Once the relevant technical assessments and designs are completed, the applications for planning approval ('development approval' or DA) and environmental approval are submitted. Depending on the location, some projects need to obtain federal environmental under the Environmental Protection and Biodiversity Conservation Act ('EPBC approval') as well as approval for vegetation clearing from the relevant state agencies.
An important aspect of the development approval phase is to engage with the local council, neighbours and suppliers to consult on how the benefits of the project will be shared with the local community, and strategies the project will adopt to manage the environmental impacts, traffic impacts and other disruptions that will occur particularly during the construction phase of the project.
The approval process can take around six months, and is still not a guarantee that the project will go ahead.