Section 8 Notice to quit
Once a tenant is served a notice of possession, you have 12 months to start your proceedings. This is explained in Section 8 (3) Housing Act 1988
A notice under this section is one in the prescribed form informing the tenant that:-
Section 21 Notice to quit
Grounds for Possession. Before you can take action to obtain a Possession Order from the County Court, the Landlord must serve a Notice of Intention to seek possession. Under grounds 1, 2, 5, 6, 7, 9 and 16 the Landlord must give two months notice. Under grounds 3, 4, 8, 10, 11, 12, 13, 15 and 17 the Landlord gives two weeks notice - ground 14 can commence immediately.
To terminate an Assured Shorthold Tenancy in England or Wales when the fixed term ends, the landlord or agent must serve a Section 21 Notice (Notice Requiring Possession) giving a minimum of two months notice.
Two types of Section 21 Notice exist: (1) notice served during the fixed term Section 21(1)b and (2) notice for possession that is served during a statutory periodic tenancy Section 21(4)
Possession during the fixed term can only be obtained if a breach of contract is proved and a Section 8 Possession Notice should be used. Here, the judge has some discretion as to weather or not a possession order is awarded.