The Property—horizon scanner tracks key upcoming developments of interest to property lawyers. Once a development occurs, it is moved into the archive for the relevant year. This is the archive for events that occurred in 2017. Appeal cases What happened? When? Find out more Possession proceedings - mesne profits Farrar v Leongreen Ltd [2017] EWCA Civ 2211, [2018] All ER (D) 13 (Jan) The Court of Appeal handed down judgment on 21 December 2017. In Farrar v Leongreen Ltd [2017] EWCA Civ 2211, the Court of Appeal decided that a landlord who had successfully brought possession proceedings against its former tenant was not prevented, due to the principles of res judicata, from starting a new claim on the same grounds to recover mesne profits from that former tenant. The landlord was relying, in the second action, on causes of action distinct from the cause of action on which it had relied in the first action. The position was the same as it would have been if the landlord had been unaware that the former tenant had been in