It is the very house that has a substantial number of wood pillars, which amounts to 116 from which its name 'Ban Sao Nak' is derived. As per a northern dialect, the word 'nak' means many or a lot. It was built in 1895 by Lady Chan Ong (Tontrakul Chantaraviroj) in Burmese-Lanna style. It comprises a grand Thai stilt house, or Ruen Thai in Thai, the inside of which consists of minor stilt houses which are, staggeringly, composed of 116 teakwood pillars that create a stable and consistent frame. At the front stands a formidable 133-year-old butter tree belonging to the Clusiaceae family. Ban Sao Nak was formerly used for accommodating and entertaining distinguished guests, as well as high-ranking aristocrats and state officials. Furthermore, it was used for holding traditional Khantoke dinner and other auspicious events.