If you are making a U.K. entry clearance Visa and Settlement Application or
if you are sponsoring someone who is family members, spouse.
The U.K. Border Agency requires supporting documents to prove that the intended accommodation is suitable.
In most cases the ‘sponsor’ is the relative or a friend residing in th U.K.
The sponsor / visitor has to apply to the Home Office for entry clearance.
As part of the application the Home Office would seek confirmation from a reputable body that the proposed accommodation is suitable to accommodate the person/persons that are being sponsored.