So essentially...the building as it is now, is illegal and doesn't meet the authorities criteria.
To even mention demolition now at this stage....where 80% on the units have been sold, is ludicrous....but that's how this country works....apply for permit (pay to get the approval)....build the building, (pay again at inspection times)....get threatened by the authorities with demolition as the building is illegal.....then..most likely pay some more!