Hacienda was an independent exhibition space in Zürich founded by artist Fabian Marti, art historian Arthur Fink and the current gallerist Oskar Weiss (see www.weissfalk.ch). It was active between 2012 and 2015 (?) and located in a former Kinderkrippe in the center of Zürich. See the interview by Mitchell Anderson for Flash Art here. They also founded the publishing house Hacienda Books, currently under the direction of Oskar Weiss.