Beyond the terms of the occupation contract, the contract-holder has other obligations.

These can be summarised (not exhaustively) here:

Give honest and truthful statements during the application process.
Pay a reasonable (market) rent.
Pay the rent, bills, and service charges as and when they are due.
Treat the landlord’s property, furniture, and fittings with respect.
Report defects to the landlord immediately they become apparent or as soon as is reasonably practical in the circumstances and not permit waste (damage).
Ask for consent to keep pets unless already approved by the landlord.
Follow the rules on not smoking.
Not behave in an anti-social way, particularly around neighbours.
Take reasonable responsibility for the household and visitors to the property.
Not bring into full residential occupation other residents without informing the landlord.
Not leave the accommodation unoccupied for long periods without informing the landlord.
Give the notice to quit in writing, should they wish to bring the contract to an end outside of the fixed term and end the contract properly.
Not to use the security deposit in place of rent.
Insuring their possessions.
To permit the agent access when lawfully requested.

Contract-holder Obligations