Where a dwelling-house is affected by subsidence damage, Schedule 4 to this Act (which confers on any person displaced from the dwelling-house a right, in certain circumstances, to receive a home loss payment) shall apply if the requirements of subsection (2) below are satisfied.
The requirements of this subsection are satisfied if—
by reason of deterioration due to the subsidence damage in the condition of the dwelling-house, the dwelling-house cannot reasonably be rendered fit to be used as such; and
the dwelling-house is not used as such by or with the authority of the person who immediately before the deterioration in its condition was entitled to possession of it.