Borujerdi house, which belongs to the Qajar period, has an area of about 3,000 meters. There is an interesting narrative about the reason behind the construction of this mansion, saying that a Kashani merchant, named Hassan Natanzi, fell in love with the daughter of another Kashani merchant named Ja’far Tabatabaei. Ja’far Tabatabaei’s condition for agreeing to her daughter’s marriage was that Hasan Natanzi shall build a house proper for her daughter’s dignity. Therefore, Hassan Natanzi invited a skilled architect called Ali Maryam (the architect of Tabatabaei House) to build this beautiful mansion. Because Hassan Natanzi had many trips to Borujerd, this house was nicknamed Borujerdi House.
It could be mentioned that the Borujerdi House is one of the most beautiful historical houses in Iran, in terms of plasterworks and Karbandi (a kind of Iranian decoration which is performed on the ceiling), which was selected as the best-visiting destinations by UNESCO in 2015 and 2016.