Lo Wai is the first built of the five renowned walled villages in Lung Yeuk Tau, Fanling established by the Tang clan whose ancestors branched out from the main Tang settlement in Kam Tin in the 13th century. The Tangs since then established eleven villages in the area, known as 'Five Wais (Walled villages) and Six Tsuens (Villages)'.

Lo Wai is a village enclosed by brick walls on four sides. The present village entrance tower is not the original one which faced the north but was relocated towards the east in order to achieve better fung shui. Although the wai has undergone changes with the entrance tower relocated, most of the original village wall and the layout of the village still exist.

Repairs to a portion of the wall was undertaken in 1991 with funds provided by the North District Office. The entrance tower and enclosing walls of Lo Wai were declared a monument on 31 January 1997. Full restoration works were completed in 1998.