The maximum fee payable for a BASIX certificate depends on the type of development, as outlined below:
•    Single dwelling: $50
•    Multi-dwelling: $80 for the first two dwellings + $35 for each additional dwelling
•    Residential flat building:  variable - depends on number of units
•    Alteration and additions: $25 for each dwelling.

There is also a $5 NSW Planning Portal fee for each BASIX certificate.

To estimate the fee payable, you can download the BASIX offline-fee calculator.

Merchant fee from the payment option selected will be added to the actual fee payable.

Frequently asked question BASIX BASIX (BSX) Applicant Proponent Developer