In the absence of a breach of the terms of the tenancy agreement, an assured shorthold tenancy is brought to an end by the landlord giving notice under section 21 of the Housing Act 1988 (HA 1988) and by the execution of a possession order made by the court (see HA 1988, s 5(1)(a)). After the observations of Lewison LJ in Spencer v Taylor, the better view is that if the tenancy is or has at some time been held under a fixed term, then providing the only other tenancy to have arisen is the statutory periodic one under HA 1988, s 5, the notice must comply with the requirements of section 21(1), that is to say, give at least two months' notice. Where the tenancy has only ever been a periodic tenancy, then the notice must comply with HA 1988, s 21(4), giving at least two months’ notice expiring on the last day of a period of the tenancy. Common to both subsections, however, is the requirement