Which direction the house it was, the opening of the door is always inside is recommended. If the door is opening towards outside, it may disturb the visitors, let us discuss on this, if you are visiting your friends home and standing in front of his door and knock the door, your friend will opened door towards outside, then the door may hit you or you should go back at least 3 feet and later only again you may enter into their home. How inconvenient it is. So better to open the door inside.
