our Granny Flat Design Collection Brochure

NEW DESIGNS LAUNCHED OCTOBER! View the 10 NEW Energy Efficient NSW Designs, each with 4 or 5 façade options. Download the ACT Designs, each meeting the Liveable and Adaptable Housing Standard requirements


Visit Our Display Centres

Cubitt's Display Centre
and Head Office

152 Russell Street,
Emu Plains NSW 2750

Opening Hours:
Monday - Saturday 9am-5pm

Cubitt's Display Centre

124-126 Maitland Road,
Mayfield NSW 2304

Opening Hours:
Tuesday - Saturday: 9am-4pm

Cubitt's Display Centre

80-82 Kembla Street,
Fyshwick ACT 2609

Opening Hours:
Tuesday - Saturday: 9am-4pm

Cubitt's Display Centre

244 Shellharbour Road,
Barrack Heights NSW 2528

Opening Hours:
Tuesday - Saturday 9am-4pm


Frequently Asked Questions

Free On-Site Assessment at Your Property

Interested in finding out how to make a positive investment from a Cubitt's Granny Flat or Home Extension? Get in touch for a no-obligation site inspection today.

We require your name, email and phone number to get back to you - and the more you can tell us about your build project, the more effectively our local teams can help.