As an Australian student with a UK citizenship, can I study in the UK? Disclaimer: I wasn't sure where to post this but I thought this was as good a place as any so sorry if this is the wrong place.

I am a high school student in Queensland, Australia studying for a Queensland Certificate of Education. I've lived in Australia a large part of my life. However, I was born in the UK and have dual citizenship (AUS and UK). 

Am I able to apply to study at a university in the UK and (if I can) am I an international student?
I did some looking around here, but it's difficult to find a specific solid answer because this is going to vary between the universities, to an extent. But what I've found points to this:

Even though you are a British citizen, you have not been 'ordinarily resident' in the UK, which means you would be considered an international student. It would appear that international status is determined by citizenship AND residence, a bit like US universities. However, universities may be hesitant to respond to your queries about this either way until you were offered a place to study.

Obviously you would not need a visa, but I'd imagine what you're worried about is whether you would have to pay international fees, which are very high. 

I'm going to openly admit that one of my sources is Wikipedia, so take it with a grain of salt. You could potentially qualify as a 'home' student in spite of living in another country if you were from:


  Anguilla
  Aruba
  Bermuda
  British Antarctic Territory
  British Indian Ocean Territory 
  British Virgin Islands
  Cayman Islands
  Falkland Islands
  Faroe Islands
  French Polynesia
  French Southern and Antarctic Lands 
  Greenland
  Montserrat
  New Caledonia
  Saint Pierre and Miquelon
  Turks and Caicos Islands
  Wallis and Futuna


However this is not the case for you, as you are in Australia.

Here is the list of requirements for British citizens to be considered a 'home student':


  Be free from any immigration restrictions (e.g. British citizenship,
  exercising EU Freedom of Movement Rights, indefinite leave to
  enter/remain, right of abode, free from immigration control (as a
  diplomat or member of air crew))
  
  Be ordinarily resident in the United Kingdom
  
  Have been ordinarily resident in the United Kingdom, Channel Islands
  and/or Isle of Man for the whole period of the three years directly
  preceding the first day of the academic course
  
  The main purpose for the three years' residence in the UK and Islands
  must not have been to receive full-time education during any part of
  it, unless the student is a European Union citizen (but not a British
  citizen) and immediately prior to the three-year period was ordinarily
  resident in the European Economic Area, Switzerland or qualifying
  overseas territories (see below).


You have not been ordinarily resident in the UK, ergo you would be an international student. 

If you want to confirm this, you should get into contact with the international offices at your universities of interest. Only they can answer definitively. 

Sources:

Wikipedia, use caution

UKCISA

UKCISA Fee Status Assessment

Complete University Guide