You can ask to keep a pet
You can ask your landlord to let you keep a pet. They must consider the request and should give a reason if they say no. A blanket 'no pets' line doesn't stop you asking.
Source: GOV.UK: Renters' Rights Act overview for tenants. Checked 18/10/2026. In force from 01/05/2026.
Check your contract against this
Legal information, not legal advice. For your own situation, Shelter (england.shelter.org.uk) and Citizens Advice (citizensadvice.org.uk) give free advice.