Through the integration of old and new, the transformation of spatial materials and arrangement of configurations, the designers brought a new look to the old house. By using floor-to-ceiling windows, light is naturally introduced to make the space bright and comfortable. Through the concealed plumbing design, the designer expands the space of the house. In this space, the elderly can move around freely and comfortably, and family members and caretakers can enjoy a spacious and high quality living space while taking into account the need for interaction and privacy.