26.—(1) In assessing the compensation payable to any person on the acquisition from that person of any land under this Order, the tribunal must not take into account—
(a)any interest in land; or
(b)any enhancement of the value of any interest in land by reason of any building erected, works executed or improvement or alteration made on relevant land,
if the tribunal is satisfied that the creation of the interest, the erection of the building, the execution of the works or the making of the improvement or alteration was not reasonably necessary and was undertaken with a view to obtaining compensation or increased compensation.
(2) In paragraph (1) “relevant land” means the land acquired from the person concerned or any other land with which that person is, or was at the time when the building was erected, the works executed or the improvement or alteration made, directly or indirectly concerned.