The standards specified for that development are that the development--
(a) must not result in a change of classification of the building under the Act or the Building Code of Australia , and
(b) must not result in any additional separate dwelling, and
(c) must not result in the creation of an additional floor within a dwelling, and
(d) must not result in a change in the number of bedrooms in the building, unless the building is a class 1a building.