6E+WA tenancy is not a secure tenancy if—
(a)the dwelling-house has been leased to the landlord with vacant possession for use as temporary housing accommodation,
(b)the terms on which it has been leased include provision for the lessor to obtain vacant possession from the landlord on the expiry of a specified period or when required by the lessor,
(c)the lessor is not a body which is capable of granting secure tenancies, and
(d)the landlord has no interest in the dwelling-house other than under the lease in question or as a mortgagee.