| 3, Robert Street, Ynysybwl, Pontypridd | Freehold | 97 m² | £60,000 (2009) |
| 4, Robert Street, Ynysybwl, Pontypridd | - | 79 m² | - |
| 5 Robert Street, Ynysybwl, Pontypridd | Freehold | 74 m² | £97,000 (2023) |
| 7, Robert Street, Ynysybwl, Pontypridd | - | 84 m² | - |
| 9, Robert Street, Ynysybwl, Pontypridd | Freehold | 133 m² | £68,000 (2019) |
| 10, Robert Street, Ynysybwl, Pontypridd | Freehold | 80 m² | £97,000 (2019) |
| 11 Robert Street, Ynysybwl, Pontypridd | - | 78 m² | - |
| 12, Robert Street, Ynysybwl, Pontypridd | Freehold | 67 m² | £175,000 (2023) |
| 13, Robert Street, Ynysybwl, Pontypridd | Freehold | 115 m² | £73,000 (2019) |
| 15 Robert Street, Ynysybwl, Pontypridd | Freehold | 83 m² | £62,000 (2005) |
| 17 Robert Street, Ynysybwl, Pontypridd | Freehold | 91 m² | £110,000 (2026) |
| 20 Robert Street, Ynysybwl, Pontypridd, Pontypridd | Freehold | 82 m² | £120,000 (2024) |
| 21, Robert Street, Ynysybwl, Pontypridd | - | 83 m² | - |
| 25 Robert Street, Ynysybwl, Pontypridd | Freehold | 77 m² | £23,000 (1999) |
| 27 Robert Street, Ynysybwl, Pontypridd, Pontypridd | Freehold | 83 m² | £96,500 (2021) |
| 28 Robert Street, Ynysybwl, Pontypridd | Freehold | 80 m² | £85,000 (2024) |
| 29, Robert Street, Ynysybwl, Pontypridd | Freehold | 103 m² | £76,000 (2006) |
| 30 Robert Street, Ynysybwl, Pontypridd | Freehold | 91 m² | £82,500 (2023) |
| 32 Robert Street, Ynysybwl, Pontypridd | Freehold | 100 m² | £95,000 (2021) |
| 35 Robert Street, Ynysybwl, Pontypridd | - | 113 m² | - |
| 37, Robert Street, Ynysybwl, Pontypridd | Freehold | 88 m² | £82,000 (2018) |
| 39A Robert Street, Ynysybwl, Pontypridd | - | 36 m² | - |
| 39B, Robert Street, Ynysybwl, Pontypridd | - | 37 m² | - |
| First Floor Flat, 24 Robert Street, Ynysybwl, Pontypridd | - | 55 m² | - |
| Flat 1, 26 Robert Street, Ynysybwl, Pontypridd | - | 67 m² | - |
| Flat 2, 26 Robert Street, Ynysybwl, Pontypridd | - | 52 m² | - |
| T Cs, 22 Robert Street, Ynysybwl, Pontypridd | - | 45 m² | - |
| Top Floor Flat, 24 Robert Street, Ynysybwl, Pontypridd | Freehold | 53 m² | £95,000 (2018) |