| 1, St. Nons Avenue, Carmarthen | Freehold | 120 m² | £194,500 (2016) |
| 2 St. Nons Avenue, Carmarthen | Freehold | 97 m² | £189,000 (2022) |
| 5, St. Nons Avenue, Carmarthen | - | 82 m² | - |
| 6 St. Nons Avenue, Carmarthen | Freehold | 86 m² | £235,000 (2024) |
| 7 St. Nons Avenue, Carmarthen | - | 118 m² | - |
| 8, St. Nons Avenue, Carmarthen | Freehold | 141 m² | £208,000 (2018) |
| 9, St. Nons Avenue, Carmarthen | Freehold | 92 m² | £170,000 (2013) |
| 12, St. Nons Avenue, Carmarthen | Freehold | 147 m² | £210,000 (2018) |
| 14, St. Nons Avenue, Carmarthen | Freehold | 109 m² | £45,000 (1997) |
| 15, St. Nons Avenue, Carmarthen | Freehold | 88 m² | £52,000 (1995) |
| 16, St. Nons Avenue, Carmarthen | Freehold | 132 m² | £165,000 (2010) |
| 17, St. Nons Avenue, Carmarthen | Freehold | 97 m² | £253,000 (2023) |
| 18 St. Nons Avenue, Carmarthen | Freehold | 92 m² | £301,000 (2026) |
| 19, St. Nons Avenue, Carmarthen | Freehold | 85 m² | £238,500 (2023) |
| 20, St. Nons Avenue, Carmarthen | - | 88 m² | - |
| 21 St. Nons Avenue, Carmarthen | Freehold | 94 m² | £255,000 (2025) |
| 22, St. Nons Avenue, Carmarthen | Freehold | 100 m² | £160,000 (2009) |
| 23, St. Nons Avenue, Carmarthen | Freehold | 95 m² | £54,000 (1999) |
| 26 St. Nons Avenue, Carmarthen | Freehold | 100 m² | £210,000 (2019) |