Town and country planning – Development. The claimant applied to quash the decision of the inspector appointed by the first defendant Secretary of State to grant a certificate of lawful use. The Planning Court, in dismissing the application, held that a proper interpretation of Class F of Pt 3 of Sch 2 to the Town and Country Planning (General Permitted Development) Order 1995, SI 1995/418, permitted a change from a single planning unit to up to three planning units. Accordingly, the inspector had applied the law correctly in concluding that functional and physical separation had been required by the clear words of the Order.