When you dream of a blow-up house, it symbolizes instability and fragility in your life. This dream signifies that the foundation upon which you have built your life, whether it be relationships, career, or personal beliefs, may be prone to collapse or sudden changes. The blow-up aspect represents the ephemeral and superficial nature of certain elements in your waking life. It can also suggest feeling overwhelmed or unable to handle the pressures and responsibilities that surround you. Consider reassessing your priorities and finding ways to establish a stronger and more solid foundation for your hopes and ambitions.