The Koga Residence, the Kamakura Museum of Literature and the Former Residence of Kachonomiya are the three most important western-style buildings in Kamakura. It took approximately 15 years to build the Koga Residence which was used as a villa by Seijiro Sho, managing director of the Mitsubishi Joint-Stock Company. A disaster recovery conference was held here immediately after the 1923 Great Kanto Earthquake. In 1937 the house was acquired by Sadachika Koga, head of Nippon Tochi-Tatemono Co., Ltd. Later, Osachi Hamaguchi and Fumimaro Konoe, both former Prime Ministers, used the house as a villa. Currently the house functions as a restaurant.