Define Zone without GPS co-ordinates?

So I want to use the iOS app for room detection using iBeacons. But since my house is not that big, the GPS coordinates of Bedroom and Kitchen overlap. Same for the Zone: Home. Is there a way for iOS app to report location only if iBeacon signal is found? That way…if no iBeacons found by iOS app then it should put my Zone to Home, else Bedroom or Kitchen.