48 Anti-Aircraft Brigade served in the south of England. They were in 1 Anti-Aircraft Division becoming 1 Anti-Aircraft Group when Divisions were abolished.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Aug 39 | Lee Green, Lewisham, London |  | 1 Anti-Aircraft Division |
| Oct 42 | London |  | 1 Anti-Aircraft Group |
| Jan 47 | Re-organised as 15 & 74 AA Brigades | | |
Order of Battle 1939
| 54 (City of London) Anti-Aircraft Regiment |
| 60 (City of London) Anti-Aircraft Regiment |
| 97 (London Scottish) Anti-Aircraft Regiment |
| 99 (London Welsh) Anti-Aircraft Regiment |
Order of Battle 1941-42
| 53 (City of London) Heavy Anti-Aircraft Regiment – rejoined from 6 Anti-Aircraft Division Feb 41 as a mobile regiment, left in Oct 41 to India |
| 54 (City of London) Heavy Anti-Aircraft Regiment |
| 97 (London Scottish) Heavy Anti-Aircraft Regiment – to 49 Anti-Aircraft Brigade Autumn 41 |
| 105 Heavy Anti-Aircraft Regiment – formed Sep 40, to 26 Anti-Aircraft Brigade Summer 41, returned Autumn 41 |
| 109 Heavy Anti-Aircraft Regiment – from 49 Anti-Aircraft Brigade Dec 41, to 26 Anti-Aircraft Brigade by May 42 |
| 141 (M) Heavy Anti-Aircraft Regiment – formed Dec 41, to 49 Anti-Aircraft Brigade Jan 42 |
| 1 Anti-Aircraft Z Regiment – formed Sep 40 |
| 14 Anti-Aircraft Z Regiment – formed Sep 41 |
