(1)This section shall apply whether or not a payment falls to be made in respect of an interest in a house under section 308 where a house is purchased at restricted value in pursuance of a compulsory purchase order made by virtue of section 88,120 or 121, or paragraph 5 of Schedule 8, or in pursuance of an order under paragraph 2(1) of Schedule 2 to the [1963 c. 51.] Land Compensation (Scotland) Act 1963, or has been vacated in pursuance of a demolition order or a closing order, and on the date of the making of the compulsory purchase or other order the house is occupied in whole or part as a private dwelling by a person who throughout the relevant period—
(a)holds an interest in the house, being an interest subject to a heritable security or charge, or
(b)is a party to an agreement to purchase the house by instalments.
(2)Where the provisions of subsection (1) apply in the case of any house, any party to the heritable security, charge or agreement in question may apply to the sheriff who, after giving to other parties an opportunity of being heard, may, if he thinks fit, make an order—
(a)in the case of a house which has been purchased compulsorily, discharging or modifying any outstanding liabilities of the person having an interest in the house, being liabilities arising by virtue of any bond or other obligation with respect to the debt secured by the heritable security or charge, or by virtue of the agreement, or
(b)in the case of a house vacated in pursuance of a demolition order, or closing order, discharging or modifying the terms of the heritable security, charge or agreeement,
and, in either case, either unconditionally or subject to such terms and conditions, including conditions with respect to the payment of money, as the sheriff may think just.
(3)In determining in any case what order, if any, to make under this section, the sheriff shall have regard to all the circumstances of the case, and in particular—
(a)in the case of a heritable security or charge—
(i)to whether the heritable creditor or person entitled to the benefit of the charge acted reasonably in advancing the principal sum on the terms of the heritable security or charge; and in relation to this sub-paragraph he shall be deemed to have acted unreasonably if, at the time when the heritable security or charge was created, he knew or ought to have known that in all the circumstances of the case the terms of the heritable security or charge did not afford sufficient security for the principal sum advanced, and
(ii)where the heritable security or charge secures a sum which represents all or any part of the purchase price payable for the interest, to whether the purchase price was excessive, or
(b)in the case of an agreement to purchase by instalments, to how far the amount already paid by way of principal, or, where the house has been purchased compulsorily, the aggregate of that amount and so much, if any, of the compensation in respect of compulsory purchase as falls to be paid to the seller, represents a fair price for the purchase.
(4)In this section "the relevant period" means the period from the date of the making of the compulsory purchase or other order to—
(a)in the case of a compulsory purchase order, the date of service of notice to treat (or deemed service of notice to treat) for purchase of the house or, if the purchase is effected without service of notice to treat, the date of completion of that purchase, and
(b)in the case of any other order, the date of vacation of the house in pursuance of the order or of an order deemed to have been made and served in the terms of the next following subsection;
or, if the person referred to in subsection (1) dies before the date specified in paragraph (a) or (b), to the date of death.
(5)For the purposes of this section, a house which might have been the subject of a demolition order but which has, without the making of such an order, been vacated and demolished in pursuance of an undertaking for its demolition given to the local authority, shall be deemed to have been vacated in pursuance of a demolition order made and served at the date when the undertaking was given.