How much does it cost to live in a sorority house?

It depends on the campus. Generally, the cost of living "in the house" is priced to be comparable (or slightly lower) than living in the dorms. Or at least that was the case at all of the campuses I worked with as an alumnae advisor. If you have specific questions about a particular college, your best bet is to check with the Office of Greek Life. They would be able to give you general and/or average information for that particular college. Also, all of that information is made available during the recruitment period. So, if you have questions about one specific sorority, you can find out at that time as well. I would definitely recommend contacting the Office of Greek Life at your university - they would be the best place to start for general info about your campus.