| 1 Grenfell Avenue, Gorseinon, Swansea | - | 90 m² | - |
| 2, Grenfell Avenue, Gorseinon, Swansea | - | 88 m² | - |
| 4, Grenfell Avenue, Gorseinon, Swansea | - | 86 m² | - |
| 5, Grenfell Avenue, Gorseinon, Swansea | - | 86 m² | - |
| 6, Grenfell Avenue, Gorseinon, Swansea | - | 88 m² | - |
| 10, Grenfell Avenue, Gorseinon, Swansea | - | 88 m² | - |
| 12 Grenfell Avenue, Gorseinon, Swansea | Freehold | 130 m² | £220,000 (2024) |
| 15, Grenfell Avenue, Gorseinon, Swansea | Freehold | 85 m² | £120,000 (2020) |
| 17, Grenfell Avenue, Gorseinon, Swansea | - | 88 m² | - |
| 18 Grenfell Avenue, Gorseinon, Swansea | Freehold | 84 m² | £90,000 (2021) |
| 20 Grenfell Avenue, Gorseinon, Swansea | - | 84 m² | - |
| 21, Grenfell Avenue, Gorseinon, Swansea | - | 87 m² | - |
| 22, Grenfell Avenue, Gorseinon, Swansea | - | 84 m² | - |
| 23, Grenfell Avenue, Gorseinon, Swansea | - | 84 m² | - |
| 24, Grenfell Avenue, Gorseinon, Swansea | - | 87 m² | - |
| 25 Grenfell Avenue, Gorseinon, Swansea | Freehold | 85 m² | £83,500 (2012) |
| 27, Grenfell Avenue, Gorseinon, Swansea | - | 88 m² | - |
| 28 Grenfell Avenue, Gorseinon, Swansea | Freehold | 85 m² | £107,000 (2020) |
| 29, Grenfell Avenue, Gorseinon, Swansea | - | 86 m² | - |
| 30, Grenfell Avenue, Gorseinon, Swansea | Freehold | 94 m² | £146,000 (2026) |
| 32, Grenfell Avenue, Gorseinon, Swansea | - | 84 m² | - |
| 35 Grenfell Avenue, Gorseinon, Swansea | Freehold | 85 m² | £147,000 (2022) |
| 36, Grenfell Avenue, Gorseinon, Swansea | Freehold | 78 m² | £153,000 (2024) |
| 37, Grenfell Avenue, Gorseinon, Swansea | - | 88 m² | - |
| 38, Grenfell Avenue, Gorseinon, Swansea | - | 84 m² | - |
| 40, Grenfell Avenue, Gorseinon, Swansea | Freehold | 85 m² | £68,000 (2007) |