Sch SECOND para 2
(1) The payment shall be of an amount equal either— (a) to the amount by which the aggregate expenditure which is shown to the satisfaction of the local authority to have been incurred in maintaining the house during the five years immediately before the date on which the relevant order was made exceeds an amount equal to one and one-quarter times the rateable value of the house, or (b) to the rateable value of the house multiplied by the appropriate multiplier, whichever is the greater: Provided that the payment shall not in any case exceed the difference between the full value of the house (that is to say the amount which would have been payable as compensation if it had been purchased compulsorily but not as being unfit for human habitation) and the site value thereof (that is to say the amount which is payable as compensation by virtue of its being purchased compulsorily as being unfit for human habitation, or which would have been so payable if it had been so purchased), and any question as to such value shall be determined, in default of agreement, as if it had been a question of disputed compensation arising on such a purchase. (2) No payment shall be made under this paragraph to any person in respect of a house where a payment falls to be made in respect of an interest of that person in that house under Part II of this Schedule : Provided that where the payment under Part II of this Schedule falls to be made in relation to part only of the house, this sub-paragraph shall not apply to so much of any amount which has been paid or which would otherwise be payable under this Part of this Schedule as may reasonably be attributed to the remainder of the house.