Building Townhouses or Multi-Unit?

Whether you’re developing a townhouse complex or a multi-storey residential building, a BASIX/NatHERS Certificate is required before submitting your Development Application. At Green Certify, we provide fast, accurate and council-ready assessments specifically tailored for townhouse and multi-unit projects of any size.

We work closely with builders, developers and architects to ensure every dwelling complies with government sustainability standards, including energy efficiency, thermal performance and water usage.

Why a BASIX/NatHERS Certificate is required?

Under NSW planning legislation, townhouses are classified as residential developments and must meet BASIX (Building Sustainability Index) requirements. Each unit is assessed to ensure it minimises environmental impact through optimised design, efficient materials, energy and water saving measures.

For multi-unit developments, every unit is evaluated for energy efficiency, thermal comfort and water usage performance. We also ensure that shared infrastructure—such as hot water systems, lighting and HVAC—meets overall site sustainability requirements.

Whether your project involves townhouses (freestanding, attached or strata titled) or apartment units (strata titled or within a larger residential complex), our team delivers tailored assessments to guarantee full compliance. This helps keep your project on the track while meeting all the sustainability obligations.