While I was there total was at 45. There are a few different sized houses, so the amount that will live there is going to vary. The sororities all have the same sq. footage (If I'm remembering correctly) they are just different floor plans. It won't be anywhere near as massive as the house that Sigma Nu finished in 1998. Here's a link to their home page...I don't have a clue how to get the pic in there. They are able to house over 50, and it's a really beautiful place!
http://www.uh.edu/sigmanu/
aj