Support hub

How to submit a standalone referral request to a Government agency

View this document for step-by-step guidance on how to submit a referral request to a Government agency for an application under appeal with the Land and Environment Court, or if a post-consent referral is required.

How to submit a development application to council

A development application (DA) must be submitted through the NSW Planning Portal. View this document for step-by-step guidance on how to create and submit a development application on the NSW Planning Portal.

How to submit a complying development certificate application for a pattern book design

View this document for step-by-step guidance on how to create and submit a complying development certificate application on the NSW Planning Portal, using a pattern book design.

How to submit a complying development certificate application

A complying development certificate (CDC) application must be submitted through the NSW Planning Portal. View this document for step-by-step guidance on how to create and submit a complying development certificate application on the NSW Planning Portal.

How to use the edit functionality in the development application service

Step-by-step guidance on how to edit applicant or council entered details in the Online DA service.

How to validate a BASIX certificate marked as review required

When a BASIX certificate input on a DA or CDC application has a different address, the system will identify it as 'Review required'. This guide outlines the process council or certifiers will use to validate the BASIX certificate.

What do the BASIX certificate reference number validation messages mean?

When an applicant enters a BASIX reference number within a development application (DA) and complying development certificate (CDC) application, the reference number is validated against the BASIX tool. There are three types of messages:

Reference number is valid (the BASIX certificate will be automatically uploaded onto the application)

Reference number requires review (the council / certifier will need to review the BASIX certificate/s to validate them)

Reference number is not valid.

Please view the information sheet to view the messages and what you will need to do when you see one. 

This change was introduced on 31 July 2026, to strengthen the compliance and security requirements for BASIX Certificates submitted as part of a development application or complying development certificate application through the NSW Planning Portal.

How to request a Development Coordination Authority (DCA) referral check

Learn how to request a Development Coordination Authority (DCA) referral check through the NSW Planning Portal. This course is for council users.

How to upload documents after determination of a development application

Learn how to upload documents after the determination of a development application. This functionality can only be used under certain conditions. This course is for council users.

How to perform a preliminary review and assessment of a planning proposal

Learn how to complete the initial completeness check, capture fee payment and undertake a preliminary review of a proponent-initiated planning proposal. This course if for council users.