| 6 Highfield Road, Twyn, Ammanford | Freehold | 270 m² | £422,500 (2023) |
| 7, Highfield Road, Twyn, Ammanford | Freehold | 106 m² | £100,000 (2016) |
| 8, Highfield Road, Twyn, Ammanford | Freehold | 88 m² | £85,500 (2016) |
| 15, Highfield Road, Twyn, Ammanford | - | 90 m² | - |
| 17 Highfield Road, Twyn, Ammanford | Freehold | 97 m² | £125,000 (2025) |
| 20, Highfield Road, Twyn, Ammanford | Freehold | 93 m² | £205,000 (2020) |
| 24, Highfield Road, Twyn, Ammanford | Freehold | 108 m² | £147,500 (2004) |
| 28, Highfield Road, Twyn, Ammanford | Freehold | 84 m² | £87,000 (2004) |
| 30, Highfield Road, Twyn, Ammanford | Freehold | 56 m² | £75,000 (2018) |
| 34 Highfield Road, Twyn, Ammanford | - | 91 m² | - |
| 36, Highfield Road, Twyn, Ammanford | Freehold | 99 m² | £160,000 (2022) |
| 38 Highfield Road, Twyn, Ammanford | Freehold | 101 m² | £103,000 (2025) |
| 39, Highfield Road, Twyn, Ammanford | Freehold | 163 m² | £260,000 (2009) |
| 41 Highfield Road, Twyn, Ammanford | Freehold | 174 m² | £420,000 (2025) |
| 42, Highfield Road, Twyn, Ammanford | Freehold | 99 m² | £220,000 (2012) |
| 50, Highfield Road, Twyn, Ammanford | Freehold | 95 m² | £85,000 (2016) |
| 54 Highfield Road, Twyn, Ammanford | Freehold | 77 m² | £250,000 (2026) |
| 56, Highfield Road, Twyn, Ammanford | Freehold | 102 m² | £170,000 (2006) |
| Annexe, 45 Highfield Road, Twyn, Ammanford | - | 33 m² | - |