| 1 Old Dairy Cottages, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 79 m² | £154,000 (2025) |
| 1, Bontnewydd Terrace, Trelewis, Treharris | - | 97 m² | - |
| 2 Bontnewydd Terrace, Trelewis, Treharris | Freehold | 78 m² | £80,000 (2024) |
| 2 Old Dairy Cottages, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 79 m² | £144,500 (2020) |
| 3 Old Dairy Cottages, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 79 m² | £143,000 (2019) |
| 4, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 88 m² | £115,000 (2019) |
| 5, Bontnewydd Terrace, Trelewis, Treharris | - | 84 m² | - |
| 6, Bontnewydd Terrace, Trelewis, Treharris | - | 94 m² | - |
| 7, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 106 m² | £87,000 (2013) |
| 8, Bontnewydd Terrace, Trelewis, Treharris | - | 89 m² | - |
| 9, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 81 m² | £67,000 (2013) |
| 10, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 98 m² | £60,000 (2017) |
| 11, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 97 m² | £97,000 (2017) |
| 12, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 75 m² | £115,000 (2025) |
| 14 Bontnewydd Terrace, Trelewis, Treharris | Freehold | 89 m² | £77,000 (2019) |
| 15 Bontnewydd Terrace, Trelewis, Treharris | Freehold | 81 m² | £83,000 (2023) |
| 16, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 90 m² | £64,000 (2004) |
| 17, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 89 m² | £100,000 (2019) |
| 20, Bontnewydd Terrace, Trelewis, Treharris | - | 79 m² | - |
| 21, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 73 m² | £76,000 (2020) |
| 22 Bontnewydd Terrace, Trelewis, Treharris | Freehold | 113 m² | £117,500 (2019) |
| 24, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 81 m² | £160,000 (2022) |
| 26 Bontnewydd Terrace, Trelewis, Treharris, Treharris | Freehold | 79 m² | £167,500 (2024) |
| 28, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 78 m² | £70,000 (2013) |
| 29, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 80 m² | £59,000 (2004) |
| 30 Bontnewydd Terrace, Trelewis, Treharris | Freehold | 82 m² | £53,000 (2004) |
| 31, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 84 m² | £70,000 (2015) |
| 32, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 82 m² | £79,450 (2013) |
| 33 Bontnewydd Terrace, Trelewis, Treharris | - | 72 m² | - |
| Bontnewydd Hall, Bontnewydd Terrace, Treharris | - | 72 m² | - |
| Lletty Clud, Bontnewydd Terrace, Trelewis, Treharris | Freehold | 112 m² | £95,000 (2016) |
| Trem Y Nant, Bontnewydd Terrace, Trelewis, Treharris | - | 156 m² | - |