| 1, Hazel Grove, Trethomas, Caerphilly | Freehold | 78 m² | £126,000 (2019) |
| 2, Hazel Grove, Trethomas, Caerphilly | Freehold | 90 m² | £207,500 (2024) |
| 3, Hazel Grove, Trethomas, Caerphilly | Freehold | 106 m² | £110,000 (2004) |
| 4 Hazel Grove, Trethomas, Caerphilly | Freehold | 80 m² | £190,000 (2023) |
| 6 Hazel Grove, Trethomas, Trethomas | - | 79 m² | - |
| 7, Hazel Grove, Trethomas, Caerphilly | - | 81 m² | - |
| 8, Hazel Grove, Trethomas, Caerphilly | Freehold | 89 m² | £117,000 (2013) |
| 9, Hazel Grove, Trethomas, Caerphilly | Freehold | 78 m² | £168,500 (2019) |
| 10, Hazel Grove, Trethomas, Caerphilly | Freehold | 78 m² | £146,000 (2016) |
| 11 Hazel Grove, Trethomas, Trethomas | - | 79 m² | - |
| 13, Hazel Grove, Trethomas, Caerphilly | - | 127 m² | - |
| 14, Hazel Grove, Trethomas, Caerphilly | Freehold | 130 m² | £98,000 (2013) |
| 15, Hazel Grove, Trethomas, Caerphilly | Freehold | 81 m² | £107,500 (2013) |
| 16 Hazel Grove, Trethomas, Caerphilly | Freehold | 130 m² | £209,500 (2024) |
| 17, Hazel Grove, Trethomas, Caerphilly | Freehold | 79 m² | £134,000 (2018) |
| 19, Hazel Grove, Trethomas, Caerphilly | Freehold | 83 m² | £52,500 (2002) |
| 20 Hazel Grove, Trethomas, Caerphilly | Freehold | 89 m² | £215,000 (2025) |
| 23, Hazel Grove, Trethomas, Caerphilly | - | 79 m² | - |
| 24, Hazel Grove, Trethomas, Caerphilly | - | 80 m² | - |
| 26, Hazel Grove, Trethomas, Caerphilly | Freehold | 79 m² | £45,300 (2001) |
| 27 Hazel Grove, Trethomas, Trethomas | - | 78 m² | - |
| 28 Hazel Grove, Trethomas, Caerphilly | Freehold | 79 m² | £195,000 (2025) |
| 31 Hazel Grove, Trethomas, Caerphilly | - | 80 m² | - |
| 33, Hazel Grove, Trethomas, Caerphilly | Freehold | 109 m² | £160,000 (2024) |
