Low-poly 3D model of a small, box-shaped retail shop with a rectangular footprint and flat roof. Front features a large glass window and centered double glass doors with thin metal frames. Above, a blank rectangular signboard. Side walls are plain, each with a small square window. Roof is flat with slight front overhang. Use simple PBR materials: muted brick or concrete walls, glossy glass, matte metal frames. Optimize for real-time use in Unity with clean topology and UVs.