King Law Ka Shuk was once used as a study hall, but been serving as the ancestral hall of the Tang clan in Tai Po Tau for over one hundred years. It still serves as a venue for clan members to hold meetings and traditional functions. It is believed that the building was built by the thirteenth generation ancestors Tang Yuen-wan, Tang Mui-kei and Tang Nim Fung in the Ming Dynasty to commemorate their tenth generation ancestor Tang King-law. King Law Ka Shuk was declared a monument in August 1998.