Sch 15 para 21
Where a notice of objection to severance is served in respect of a person’s interest in any land (in this Part referred to as “ the land proposed to be severed ”), and is so served within the time allowed in accordance with paragraph 20(2), then, notwithstanding anything in paragraph 7— (a) that interest shall not vest in the acquiring authority, and (b) if he is entitled to possession of that land, the acquiring authority shall not be entitled to enter upon or take possession of it, until the notice has been disposed of in accordance with the following provisions of this Schedule.