the building was not repaired until 1947, when the taiwan provincial government initiated a restoration plan funded through private donations. the restoration involved approximately 81,000 workers and was completed at the end of 1948, looking only slightly different from the original building. since the timing of the restoration's completion coincided with the 60th birthday of president chiang kai-shek, it was renamed chieh shou hall. ("chieh shou" means "long live chiang kai-shek".) beginning in mid-1949, the building served as the southeast military affairs office and, following the retreat of the roc central government from mainland china to taiwan, it became the office of the president in 1950. since 2006 the name chieh shou hall was dropped. the structure is officially referred to in english simply as the presidential office building. it was previously known as the presidential palace.