Originally, my chapter owned land just off the corner of 16th and R, with about a 58 foot frontage to 16th street. When the University decided that men's and women's dorms and sorority/fraternity houses had to be on the opposite sides of the street (men on one side, women on the other), we ended up getting a frontage of nearly 90 feet on R Street at the corner of 15th and R. Big difference, and I actually believe that we were forced to trade with Pi Beta Phi, but I'm not sure if they owned the land our house was on at the time. However, their house located on that smaller plot on R Street, so some how they ended up with that land.
The first portion of the chapter house was built in 1926, designed by a Beta architect, I believe from Indiana's chapter. So the house was built exclusively for the chapter. In 1962, an addition was built that moved the kitchen and dining room out of the basement, and added more rooms on the second floor. Originally the roof of the addition wasn't allowed to be converted into a deck, but sometime in the mid to late 70's that changed, and we now have the largest deck on campus.
The Sigma Nu house at Nebraska is supposedly haunted
Link
Those are the only histories I know of.