You can check it from the information given by the developer.
I bought Ocean Shores, phase 1.
It is because Phase 1 is constructed by the best one in those 3間建築公司. And phase 2 is constructed by another 建築公司 (chinese =>'golden door').
They use 唔同材料 (phase 1 =>almost all imported from Eurpoe ). I don't know 手工同定唔同 as I am not a CF.
For example, the life is 唔同 in phase 1 and 2.