Generally, no. Existing sand typically will not have a lot (if any) nutrient in it, and soils in Western Australia along the Swan Coastal Plain (Perth and Southwest) are natural non-wetting sandy soils and have trouble absorbing water. Without adequate nutrients for the turf to draw from, it will not establish correctly or thrive long-term.
For the recommended soil preparation: https://greenacresturfgroup.com.au/lawn-installation/diy-lawn-installation/