Sustainable Food Knighton protest against the 110k chicken farm planned at Llanshay. From September. ENVIRONMENTAL campaigners are claiming a legal victory, and that planning approval of a 110,000 chicken farm near Knighton will be quashed. But a date for a Judicial Review remains in the court lists, and it is likely that the application will remain in the planning system waiting for a new decision. Sustainable Food Knighton (SFK) said that Powys County Council (PCC) hasd conceded that it had acted unlawfully in granting planning permission last September, for a 110,000 broiler chicken intensive poultry unit (IPU) at Llanshay Farm near the town.