The proposal is to operate a regional airport at the Four Mile Hill site.

During the assessment of an expansion to the Busselton Regional Aerodrome, the proposal was changed under s.43A of the Environmental Protection Act 1986 to remove the runway extension, widening and strengthening component. The details of the existing runway are defined in Schedule 1 of Ministerial Statement 901 for this proposal and, as such, a section 45C change to Ministerial Statement 901 has been approved for the construction elements relating to the extension, widening and strengthening of the runway.