Are You Running Out of Room?
Need more space for a growing family or a home office? A house extension is the ideal solution to expand your living area without the hassle of moving. At Nexus Built, we design and build extensions that seamlessly integrate with your existing home, adding space and value.

Why Choose a House Extension?
- Increased Living Space: Add the bedrooms, living areas, or home office you’ve always needed.
- Enhanced Property Value: A well-designed extension significantly increases the market value of your home.
- Cost-Effective Solution: Often more affordable than buying a new home and moving your family.
- Customisation: Tailor the extension to your lifestyle, maximising the potential of your existing site.
Our House Extension Services
- Second and Third Storey Additions: Add another level to your home without losing valuable outdoor space.
- Room Additions: Expand your living room, add a master suite, or build the home office you’ve been dreaming of.
- Kitchen and Dining Extensions: Create open-plan living spaces that flow seamlessly to the outdoors.
- Secondary Dwellings: Add a granny flat or secondary dwelling to accommodate extended family or generate rental income.

How We’ll Guide You Through the Process
- 01Initial Consultation
We assess your home, discuss your needs, and explore the options available on your site. - 02Design Development
We work with your chosen designer to develop extension plans that complement your home. - 03Permitting and Approvals
We manage all council approvals and building permits on your behalf. - 04Site Preparation
We prepare the site and protect your existing home throughout construction. - 05Construction Phase
Quality construction with regular progress updates and site visits. - 06Final Inspections and Handover
Thorough inspections before handing over your completed extension.
How much does a house extension cost?
While costs vary depending on the size and complexity of the extension, you can use our estimating tool for a guide on pricing.
Frequently Asked Questions
Is it cheaper to extend up or out?
Both options have their pros and cons. A ground-floor extension avoids structural costs of adding a storey but uses more land. A second storey preserves outdoor space but requires structural engineering. Nexus Built can provide a tailored estimate for both options.
Do I need council approval for a house extension in Newcastle?
Most extensions require either a Development Application (DA) or a Complying Development Certificate (CDC). Nexus Built manages the approval process on your behalf.
How long does a house extension take?
The timeframe depends on the size and complexity of the extension. A typical extension takes between 3 and 6 months from approval to handover.
What Our Clients Say About Us
Our Service Areas
Nexus Built proudly serves Newcastle and Lake Macquarie regions, delivering custom homes, renovations, extensions and knockdown rebuilds across key suburbs like Adamstown, Charlestown, Eleebana and Merewether. Local expertise ensures seamless compliance with Newcastle & Lake Macquarie council heritage guidelines while maximising space and lifestyle in these coastal communities.
Newcastle Region
Lake Macquarie Region
Imagine Your Dream Home
With years of experience and a commitment to quality craftsmanship, Nexus Built delivers exceptional homes tailored to your unique vision. Contact us today to discuss your project and bring your dream to life.
Make it Real