Airparks in Perth Australia ?

Are there any airparks in Perth? Maybe will move there and am wondering whats available. Cant seem to find any links via google.

I'm not sure if the concept exists in Perth.

3 Main GA airfields in Perth are.

Jandakot - Main GA airport.
Serpentine - Sport aircraft airfield - lots of home builts
Murrayfield - satellite airfield for RACWA - handfull of aircraft.

In addition there are a few private grass strips to the south of Jandakot in the Serpentine area. It may be viable to operate from a hobby farm type property in this area.