14Effect of certain actual or prospective development of adjacent land in same ownership
(1)Subject to section 15 of this Act, where, on the date of service of the notice to treat, the person entitled to the relevant interest is also entitled in the same capacity to an interest in other land contiguous or adjacent to the relevant land, there shall be deducted from the amount of the compensation which would be payable apart from this section the amount (if any) of such an increase in the value of the interest in that other land as is mentioned in subsection (2) of this section.
(2)The said increase is such as, in the circumstances described in any of the paragraphs in the first column of Schedule l to this Act, is attributable to the carrying out, or the prospect, of so much of the relevant development as would not have been likely to be carried out if the conditions mentioned in paragraphs (a) and (b) of section 13 (1) of this Act had been satisfied; and the relevant development for the purposes of this subsection is, in relation to the circumstances described in any of the said paragraphs, that mentioned in relation thereto in the second column of the said Schedule 1, but modified, as respects the prospect of any development, by the omission of the words " other than the relevant land", wherever they occur.
(3)Nothing in this section shall affect the amount which is to be taken as the amount of the compensation for the purposes of section 20 of this Act (which relates to the consideration payable for the discharge of land from feu-duty and incumbrances).