| Sep 40 | Formed from Glamorgan Heavy Regiment | Cardiff, UK |
| Sep 40 | Cardiff Fire Command | Cardiff, UK |
| Nov 41 | Docks Fire Command | Cardiff, UK |
| Dec 42 | Disbanded |
Batteries
| Sep 40 | A, B |
| Oct 40 | A |
| Dec 40 | A, 365, 366 |
| Apr 41 | 130, 192, 365, 366 |
| Jul 41 | 130, 145, 170, 192, 365, 366 |
| Aug 41 | 130, 145, 188, 192, 365, 366 |
| Oct 41 | 130, 145, 188, 189, 192, 365, 366 |
| Nov 41 | 130, 145, 188, 189, 192, 365, 366, 427 |
| Dec 41 | 130, 427, 430 |
| Jun 42 | 130, 430 |
| Jul 42 | 130, 187, 430 |
| Oct 42 | 170, 187, 430 |
