Key
| Heavy Anti-Aircraft Site |  | Coast Battery |  |
The numbers in brackets after the site number were added by me to differentiate between sites with the same number code.
| Site No. | Name | OS Grid Reference |
| YH1 | West Caistor | TG 505 114 |
| YH2 | TG 525 025 | |
| YH3 | Gorleston | TG 517 046 |
| YH4(1) | Race Course | TG 527 101 |
| YH4(2) | TG 487 108 | |
| YH5 | TG 479 048 |
Heavy AA Regiments known to have occupied sites in this GDA
| Dates | Units |
| Jun 42 | 106 Heavy Anti-Aircraft Regiment RA |