Hang Out Space is a community recreation project that explores how architecture can mediate between movement, sound, and social interaction in a dense urban context. Anchored by three thick structural walls, the building supports a series of floating spaces connected by free circulation, allowing activities to unfold continuously across levels. These walls act simultaneously as structure, sound buffer, and spatial threshold—separating loud and quiet programs while maintaining visual and physical continuity. Through sectional layering and environmental analysis, the project translates site context, noise, and occupation into an architecture defined by motion, permeability, and shared use.