Felix – It appears from your comment that the renovations have been deemed by your owners corporation to be “minor renovations” under the new definitions in the latest legislation. The new SSMA 2015 [s110(5)] should allay your concerns with regard to any damage of the common property as a result of the renovations. In summary it states that an owner must ensure that any damage caused to any part of the common property by carrying out minor renovations is repaired and the minor renovations and any repairs are carried out in a competent and proper manner.
Approval under section 110 cannot be unreasonably withheld, and can be granted subject to reasonable conditions. If your owners corporation is particularly anxious then your owners corporation can approve the renovation conditional upon the owner signing an indemnity form covering repairs and damages to the common property.