Hey there, @klawrence. Thanks for posting on YesCrowd and also for your question.
I've had a look at our site plans around the Pickering Brook Sports Club in Pickering Brook, WA 6076 and was unable to see any information around this. Were you told Optus had plans to provide coverage using the tower you're referring to?
Having a look at RFNSA's (Radio Frequency National Site Archive) website, the tower I can see located near Pickering Brook Sports Club seems to be a Telstra tower.
At this stage, you can only check for current coverage on our Coverage Map. Unfortunately, we don't have a feature available to customers to search for forecasted coverage but I can pass this as feedback to the relevant teams as I can understand how useful this information could be to potential as well as existing customers.