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.
When the Moon and lord of the ascendant shall be impedited by the lord of the 8th, the sick person hath cause to fear. - William Lilly (1602.-1681.)