Jerrybee, IMHO The Valley is the Chinatown that the Brisbane City Council kinda 'forced' upon Brisbane, it never really took off as a genuine place of interest for Chinese and indeed broader pan-Asian communities, until fairly recently. It'll be interesting to see what kinds of buyers flock to the OTP stock in The Valley/Chinatown/surrounds. Worth keeping an eye on.
I'd argue that Sunnybank is more the 'unofficial' Chinatown of Brisbane. School catchment zones are popular here; a substantial established Chinese community already; good transport links; and lots of houses on good size blocks. These are all big desireables on some Chinese investor checklists.
As to the postcodes that I think might have the big growth, well, I'm no economist nor do I claim to be an expert on SEQ, but i have a couple of thoughrs for geberal areas that might do very well.
IMHO only - based on a few pieces of digital research, ABS data, my on the ground DD, perusing the numbers sections of API over the past 12 months, and my buying experience to date in SEQ - it might be worth doing your own due diligence on the following areas:
Brisbane houses: Coorparoo and surrounds. Everton Park/Arana Hills and surrounds (watch for termites though!)
Brisbane units/TH's: Established stock in Mount Gravatt areas/Holland Park. Also worth looking around Boondall/Zillmere in the north. Been dormant but has good underlying principles, and most of the vacant plots have been recently developed or are about to. Whilst this has added stock to market which ordinarily would see prices flatten or go backwards, all the while a lot of what was vacant land in these areas has been developed, as have knock-down shacks replaced by TH/unit blocks. But demand is keeping pace as vacancy rates stay pretty reasonable. What I'm saying is... Demand is mopping up excess supply and little empty land is left to develop. Good things happen to areas such as this, when this trajectory gets locked and loaded.
Again these are just my thoughts and areas I'm looking at - doesn't mean I've invested in these OR that I will - I just believe these areas will see solid 12-month growth, possibly in line with some Sydney/Melbourne suburbs.