Kun Lung Wai, presently known as San Wai, is one of the eleven Tang villages in Lung Yeuk Tau, Fanling. Although this village was reportedly settled by members of the Tang clan during the 14th century, the walls of San Wai were believed built in 1744 as the stone lintel above the main entrance to the village is engraved with 'Kun Lung, dated this Jiazi of the Qianlong reign'. Kun Lung Wai is enclosed with brick walls on all four sides. It is the most authentic and undisturbed walled village left in the area. The gate house of the walled village was declared a monument in 1988 and has since been properly restored.