FYI: This is a reference to the benefit principle in the Victoria Owners Corporation Act
49 Cost of repairs, maintenance or other works
(1) An owners corporation may recover as a debt the cost of repairs, maintenance or other works undertaken wholly or substantially for the benefit of one or some, but not all, of the lots affected by the owners corporation from the lot owners.
(2) The amount payable by the lot owners is to be calculated on the basis that the lot owner of the lot that benefits more pays more.
(3) The works referred to in this section may be to the common property or a lot.