Judge Jacobs held in R(H)5/09 that following Miah, it was permissible to take a functional approach to the definition of a dwelling. Thus if the claimant has rented the premises, or part of the premises solely in order to live there (as opposed say to rent a garage in order to carry out a car repair business , but incidentally sleep there overnight), then the premises would be a dwelling for the pruposes of HB legislation. (CF R v Warrington BC ex p Williams)
In the present case, I don’t think that the fact that the authority had rated the site for business rates ought to be conclusive. It is the nature of the agreement between the HB claimant and the landlord that is in my view decisive.
So, yes the caraven may be eligible