29 Anti-Aircraft Brigade was formed in January 1936. It served in the South East of England covering Kent and Essex. 29 Anti-Aircraft Brigade was disbanded in February 1942.
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.
| Jan 36 | Formed as 29th (East Anglian) Anti-Aircraft Group |  | 1 Anti-Aircraft Division |
| Sep 39 | Thames Estuary, Kent & Essex |  | 6 Anti-Aircraft Division |
| May 40 | Boxted, Essex | | 6 Anti-Aircraft Division |
| Feb 42 | Disbanded | | |
Order of Battle 1936
| 59 (The Essex Regiment) Anti-Aircraft Brigade (164, 167, 193 Batteries) |
| 28 (Essex) Anti-Aircraft Battalion RE (TA) (309, 310, 311, 312 Companies) – Searchlights |
| 33 (St Pancras) Anti-Aircraft Battalion RE (TA) (332, 333, 334 Companies) – Searchlights |
| 36 (Middlesex) Anti-Aircraft Battalion RE (TA) (317, 345, 346 Companies) – Searchlights |
Order of Battle 1939
| 28 (Essex) Anti-Aircraft Battalion RE (TA) |
| 29 (Kent) Anti-Aircraft Battalion RE (TA) |
| 33 (St Pancras) Anti-Aircraft Battalion RE (TA) To 41 AA Brigade in September |
| 73 (Kent Fortress) Anti-Aircraft Battalion RE (TA) (322, 347 Companies) |
| 74 (Essex Fortress) Anti-Aircraft Battalion RE (TA) (310, 335, 469 Companies) |
It became an all Searchlight Brigade
Order of Battle Summer 1941
| 99 (London Welsh) Heavy Anti-Aircraft Regiment (302, 303, 318 Batteries) – Left May 1941 |
| 121 Heavy Anti-Aircraft Regiment (385, 387, 388 Batteries) – Joined May 1941 |
| 48 Light Anti-Aircraft Regiment (49, 95, 182, 242 Batteries) |
| 49 Light Anti-Aircraft Regiment (84, 119 Batteries) |
| 28 Searchlight Regiment (309, 311, 312 Batteries) |
| 74 Searchlight Regiment (310, 335, 469 Batteries) |
Order of Battle Spring 1942
| 71 (Forth) Heavy Anti-Aircraft Regiment (229, 325 Batteries) – Joined January 1942 |
| 121 Heavy Anti-Aircraft Regiment – Left February 1942 |
| 48 Light Anti-Aircraft Regiment – Left August 1941 |
| 62 Light Anti-Aircraft Regiment (185 Battery) – Joined August 1941 |
| 81 Light Anti-Aircraft Regiment (199(left Jan 42), 261, 307 Batteries) – Joined September 1941 |
| 298 Independent Light Anti-Aircraft Battery – Joined January 1942 |
| 28 Searchlight Regiment (309, 311, 312 Batteries) – Left January 1942 |
| 74 (Essex Fortress) Searchlight Regiment (310, 335, 469 Batteries) – Left January 1942 |
| 81 Searchlight Regiment (482, 509, 545, 555 Batteries) |
