Where in the case of any dwelling-house affected by subsidence damage, at any time before the completion of remedial works or, in a case falling within section 8(4) above, at any time before all sums in respect of which the Corporation are liable to make payments have been expended—
the Corporation shall make in respect of the dwelling-house a payment equal to the amount of the depreciation in the value of the dwelling-house caused by the damage.
Subsection (1) above applies without prejudice to any expenditure or liability of the Corporation under section 7 or 8 above in respect of works already executed; and where the Corporation make a payment under that subsection no further action is required of them under this Part in pursuance of their remedial obligation in respect of the dwelling-house.
Where in the case of any property affected by subsidence damage—
the Corporation shall make in respect of the property a payment equal to the amount of that depreciation.
References in subsection (1)(b) above to the making of a demolition or closing order in respect of the dwelling-house include, in relation to England and Wales, references to an area in which the dwelling-house is situated being declared to be a clearance area.