The key difference is that a Development Application (DA) is assessed by the local council with more flexibility but takes longer, while a Complying Development Certificate (CDC) is approved faster by a certifier or council against pre-set statewide criteria with stricter adherence to guidelines Understanding the Basics A Development Application (DA) is a formal request submitted to the local council for permission to carry out a development project. It is used for more complex developments or those that do not comply with pre-determined state-wide standards. On the other hand, a Complying Development Certificate (CDC) is a streamlined process designed for straightforward, smaller-scale projects that meet specific state-wide planning criteria. Approval Process DA Approval Process - DAs are assessed by the local council, which often seeks input from neighbours and considers a broad range of factors, including the project’s impact on the environment an...