I'm not an expert in this field but is Article 5 not relevant?
Namely,
"(3) Any duty imposed by articles 8 to 22 or by regulations made under article 24 on the responsible person in respect of premises shall also be imposed on every person, other than the responsible person referred to in paragraphs (1) and (2), who has, to any extent, control of those
premises so far as the requirements relate to matters within his control.
"(4) Where a person has, by virtue of any contract or tenancy, an obligation of any extent in relation to—
(a) the maintenance or repair of any premises, including anything in or on premises; or
(b) the safety of any premises,
that person is to be treated, for the purposes of paragraph (3), as being a person who has control
of the premises to the extent that his obligation so extends."
Stu