This is a Property Abandonment Notice.
If you believe your property has been abandoned you must ascertain beyond reasonable doubt whether the tenant has indeed abandoned the premises for good. This is because illegal eviction of a tenant is a criminal offence under the Protection from Eviction Act 1977 and a breach of the tenancy agreement. The landlord should carefully follow the correct procedure to avoid any negative consequences.
Whether the rent is still being paid is a guiding factor, but even if the tenant has defaulted on the rent, s/he is still entitled to protection. The landlord should also:
You should always try to contact the tenant or a relative or friend, make enquiries of neighbours and obtain evidence from them in writing if possible, check through windows whether it appears that any furniture or belongings have been removed from the property and always ensure that there are no personal belongings such as items of clothing, toiletries or bedding it is also advisable to check for food stuffs and provisions in the fridge and always take photos to prove nothing was left in the property which made it habitable.