520 (Kent & Sussex) Coast Regiment RA(TA) was formed from part of the Kent & Sussex Heavy Regiment RA(TA), in July 1940. RHQ & 428 Battery were placed in suspended animation in March 1946 and was disbanded in January 1947.
| Jul 40 | Formed from part of Kent & Sussex Heavy Regiment | Dover, Kent, UK |
| Jul 40 | Dover Citadel | Dover, Kent, UK |
| Oct 40 | Landguard Fort | Harwich, Essex, UK |
| Dec 41 | Dover Citadel | Dover, Kent, UK |
| Dec 42 | Western Counter Bombardment Fire Command (Dover Defences) |
Dover, Kent, UK |
| Mar 46 | Suspended animation |
Batteries
| Jul 40 | A, B, C |
| Dec 40 | A, B, C, 414 |
| Mar 41 | A, B, C, 414, 423 |
| Apr 41 | 169, 295, 296, 414, 423 |
| May 41 | 217, 295, 296, 414, 423 |
| Oct 41 | 295, 423 |
| Dec 41 | 295, 423, 424, 428 |
| Apr 43 | 289, 423, 424, 428 |
| Apr 44 | 194, 213, 233, 235, 289, 291, 335, 340, 413, 415, 416, 423, 424, 428 |
| Jun 44 | 428 |
