| 9, Southerndown Avenue, Mayals, Swansea | Freehold | 238 m² | £249,000 (1999) |
| 11 Southerndown Avenue, Mayals, Swansea | Freehold | 249 m² | £740,000 (2025) |
| 17, Southerndown Avenue, Mayals, Swansea | - | 178 m² | - |
| 19 Southerndown Avenue, Mayals, Swansea | - | 153 m² | - |
| 20 Southerndown Avenue, Mayals, Swansea | - | 196 m² | - |
| 21, Southerndown Avenue, Mayals, Swansea | - | 146 m² | - |
| 22 Southerndown Avenue, Mayals, Swansea | - | 168 m² | - |
| 24 Southerndown Avenue, Mayals, Swansea | Freehold | 139 m² | £250,000 (2003) |
| 29, Southerndown Avenue, Mayals, Swansea | Freehold | 104 m² | £225,000 (2016) |
| 30, Southerndown Avenue, Mayals, Swansea | Leasehold | 149 m² | £485,000 (2024) |
| 31, Southerndown Avenue, Mayals, Swansea | Freehold | 133 m² | £250,000 (2009) |
| 32, Southerndown Avenue, Mayals, Swansea | Freehold | 136 m² | £325,000 (2019) |
| 33, Southerndown Avenue, Mayals, Swansea | - | 90 m² | - |
| 34 Southerndown Avenue, Mayals, Swansea | Leasehold | 154 m² | £390,000 (2024) |
| 35 Southerndown Avenue, Mayals, Swansea | Freehold | 159 m² | £348,600 (2025) |
| 36, Southerndown Avenue, Mayals, Swansea | Freehold | 147 m² | £315,000 (2010) |
| 39, Southerndown Avenue, Mayals, Swansea | Freehold | 159 m² | £315,000 (2018) |
| 40, Southerndown Avenue, Mayals, Swansea | Freehold | 160 m² | £275,000 (2004) |
| 42, Southerndown Avenue, Mayals, Swansea | Freehold | 143 m² | £377,500 (2020) |
| 43, Southerndown Avenue, Mayals, Swansea | Freehold | 147 m² | £365,000 (2022) |
| 44, Southerndown Avenue, Mayals, Swansea | Freehold | 173 m² | £405,000 (2021) |
| 45 Southerndown Avenue, Mayals, Swansea | Leasehold | 233 m² | £320,000 (2018) |
| 47 Southerndown Avenue, Mayals, Swansea | Freehold | 181 m² | £219,000 (2002) |
| 49, Southerndown Avenue, Mayals, Swansea | Freehold | 179 m² | £315,000 (2016) |
| 50, Southerndown Avenue, Mayals, Swansea | Freehold | 98 m² | £425,000 (2026) |
| 51 Southerndown Avenue, Mayals, Swansea | Freehold | 180 m² | £300,000 (2011) |
| 53, Southerndown Avenue, Mayals, Swansea | Freehold | 159 m² | £312,000 (2017) |
| Coed Lan, Southerndown Avenue, Mayals, Swansea | Freehold | 296 m² | £655,000 (2018) |
| Greenwood Lee, Southerndown Avenue, Mayals, Swansea | Freehold | 173 m² | £640,000 (2025) |