Certain work prohibited

No apartment owner shall do any work which would jeopardize the soundness or safety of the property, reduce the value thereof or impair any easement or hereditament nor may any apartment owner add any material structure or excavate any additional basement or cellar without in every such case the unanimous consent of all the other apartment owners being first obtained. (1) areas and facilities if duly authorised by the Association of Apartment Owners, the Manager or Board of Managers in accordance with this Act, the Declaration or bye-laws, shall be deemed to be performed or furnished with the express consent of each apartment owner and shall be the basis for a charge or encumbrance under the Act aforesaid against each of the apartments and shall be subject to the provisions of sub-section (2) .

(2) In the event of a charge or any encumbrance against two or more apartments becoming effective, the apartment owners of the separate apartments may remove their apartments and the percentage of undivided interest in the common areas and facilities appurtenant to such apartments from the charge or encumbrance by payment of the fractional or proportional amounts attributable to each of the apartments affected. Such individual payment shall be computed by reference to the percentages appearing in the Declaration. Subsequent to any such payment, discharge or other satisfaction, the apartment and the percentage of undivided interest in the common areas and facilities appurtenant thereto shall thereafter be free and clear of the charge or encumbrance so paid, satisfied or discharged. Such partial payments, satisfaction or discharge shall not prevent the person having a charge or any other encumbrance from proceeding to enforce his rights against any apartment and the percentage of undivided interest in the common areas and facilities appurtenant thereto not so paid, satisfied or discharged.