(a) Whenever a building or other structure on one (1) side of a party wall is removed, existing party walls shall be maintained in a safe, weatherproof condition by and at the expense of the person causing the building or other structure to be removed. Temporary or permanent bracing shall be provided, as necessary for maintaining the stability of such party wall or adjoining building, whenever such stability is endangered by the removal of a building or other structure, or part thereof. Open beam holes in party walls exposed by removal of a building or other structure, or part thereof, shall be closed with approved masonry by and at the expense of the person causing them to be exposed.
(b) Whenever any building or other structure is to be carried above the roof of an adjoining building, protection for skylights, roofs, and roof outlets of such adjoining building shall be provided by and at the expense of the person constructing or causing such building or other structure to be carried above the roof of the adjoining building, provided he or she is granted permission to enter the adjoining premises for that purpose.
(c) No accumulation of water which may undermine foundations or enter the basement or cellar of adjoining property, or result in other injury to adjoining property, shall be permitted in any excavation.