How much does a BASIX Certificate cost?

The cost of a BASIX Certificate depends on your project type, the assessment method, and any additional services required. Most homeowners can expect to pay between $300 and $1,000.

Short answer

A BASIX Certificate typically costs between $300 and $1,000, depending on the size and complexity of the project.

Full answer

BASIX costs vary depending on the type of development and whether additional assessments are needed. Key factors include:

• The number of dwellings (e.g. apartments vs standalone homes)
• Whether a NatHERS thermal rating is required
• Project complexity or design revisions
• Urgency or turnaround time

Council lodgement of the certificate is free, but the professional service to prepare it (such as through Certified Energy) carries a fee.

Why this matters

Underquoting or skipping this step can delay approvals and increase the cost later. It is important to work with a qualified assessor to avoid hidden issues.

How Certified Energy can help

We offer fixed pricing for most BASIX Certificates with fast delivery. Our assessors also help you avoid unnecessary design changes that could increase cost.

Related regulations

• BASIX assessment guidelines
• Thermal rating standards (NatHERS or Deemed-to-Satisfy)
• NSW planning fee structure

Helpful resources

• What is a BASIX Certificate?
• When is a BASIX Certificate required?
• How do I lodge a BASIX Certificate?
• What does a BASIX assessment include?