If you dreamed that you bought a duplex house: But you can do a lot with your effort, you can try things you haven't tried before, you can go to places you haven't seen before, or you can make travel plans. Seeing that you buy a duplex house in your dream is seen as a sign of achieving your dreams and achieving your goals. It is a harbinger of good developments that will happen in your life. It also portends a life in abundance.