What mirage 3 said ....in spades. He's talking about Bankstown but you can choose which GAAP you want to check for impact.
I use Archerfield occasionally and I am wondering how you provide separation IFR to IFR or IFR to VFR when your airspace is only 1500' high and approximately 3nm radius??? One IFR movement at a time perhaps?????
Wiser minds might be able to shed some light but I remain sceptical as to whether this is a good thing.