A house in a dream is usually a stand-in for the self -- its rooms often mirror different parts of your psyche, and its condition can reflect how secure or unsettled you feel right now. A house that's sturdy and familiar can point to a stable sense of identity, while one that's crumbling or unfamiliar may suggest a part of yourself you haven't fully looked at.
Let the Moon be increasing in light, and free from the aspects of the infortunes, when you would cure sore eyes. - William Lilly (1602.-1681.)