Termination of a tenancy requires the service of a valid Notice of Termination giving the appropriate amount of notice, which is 28 days where the tenancy has lasted less than six months or termination is for breach of tenancy obligations. The notice period increases with the duration of the tenancy,
Termination of a tenancy for serious anti-social behaviour also requires the serving of a valid Notice of Termination but the required notice period is only seven days.
In the case of landlords terminating a tenancy, the only exception to the requirement to do so by way of a valid Notice of Termination is where the tenancy is for a fixed term of less than six months and the landlord wants the tenancy to terminate on the expiry of the fixed term.