CA 3 March 1988. Appeal by landlords (P) against cc decision in favour of tenants (T), granting a declaration that P`s refusal of consent to a proposed change of use r was unreasonable. The lease contains covenants on the part of T not to use the premises other than as a shop without the consent of P. Existing use was as a restaurant and T wished to change the use to that of a self-service snack restaurant with amusement facilities. P, who were also the planning and licensing authority, granted planning permission for the proposed change of use and a gaming licence, but as landlord refused consent to the change. Cc judge made a declaration in favour of T, finding that P had reached their decision in an unreasonable way. P appealed. CA held that cc judge had fallen into error. When determining whether a refusal of consent is reasonable two questions must be considered : 1) the landlord`s reason for refusal - the onus being on the tenant to show the reason and that it is unreasonable a