1(1)The advance shall be repaid with interest within such period not exceeding 30 years as may be agreed upon.E+W
(2)The rate of interest is per cent, in excess of the rate of interest which, one month before the date on which the terms of the advance were settled, was the rate fixed by the Treasury in respect of loans to local authorities for the purposes of Part V of the M1Housing Act 1957 (provision of housing), as follows—
(a)where the time referred to is before 27th February 1964, the rate so fixed under section 1 of the M2Public Works Loans Act 1897;
(b)where the M3time referred to is on or after 27th February 1964 and before 1st April 1968, the rate so fixed under section 2 of the Public Works Loans Act 1964 in respect of loans made on the security of local rates, or, where there was more than one rate so fixed, such of those rates as the Treasury have directed in that behalf under that section;
(c)where the M4time referred to is on or after 1st April 1968, the rate determined under section 6(2) of the National Loans Act 1968 in respect of local loans of that class made on the security of local rates, subject to any relevant direction given by the Treasury under that subsection.
(3)The repayment may be made either by equal instalments of principal or by an annuity of principal and interest combined; and all payments on account of principal or interest shall be made either weekly or at such other periods not exceeding half a year as may be agreed.
(4)The proprietor of a house in respect of which an advance has been made may at any of the usual quarter days, after one month’s written notice, and on paying all sums due on account of interest, repay to the local authority—
(a)the whole of the outstanding principal of the advance, or
(b)any part of it, being £10 or a multiple of £10;
and where the repayment is made by an annuity of principal and interest combined, the amount so outstanding, and the amount by which the annuity will be reduced where a part of the advance is paid off, shall be determined by a table annexed to the instrument securing the repayment of the advance.