How Much Does a NatHERS Assessment Cost in NSW?
NatHERS assessment fees in NSW depend on dwelling type, complexity and turnaround. Here is what drives the price and how to keep it down.
One of the first questions we hear is simple: what does a NatHERS assessment cost? The honest answer is that it depends on the project, but the range is more predictable than most people expect. Here is how pricing works and where you can save.
What drives the fee
- Dwelling type. A single home is straightforward. Dual occupancies, townhouses and apartments take more modelling time.
- Design complexity. Large amounts of glazing, unusual shapes and multiple storeys add hours.
- Turnaround. Standard timelines are cheaper than express. A 24-hour service carries a premium.
- Revisions. A clean set of plans keeps the fee tight. Late design changes can trigger remodelling.
Standard pricing in plain terms
For a typical single dwelling in NSW, a combined NatHERS and BASIX package is usually a flat fee. Multi-dwelling and mixed-use projects are quoted per project because the modelling effort scales with the number of units. The most cost-effective option for owners is almost always to bundle NatHERS and BASIX with one provider, which removes double-handling.
The hidden cost most people miss
The assessment fee is rarely the biggest number. The real cost lives in the build commitments the assessment recommends. A design that needs premium glazing on every face is far more expensive to build than one where orientation and shading were optimised early. That is why involving an assessor at concept stage usually pays for itself many times over.
How to keep your assessment affordable
- Send complete, scaled plans with elevations and a window schedule.
- Ask for advice before your design is locked in, not after.
- Bundle NatHERS and BASIX together.
- Avoid express turnaround unless your lodgement genuinely needs it.
Frequently asked questions
Is the cheapest quote the best value? Not always. A good assessor saves you far more in build costs than they charge, by steering you to the levers that move the rating for the least money.
How fast can I get it? Our standard turnaround is 3 to 4 business days, with 24-hour express available.
Want an exact figure for your project? Request a fixed-fee quote and we will price it from your plans.
BASIX & NatHERS specialists, a division of Contrive Consultants. We help NSW homeowners and builders achieve energy-efficient, compliant homes.