Quan Thang house has been evaluated as being one of the nicest ancient houses in Hoi An. It is over 150 years old with the architecture of Hoa Ha region of China. Through years, the architecture as well as the interior decoration of the house has been lovingly preserved, helping visitors to be able to envision the lifestyle of the owners of this house, a merchant class family that lived in Hoi An generations ago. Research and documentation have shown that this house was made by craftsmen from Kim Bong Carpentry village.