12Notices, etc.
(1)Any notice for the purposes of this Act shall be in writing, and, except as otherwise provided in paragraph 5 of the First Schedule to this Act, any notice or other document required or authorised by or under this Act to be served on any person shall be duly served if it is delivered to him or left at his proper address or sent to him by post.
(2)Any such notice or other document required or authorised to be served on the authorised persons under an improvement order shall, if an improvement committee has been established under such order, be duly served if it is served on the secretary of that committee, and any such notice or other document required or authorised to be served on a local authority, a public undertaker or an incorporated company or body shall be duly served if it is served on the clerk or secretary of such authority, undertaker, company or body.
(3)For the purposes of this section and section twenty-six of the Interpretation Act, 1889, the proper address of any person on whom any such notice or other document is to be served shall, in the case of the clerk or secretary of any local authority, public undertaker, or incorporated company or body, be that of the registered or principal office of such authority, undertaker, company or body, and in any other case be the last known address of the person in question.
(4)Where any notice or other document is to be served on a person as being the person having any interest in land and it is not practicable after reasonable inquiry to ascertain his name or address, the notice or document may be served by addressing it to him by the description of the person having that interest in the land (naming it) and delivering the notice or document to some responsible person on the land or by affixing it, or a copy of it, to some conspicuous object on the land.