Debunking the "Brothel Law" Myth

I remember when i visited Rhodes in Memphis my junior year in high school someone in the group asked why the sorority houses where so small and the guide told us that it was because of a brothel law in tennessee. Could this be true? i mean not that there is one, but maybe the school thought there was one and banned girls living in the houses. Basically the houses are only big enough for chapter and maybe dinners there but thats about it.