# Housing Act 2004, Paragraph 5


(1) In addition to serving an improvement notice in accordance with any of paragraphs 1 to 4, the local housing authority must serve a copy of the notice on every other person who, to their knowledge—
(a) has a relevant interest in any specified premises, or
(b) is an occupier of any such premises.
(2) A “relevant interest” means an interest as freeholder, mortgagee or lessee.
(3) For the purposes of this paragraph a person has a relevant interest in any common parts of a building if he has a relevant interest in the building or part of the building concerned, or (in the case of external common parts) in the particular premises in which the common parts are comprised.
(4) The copies required to be served under sub-paragraph (1) must be served within the period of seven days beginning with the day on which the notice is served.

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Source: https://www.legislation.gov.uk/ukpga/2004/34/schedule/1/paragraph/5 (the official version)
Page: https://openlegislation.uk/housing-act-2004/schedule-1/paragraph-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.