Personally I don't beleive you need to go to Uni or Tafe to become a property developer. I did 3 years of a Town Planning degree and learnt nothing even related to what I am doing now (renos and subdivisions). I learnt the most from my own research and actually taking the plunge and doing them first hand. There will be some courses that will help – like building or project managing, but I don't think it is a must to do them.