| 1, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 103 m² | £147,950 (2016) |
| 2 Derwen Road, Alltwen, Swansea | Freehold | 100 m² | £205,000 (2022) |
| 3, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 124 m² | £85,000 (2009) |
| 4, Derwen Road, Alltwen, Pontardawe, Swansea | - | 87 m² | - |
| 5, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 112 m² | £149,000 (2015) |
| 7, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 84 m² | £12,000 (1999) |
| 9 Derwen Road, Alltwen, Pontardawe, Pontardawe | Freehold | 81 m² | £131,000 (2021) |
| 10, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 98 m² | £95,000 (2015) |
| 15, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 89 m² | £140,000 (2007) |
| 17, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 110 m² | £105,000 (2006) |
| 19, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 104 m² | £120,000 (2013) |
| 21, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 121 m² | £39,000 (2000) |
| 24 Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 86 m² | £167,995 (2024) |
| 25, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 87 m² | £180,000 (2019) |
| 26 Derwen Road, Alltwen, Swansea | - | 96 m² | - |
| 27 Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 126 m² | £147,500 (2014) |
| 28 Derwen Road, Alltwen, Pontardawe, Swansea | - | 84 m² | - |
| 29, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 94 m² | £60,000 (2020) |
| 30, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 76 m² | £85,000 (2011) |
| 31 Derwen Road, Alltwen, Pontardawe, Swansea | - | 79 m² | - |
| 32 Derwen Road, Alltwen, Pontardawe, Swansea | - | 80 m² | - |
| 34, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 106 m² | £335,000 (2024) |
| 35, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 128 m² | £249,995 (2014) |
| 36, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 144 m² | £362,500 (2025) |
| 38 Derwen Road, Alltwen, Pontardawe, Pontardawe | Freehold | 143 m² | £395,000 (2021) |
| 40 Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 158 m² | £87,500 (1998) |
| 41, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 155 m² | £365,000 (2017) |
| 44, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 126 m² | £299,995 (2019) |
| 46, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 191 m² | £290,000 (2016) |
| 47, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 325 m² | £355,000 (2007) |
| 48, Derwen Road, Alltwen, Pontardawe, Swansea | Freehold | 145 m² | £250,000 (2013) |
| 50, Derwen Road, Alltwen, Pontardawe, Swansea | - | 224 m² | - |
| Alltwen Isaf Farm, Derwen Road, Alltwen, Pontardawe | Freehold | 110 m² | £450,000 (2022) |
| Llechau Farm, Derwen Road, Alltwen, Pontardawe, Swansea | - | 140 m² | - |
| Pandy Farm, Derwen Road, Alltwen, Pontardawe, Swansea | - | 133 m² | - |
| Tyddyn Isaf Farm, Derwen Road, Alltwen, Pontardawe, Swansea | - | 185 m² | - |
