Hey @Riseryan, feel free to send me the address in a private so I can check it out.
Optus HFC isn't available for business properties so it's unlikely the cable installed there is apart of this network, but I'll double check the area and see what's possible.
There is Optus HFC on that street, but only the residential properties further up are eligible. From around number 80 onward isn't possible. Checking Google Maps they all appear to be business properties.
We would only be able to offer an ADSL service until NBN rolls out which looks to be around Jul-Dec 2019.
If there is a cable infrastructure there, it must be via another provider I'm afraid.
So apparently its pretty common to wire up building with fibre now days. However that is really only future proofing in some cases and its still being fed by ADSL on the street.
NBN system says HFC this time next year but another system suggested FTTB (Fibre to the Building) guess you'll find out in time.
No idea of your usage but you could enquire at having fibre laid to the place now.
But these cost $100's a month (assuming they can connect to you)
There is Optus fibre in that area (Optus Business) from my "adventures" in that area quite some time ago.
Suprised it has not been offered - though it can be expensive depending on requirements.