Channel Tunnel Act 1987

15 (1) If in the construction of any of the scheduled works or any works in connection with any such work ("the work in question") it becomes necessary to do so, the appropriate authority may, and if required by the owner or lessee shall, underpin or otherwise strengthen any building within 35 metres of the work in question in accordance with the provisions of this paragraph.

(2) Except in case of emergency, the appropriate authority shall give to the owner, lessee or occupier of a building, or the owner or lessee of a building shall give to the appropriate authority, at least 28 days' notice in writing of the intention or (as the case may be) requirement, to underpin or otherwise strengthen that building under this paragraph, and if within 21 days of the giving of such notice the owner, lessee or occupier or (as the case may be) the appropriate authority give a counter-notice in writing disputing the necessity of the underpinning or strengthening, the question of necessity shall be settled by arbitration.

(3) The appropriate authority may, at any time after the underpinning or strengthening of any building under the foregoing provisions of this paragraph is completed and before the expiration of a period of five years from the bringing into use of the work in question, enter upon and survey the building and, after complying with the foregoing provisions of this paragraph, carry out such further underpinning or strengthening of the building as they may deem necessary or expedient or, if the owner, lessee or occupier of the building disputes the necessity or expediency, as may be settled by arbitration.

(4) Where any question of necessity or expediency is referred to arbitration under the foregoing provisions of this paragraph and the arbitrator, after inspecting the building, decides that the underpinning or strengthening is necessary or (as the case may be) that the further underpinning or strengthening is necessary or expedient, the arbitrator may, and if so required by the owner, lessee or occupier shall, prescribe the manner in which the underpinning or strengthening is to be carried out and the appropriate authority shall underpin or strengthen the building accordingly.

(5) For the purpose of determining how to exercise their powers and duties under this paragraph the appropriate authority may at any reasonable time enter and survey any building within 3 5 metres of any of their scheduled works.

(6) The appropriate authority shall pay compensation to the owner, lessee and occupier of every building underpinned or strengthened in pursuance of the powers conferred by this paragraph for any damage which they may suffer by reason of the exercise of those powers.

(7) Nothing in this paragraph shall affect liability to compensate under section 6 of the [1845 c. 20.] Railways Clauses Consolidation Act 1845, as incorporated with this Act, or section 10(2) of the [1965 c. 56.] Compulsory Purchase Act 1965, as applied by section 37 of this Act, or under any other enactment, except so far as compensation is payable under sub-paragraph (6) above.

(8) Any dispute as to a person's entitlement to compensation under this paragraph, or as to the amount of the compensation, shall be determined under and in accordance with Part I of the [1961 c. 33.] Land Compensation Act 1961.

(9) Section 30 of the Compulsory Purchase Act 1965 shall apply to the service of notices under this paragraph with any necessary modifications.

(10) In this paragraph "building" includes any structure and, in the case of a work under the surface of the ground, reference to a building within 35 metres of that work includes reference to any building within 35 metres of the point on the surface below which the work is situated