Article 11 Increasing rateable values
This article applies to any class of hereditaments in relation to which the rateable value in the year beginning on 1st April 1990 is determined as provided in paragraph (a) of article 9.
The rateable value in the year beginning on 1st April 1991 of any class of hereditaments to which this article applies shall be determined in accordance with paragraph (3).
For the purposes of paragraph (2), where in relation to a class of hereditaments a calculation in respect of that year according to formula 1, that is to say—
produces an amount less than that produced by a calculation in accordance with the standard formula, the rateable value of that class of hereditaments in that year shall be the amount calculated in accordance with formula 1; and in any other case that rateable value shall be the amount calculated in accordance with the standard formula.