Unfortunately the listing doesn't have an address so not available on onthehouse. While the listing is an older listing, when ordered by listing age, I can't see when the listing was created.
You could always ask the selling agent how long it's been listed but whether you should believe them or not is another story particularly if it's been up there awhile and not selling.
Initially I am interested to see how fast properties in a suburb are moving and www.refindhouseprices.com was helpful here, thanks for the suggestion - not as many listing as RE.com.au but gave a good indication as a starting point.
I'm also following up with the REAs for a few of the older listings to get some info about why they aren't moving. From refindhouseprices.com it seems that properties are moving well so could be time for some ground work.