Around the 1870s, G.A Fisher and Clement Denhardt, German nationals, made contact with Lamu and made an ally of then Sultan of Witu, Ahmed Abdullah Simba, who was having issues with Lamu and Zanzibar rulers.
Shortly after, Witu became a German protectorate. It would have it that this building would be the first ever German post office on the East African coast, established on November 22, 1888 but closing shortly after in March 3, 1891 after the withdrawal of Germany from Witu.