In the heart of Shenzhen’s skyline, a new vertical city rises (Image 1). While the exterior commands attention, the interior lobby offers a quieter, more technical revolution. The design intent was to dissolve the boundaries between the walls and the ceiling, creating a continuous, organic envelope that feels less like a building and more like a carved cavern. To achieve this in Honed White Limestone, we had to push stone fabrication to its geometric limits.

The Challenge: Stone as Fabric Stone is inherently rigid and planar. Making it "flow" like fabric requires advanced intervention. The lobby features soaring columns that flare outward as they rise, merging into a rhythmic, ribbed ceiling (Images 2 & 4). This required the fabrication of hundreds of hyperbolic (double-curved) and single-curved panels.

The Solution: 5-Axis Profiling & Composite Engineering To realize these complex shapes without imposing dangerous weight loads on the ceiling structure, we utilized a hybrid approach. For the massive column bases and high-impact zones, we employed 5-Axis CNC Profiling to carve solid blocks into precise curvatures. For the overhead ceiling elements (Image 3), we utilized Stone Honeycomb Composite panels. By milling the stone veneer to a mere 5mm and bonding it to a curved aluminum core, we achieved the necessary geometry at a fraction of the weight.

The Factory as a Laboratory The success of such a project is determined long before installation. Our factory floor became a massive assembly ground.

• The Mock-Up: Images 7 and 8 show the critical prototyping phase. Here, we hand-finished the complex corner transitions—where vertical curves meet horizontal radii—to ensure the geometry was flawless.

• The Dry-Lay: Images 6 and 9 reveal the scale of production. We laid out entire sections of the curved cladding in our facility. This allowed us to verify the continuity of the "ribs" (the black reveal strips) and the color consistency of the limestone.

The Installation The on-site photos (Image 5) show the raw scale of these units. The precision achieved in the factory meant that these massive curved segments could be installed like a giant 3D puzzle, with joints aligning perfectly to create the illusion of a single, continuous surface.

This project proves that with the right technology, stone need not be static. It can soar, curve, and flow, defining the next generation of supertall architecture.