Photo above is an old photo of a private residence in Nan town, nowadays it is behind a house along the street behind the Therawat Hotel. The house is supposed to be 120 years old and it is still a private residence. The information comes from Preaw (Thai language only). Below are 2 newer photos of the same house. For more information about Nan province see Destination Travel Guide Nan.
When visiting this location be aware that it is private property and normally not open to the public. Entering the house would be trespassing!