The raising of ten new Siege Batteries of the Royal Garrison Artillery was authorised by Army Council Instruction 1307/1916, with effect from 23 June 1916.
| RGA Battery | Raised at |
|---|---|
| 175 Siege Battery | Portsmouth |
| 176 Siege Battery | Dover |
| 177 Siege Battery | Portland |
| 178 Siege Battery | Forth |
| 179 Siege Battery | Fareham |
| 180 Siege Battery | Portsmouth |
| 181 Siege Battery | Forth |
| 182 Siege Battery | Sheerness |
| 183 Siege Battery | Portland |
| 184 Siege Battery | Portsmouth |