When buying or selling property, due diligence reports are crucial and include information on permits, final inspections, and current statements under the Building Regulations 2018, along with details on flood zones, termite risks, bushfire-prone areas, and snowfalls. Additionally, planning information, legal points of discharge for stormwater, and sewer connection details must be obtained. The process involves submitting an application form, relevant documents (including architectural drawings if needed), and fees to the Council, who will then review and provide the necessary approvals and information.