Owner has altered Common Property without permission

This owner is an architect (retired) who is making very expensive renovations (about $200,000) to the unit his wife inherited in our strata.  He received permission in 2009 to do a number of things, but now the work is in progress and he has changed a number of things that were not approved:

1. taking out a brick column between 2 sliding doors as access to the balcony and extended that opening to include another window at the side (he did get permission to enclose a part of the balcony)

2. had plans to extend the balcony floor slab to meet the edge of the building (about 500mm) – no permission

3. has put his hot water tank up in the ceiling cavity of the laundry – no permission (and not in his plans)

4. has removed part of the front entrance (about 500mm) to enlarge the door area so he could bring in a large ‘fridge.  The original door has been taken to the tip – no permission and not in his plans

What can we do with this man?  He says he showed the plans to the Committee before building commenced – not true.  He rushed the plans to STM offices to get them stamped before going to Council.