Mill Hill School Foundation occupies a 150-acre site. Many of the buildings are Grade II listed and are of historic interest. The beautiful grounds and gardens, some of which still have the rare and exotic plants imported by Peter Collinson in the 18th Century, are superbly managed and kept and have stunning views across London. Within the grounds are four separate schools all with unique facilities, sports centres, a swimming pool, buildings old and new, a CCF range, the Patrick Troughton Theatre, and even an underground bunker. Mill Hill School has been used for a number of feature films, dramas, videos and adverts as well as stills photography over the last 15 years.