‧Design Thinking: The site is extremely narrow and elongated, with one side significantly higher than the surrounding buildings. The entire site resembles a thick cross-section. ‧Design Operation: From sectional perspective, the section is like a canvas, creating longitudinal spatial dimensions from the section. ‧Site Conditions: Narrow and elongated site (6 meters x 43 meters) ‧Use: Mixed-use function of art gallery and guesthouse with three types of living space ‧Users: Exhibition attendees, guests