You can only look at the living room or other rooms. However, in a house with a transparent north and south, the bedroom faces south and the living room faces north. So facing north is no problem. As for lighting and ventilation, it depends on the location of the building. Some units are located in the recess of the whole building, which is not good. In addition, it depends on whether there is a prominent balcony upstairs, which will also block the light.