The period between the two World Wars was one of massive expansion for London. The city’s population grew and grew, peaking at 8.6 million in 1939 (a total not surpassed until very recently), and new housing was built at a rate never seen before to accommodate this growth. These new homes, council houses and private houses alike, contained modern facilities such as indoor toilets, making them attractive to those living in older, less well-equipped homes. But a new housing development in East Sheen, in south west London, had yet another desirable feature for potential buyers: as the fear of war grew in the 1930s, St Leonard’s Court came with its own purpose-built air raid shelter.