(1)The notice required by section 27(2)(b) may be given—
(a)by delivering it to the occupier of the dwelling;
(b)by leaving it for that person at the dwelling; or
(c)by sending it by post to that person at the dwelling.
(2)If the name or address of the person to whom notice under section 27(2)(b) is required to be given cannot be ascertained after reasonable inquiry, the notice may be given—
(a)by leaving it in the hands of a person who is, or appears to be, resident in the dwelling; or
(b)by leaving it fixed to a conspicuous part of the dwelling.