Twenty One Industrial Estate is a modern, A-grade industrial park located in Clayville, Olifantsfontein, strategically positioned alongside the R21 highway with direct access to major logistics routes connecting Johannesburg, Pretoria, Midrand, and OR Tambo International Airport.

The estate comprises high-specification warehouse and logistics buildings designed to support large-scale distribution, manufacturing, and storage operations. Buildings typically feature steel-frame industrial construction with durable concrete flooring, plastered brick office components, and insulated metal or Chromadek roofing for efficient temperature control and long-term durability.