| 1 Ffordd Jasper, Caergybi, Ynys Mon | - | 67 m² | - |
| 4 Ffordd Jasper, Caergybi, Ynys Mon | - | 75 m² | - |
| 5 Ffordd Jasper, Caergybi, Ynys Mon | - | 75 m² | - |
| 7 Ffordd Jasper, Caergybi, Ynys Mon | - | 67 m² | - |
| 8, Ffordd Jasper, Holyhead | - | 67 m² | - |
| 9 Ffordd Jasper, Caergybi, Ynys Mon | - | 67 m² | - |
| 10, Ffordd Jasper, Holyhead | - | 70 m² | - |
| 11, Ffordd Jasper, Holyhead | Freehold | 72 m² | £29,000 (1999) |
| 12, Ffordd Jasper, Holyhead | Freehold | 89 m² | £71,500 (2014) |
| 13 Ffordd Jasper, Holyhead, Holyhead | Freehold | 78 m² | £117,500 (2026) |
| 14, Ffordd Jasper, Holyhead | Freehold | 73 m² | £88,000 (2016) |
| 15, Ffordd Jasper, Holyhead | Freehold | 77 m² | £13,200 (2003) |
| 16, Ffordd Jasper, Holyhead | - | 70 m² | - |
| 17 Ffordd Jasper, Holyhead | - | 68 m² | - |
| 18, Ffordd Jasper, Holyhead | Freehold | 69 m² | £73,000 (2018) |
| 19, Ffordd Jasper, Holyhead | Freehold | 69 m² | £90,000 (2008) |
| 20 Ffordd Jasper, Holyhead | Freehold | 72 m² | £34,000 (2000) |
| 21, Ffordd Jasper, Holyhead | - | 70 m² | - |
| 22 Ffordd Jasper, Holyhead | Freehold | 77 m² | £77,000 (2004) |
| 23, Ffordd Jasper, Holyhead | Freehold | 74 m² | £90,000 (2007) |
| 24, Ffordd Jasper, Holyhead | - | 70 m² | - |
| 26, Ffordd Jasper, Holyhead | Freehold | 91 m² | £120,000 (2016) |
| 27 Ffordd Jasper, Holyhead, Holyhead | - | 71 m² | - |
| 30, Ffordd Jasper, Holyhead | Freehold | 100 m² | £105,000 (2008) |
| 31, Ffordd Jasper, Holyhead | Freehold | 83 m² | £85,000 (2018) |