Upon the completion by the local housing authority of the purchase by them under section 290 (land acquired for clearance)—
shall be extinguished and any such apparatus shall vest in the authority.
Subsection (1) has effect subject to—
A person who suffers loss by the extinguishment of any right or the vesting of any apparatus under subsection (1) is entitled to be paid by the local housing authority compensation to be determined under and in accordance with the Land Compensation Act 1961.