11 Anti-Aircraft Z Regiment RA was formed in January 1941 with three batteries in 12 Anti-Aircraft Division. They formed at New Dechmont Camp, Cambuslang, Glasgow. In April 1944 the Regiment became a Mixed Regiment with ATS personnel. 11 Anti-Aircraft Z Regiment RA disbanded in April 1945 and RHQ was re-designated 4 Area Anti-Aircraft Maintenance HQ.
| Jan 41 | Formed | Cambuslang, Glasgow, UK | |
| Jan 41 |  |
12 Anti-Aircraft Division, 63 Anti-Aircraft Brigade | Scotland |
| Jul 41 | |
12 Anti-Aircraft Division, 42 Anti-Aircraft Brigade | Scotland |
| Oct 42 |  |
6 Anti-Aircraft Group, 42 Anti-Aircraft Brigade | Scotland |
| Apr 44 | |
Became 11 Anti-Aircraft Area Mixed Regiment | |
| Mar 45 | Batteries disbanded Became 4 Area Anti-Aircraft Maintenance HQ |
Batteries
| Jan 41 | 134, 147, 148 |
| Feb 41 | 134, 146, 147, 148 |
| Aug 41 | 134, 146, 147 |
| Oct 42 | 107, 115, 118, 134, 136 |
| Dec 42 | 107, 115, 134, 136, 224 |
Batteries manned by Home Guard
| Battery | Home Guard Unit | Date from |
| 107 Battery | 101 Glasgow (Mixed) | Nov 42 |
| 115 Battery | 101 Renfrewshire (Mixed) | Nov 42 |
| 134 Battery | 102 Renfrewshire (Mixed) | Nov 42 |
| 136 Battery | 101 Dunbartonshire (Mixed) | Nov 42 |
| 224 Battery | 102 Glasgow (Mixed) | Sep 42 |