The financial contribution each owner is obligated to pay to the Owners Corporation for the maintenance of a building is not shared equally.
Each owners contribution is determined by the value of their Units of Entitlement. This is a number given to each apartment, which should represent the value of the apartment at the time the strata plan was registered.
The higher the value of the apartment, the higher the value of the Units of Entitlement. This number is also the value of votes, should a matter at a general meeting be put to a 'poll' vote. That is, the vote is weighted, as opposed to one vote per lot.
Calculation of Units of Entitlement have improved, with legislation requiring a greater level of scrutiny over time. It's important to remember that all sorts of considerations have been included in determining the UE, including size of an apartment, aspect, location a building, location of car park etc.