Because of the large scale bombing of the civilian population by the Germans during WW2 and the consequent destruction of many homes there was a desperate shortage of housing after the war. It was to meet this need that prefabricated (flat pack) houses were designed (“Prefabs”). Built in the factory they could be very quickly erected on site around a central utility point already installed in the foundations. The housing was meant to last 10 years. During my childhood there were still many prefabs in South London and they continued to exist well into the late 1960s. Amazingly and wonderfully some still exist now some 60 years after their ‘use by date’. This example is on the Excalibur Estate in Catford, South London, and it was photographed by Anthony J Sargeant in July 2016.