The Trelhün Khangsar (bkras lhun khang gsar) was a large triangular building on the east side of the Barkor (bar skor) in Lhasa. It was probably built around 1900. Trashi Lhünpo (bkra shis lhun po) monastery owned the property, which included both residential and commercial spaces. The monastery earned income from renting out the units of the building. Most of the units had a shop on the first floor and a dwelling area on the second floor. The building was torn down in the late 1990s.