The Technikum buildings were used by various occupying armies during the war. Initially, they served the Turkish army during World War I, and later the German army. The Technikum buildings functioned as a Turkish-German fortification that was converted into an Ottoman hospital. After the British occupation, the buildings continued to serve as a British military hospital marked with the Red Cross. Additionally, the British also utilized the workshops. After the war, in 1920, the Technikum was purchased from the “Ezra” company by the Zionist Organization, headed by Otto Warburg.