73 Notices to quit served by owner-occupiers.S
Where a person who has occupied a dwelling-house as a residence (in this section referred to as “the owner-occupier”) has, by virtue of a Part VII contract, granted the right to occupy the dwelling-house to another person and—
(a)at or before the time when the right was granted, or, if it was granted before 8th December 1965, not later than 7th June 1966) the owner-occupier has given notice in writing to that other person that he is the owner-occupier within the meaning of this section, and
(b)if the dwelling-house is part of a house, the owner-occupier does not occupy any other part of the house as his residence,
neither section 71 nor section 72 above shall apply where a notice to quit the dwelling-house is served if, at the time the notice is to take effect, the dwelling-house is required as a residence for the owner-occupier or any member of his family who resided with him when he last occupied the dwelling-house as a residence.