21.—(1) TfL may acquire compulsorily, subject to paragraph (2), so much of the land shown on the deposited plans within the limits of deviation and of land to be acquired or used and described in the book of reference as may be required for the purposes of the authorised works and may use any land so acquired for those purposes or for any other purposes that are ancillary to its undertaking.
(2) In the case of land specified in Schedule 6 (land in respect of which acquisition is limited as regards subsoil) TfL’s power of compulsory acquisition under paragraph (1) is limited to the acquisition of land no more than 10 metres beneath the level of the surface of the land and all land above that depth.
(3) This article is subject to article 26 (new rights only to be acquired under or in certain lands).