Austman said – I’m in Victoria but it might work in NSW too. In Victoria, the committee alone can make a decision to improve/alter common property (within limits).
Just to clarify for Beth…… NO it doesn’t work that way in NSW unless the Owners Corporation (O/C) has already put a Registered Special By-Law (SBL) in place that permits specific types improvements or alterations to be made to its Common Property, where if Owners then seek a formal consent for improvements or alterations of that type, its Executive Committee can grant that on behalf of the O/C in strict accordance with the provisions of that SBL.