There are a number of steps to subdividing land. Initially you need to determine whether you can subdivide and if so, lodge a development application.
Once you have obtained development consent for your proposal, you need to read the consent and determine whether there are any conditions of consent that require you to do physical works, organise certificates from energy suppliers and telecommunication suppliers or pay contributions to Council.
The NSW Land Registry Services will not register your plan without a Subdivision Certificate.
Once all of the conditions of consent have been finalised you will need to lodge a subdivision certificate application with Council that includes linen plans and evidence of you finalising your consent. Council will assess the subdivision certificate application and issue the Subdivision Certificate and the signed linen plans. Your solicitor or surveyor will then lodge these plans with the NSW Land Registry Services Office and they are generally registered in around 6-8 weeks.