The BASIX report contains similar information to the BASIX certificate. However, the BASIX certificate is the legal document.
There is no fee payable to obtain a BASIX report, it is for information purposes only. It is a useful document to show to your builder, client, or architect to see whether intended commitments are suitable before generating a BASIX certificate.
Frequently asked question BASIX BASIX (BSX) Applicant Proponent Developer