Costs vary according to the type, size and complexity of your project, but it helps to understand the drivers so you can budget effectively. At Evergreen Energy Consultants, we provide clear, upfront pricing and fast turnaround across NSW.

Typical cost drivers

• Project size and complexity – larger homes, dual occupancies and multi‑unit developments require more modelling and documentation.
• Glazing and envelope complexity – extensive or high‑spec glazing, raked ceilings, cathedral roofs or high thermal mass can increase analysis time.
• Number of dwellings – for apartments or townhouses, each dwelling must comply, which affects scope.
• Revisions and options – if multiple design iterations are assessed, that adds time.
• Section J or JV3 – for commercial or mixed‑use projects, additional modelling may be needed.

What you get for your fee

1. A compliant BASIX Certificate or NatHERS report ready for DA/CDC submission.
2. Practical advice on hitting targets cost‑effectively.
3. Clear documentation for your builder and certifier.
4. Quick responses and typical three‑business‑day turnaround once information is complete.

Budget ranges (guide only)

While every project is quoted on scope, many single dwellings fall within a few hundred dollars per assessment, with dual occupancies and multi‑unit work priced accordingly. Alterations and additions may be eligible for flat‑fee arrangements depending on scope.
For precise pricing, send plans for a same‑day quote.

How to reduce your costs

1. Engage early so simple design tweaks avoid rework later.
2. Provide complete, up‑to‑date plans and schedules.
3. Consider targeted upgrades (e.g., improve specific windows) rather than blanket changes everywhere.

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Written by Evergreen Energy Consultants — accredited BASIX and NatHERS assessors providing residential energy assessments across NSW.