| 1 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 3, Rock Street, Holyhead | - | 91 m² | - |
| 4 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 5 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 6 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 8 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 9, Rock Street, Holyhead | - | 95 m² | - |
| 10 Rock Street, Caergybi, Ynys Mon | - | 84 m² | - |
| 11, Rock Street, Holyhead | - | 91 m² | - |
| 12 Rock Street, Caergybi, Ynys Mon | Freehold | 83 m² | £74,000 (2016) |
| 13 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 14 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 15 Rock Street, Caergybi, Ynys Mon | - | 89 m² | - |
| 17 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 18 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 19 Rock Street, Caergybi, Ynys Mon | - | 94 m² | - |
| 20 Rock Street, Caergybi, Ynys Mon | - | 76 m² | - |
| 21, Rock Street, Holyhead | - | 76 m² | - |
| 23, Rock Street, Holyhead | Freehold | 85 m² | £90,000 (2010) |
| 25 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 27 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 29 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 30 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 31 Rock Street, Holyhead | Freehold | 92 m² | £115,000 (2024) |
| 32 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 33 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 34 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 35 Rock Street, Caergybi, Ynys Mon | - | 89 m² | - |
| 36 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 38, Rock Street, Holyhead | Freehold | 79 m² | £105,000 (2018) |
| 39 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 40 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 41 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 43, Rock Street, Holyhead | - | 80 m² | - |
| 45 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |
| 47 Rock Street, Caergybi, Ynys Mon | - | 97 m² | - |