Any document required or authorised by virtue of this Act to be served on any person may be served—
and any document required or authorised by this Act to be served on the Authority or the Corporation may be served by leaving it at, or sending it by post to, any office of the Authority or, as the case may be, of the Corporation.
For the purposes of this section and section 7 of the Interpretation Act 1978 (which relates to the service of documents by post) in its application to this section, the proper address of any person on whom a document is to be served shall be his last known address, except that—
and for the purposes of this subsection the principal office of a company registered outside the United Kingdom, or of a partnership carrying on business outside the United Kingdom, is its principal office within the United Kingdom.
If a person to be served by virtue of this Act with any document by another has specified to that other an address within the United Kingdom, other than his proper address (as determined in accordance with subsection (2) above), as one at which he or someone on his behalf will accept documents of the same description as that document, that address shall also be treated as a proper address of that person for the purposes of this section and for the purposes of the said section 7 in its application to this section.
References in this section to the service of a document on any person include references to the giving, making or sending to that person of any notice, direction, claim or request which is in writing.
This section shall not apply to any document in relation to the service of which provision is made by rules of court.