Design & Architecture

BASIX and 7-Star Homes in Castle Hill: What It Means Before You Build

Simple guide to BASIX and 7-star energy performance for Castle Hill new homes and major renovations before you build.

TL;DR BASIX Castle Hill requirements affect new homes and many major residential projects in NSW. BASIX looks at water, energy and thermal performance. Since the stronger NSW standards aligned with NCC 2022, energy comfort should be considered early in the design, especially orientation, glazing, insulation, shading, ventilation and materials. Introduction Energy efficiency is not just a compliance box. It affects how your home feels in summer, winter and everyday living. For Castle Hill homeowners, BASIX and 7-star performance should be discussed before the design is locked in. Late changes to glazing, insulation or shading can affect both cost and appearance. What BASIX Is in Plain English BASIX stands for Building Sustainability Index. It is a NSW planning requirement aimed at reducing …