The Roof House, a three-level residence on a 189-square-wah plot, balances functionality and warmth for a family of four and their pet. It features a single-slope roof creating a single-story illusion. A central courtyard with double-height space fosters openness, while private bedrooms are at the back. The design allows family members on the upper floors to overlook the activities below, maintaining a connection while enjoying the tranquility of their private retreats under a single roof.