In this Part adjoining owner includes (a) the owner of adjoining premises; and(b) the State Service Agency, council or other organisation responsible for the management of the adjoining premises; and(c) a person appointed by the Director of Building Control as agent for such an owner under section 78 ;adjoining premises means premises adjoining relevant premises;protection work notice means a notice under section 77 ;relevant premises means the premises where building work, plumbing work or demolition work is to be performed.