(1) The chief executive must notify a territorial authority (as soon as is reasonably practicable after the event, and in enough detail to enable particulars to be included in a land information memorandum issued by a territorial authority under section 44A of the Local Government Official Information and Meetings Act 1987) of any of the following events occurring in relation to a dwellinghouse in its district:
(g) the discontinuance or termination, for any other reason (for example, under section 55 and because of a change of ownership), and if known to the department, of a claim.