An unfinished structure with an open floor plan that lacks restrooms, ceilings, lighting, flooring, HVAC ductwork, and has little to no plumbing and electrical systems.
A Gray Shell or Cold Shell refers to a partially completed building that includes the exterior envelope (such as walls, roof, and windows) but lacks interior finishes, fixtures, and systems. This state of construction allows for future interior build-out and customization by tenants or owners, providing a flexible space that can be adapted to specific needs.
Building with basic exterior and unfinished interior.
