Right now the house is only helpful for checking a few statistics such as if, and if so how many girls ran away from your brothels, so you know if there is any point in using the 'Recapture' option on your gangs. It can also be used to view how many businesses you own, and what your current mission is.
All in all nothing major, if you're curious about the above things you can check there, otherwise just ignore it for now. For now it might be an idea to just revert it to the old settings (all it did is show the info behind the 'More Details' tab, since there's nothing else to do anyway), to avoid confusion.