161(1)
Where an amount has become recoverable under section 159 of this Act in respect of the compensation specified in a compensation notice, the following provisions of this section shall have effect for the purpose of determining any question as to the unexpended balance of established development value of any land at any subsequent time.
161(2)
Except where, and to the extent that, payment of that amount has been remitted under section 160 of this Act, so much (if any) of that compensation as is attributable to that land shall, for the purpose mentioned in subsection (1) of this section, be treated as not having become payable, and accordingly (notwithstanding anything in section 140 of this Act) shall not be deducted from that balance.