You can end your tenancy:

• on the ground that the landlord has breached the tenancy agreement
• because you would suffer undue hardship if the tenancy continued
• because the premises have become unusable
• on a prescribed ‘extraordinary’ ground (such as because of domestic violence)
• on the ground that the landlord has increased the rent when you have a ‘long-term’ fixed-term tenancy agreement of more than 2 years.

If you want to end your tenancy this way, you will have to:

• give the landlord/agent a written termination notice with the appropriate notice period (see below), and/or
• apply to the Consumer, Trader and Tenancy

Tribunal (CTTT) for a termination order.
A termination order ends the tenancy and specifies the day by which you must give the landlord vacant possession.