Custom Extensions
Castle Hill
AGATHĒ designs and builds custom extensions in Castle Hill, adding space, light, and lasting value to your home with expert craftsmanship and a tailored approach.
AGATHĒ designs and builds custom extensions in Castle Hill, adding space, light, and lasting value to your home with expert craftsmanship and a tailored approach.
From a new living room or master suite to a second storey, alfresco, or garage conversion, we design and build additions that blend seamlessly with your existing home — adding space, light, and value while reflecting the way you live.
Transform your Castle Hill home with Sydney's trusted renovation experts. Whether you're dreaming of a stunning extension, luxury kitchen upgrade, or complete home transformation, we make visions reality. Ready to start your journey? Book a consultation and let's create something extraordinary together.
Partial to full-scale renovations that transform your existing spaces into healthy, beautiful family living environments.
Custom extensions that integrate seamlessly with your home's design, enhancing space, comfort and value.
Start the right way with our PAC-certified process — aligning design, budget and timeline before you build.
Scandinavian-inspired homes and cabins built to a healthy, high-performance standard.
Builder-led delivery of custom homes and certified Passive House builds, managed end to end.
From design to delivery, we manage every detail for a smooth, on-time, on-budget build.
Whether you are at the early thinking stage or ready to move, we are happy to have an honest conversation. No obligation. We will tell you if we are not the right fit.