Powers to acquire subsoil only
21.—(1) The Company may compulsorily acquire so much of, or such rights in, the subsoil of the land within the permanent limits as may be required for any purpose for which that land may be acquired instead of acquiring the whole of the land.
(2) Where the Company acquires any part of, or rights in, the subsoil of land under paragraph (1) the Company shall not be required to acquire an interest in any other part of the land.
(3) Paragraph (2) shall not prevent article 28 (acquisition of part of certain properties) from applying where the Company acquires a cellar, vault, arch or other construction forming part of a house, building or manufactory.