Certified Standard
| Certified Standard | Certified since |
|---|---|
| Corporate Services Division (CSD) | |
| ISO 14001: Environmental Management System | 2013 |
| Development & Construction Division (DCD) | |
| ISO 14001: Environmental Management System | 2009 |
| ISO 50001: Energy Management System | 2012 |
| Estate Management Division (EMD) | |
| ISO 14001: Environmental Management System | 2011 |
| ISO 50001: Energy Management System | 2013 |
| Independent Checking Unit (ICU) | |
| ISO 14001: Environmental Management System | 2014 |