| 3, Pen-Yr-Alley Avenue, Skewen, Neath | - | 85 m² | - |
| 8, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 92 m² | £110,000 (2012) |
| 9 Pen-Yr-Alley Avenue, Skewen, Neath | - | 86 m² | - |
| 10 Pen-Yr-Alley Avenue, Skewen, Neath | - | 97 m² | - |
| 12 Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 98 m² | £240,000 (2023) |
| 14A Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 89 m² | £155,000 (2012) |
| 14B, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 76 m² | £95,000 (2016) |
| 14C, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 74 m² | £95,000 (2012) |
| 14D, Pen-Yr-Alley Avenue, Skewen, Neath | - | 69 m² | - |
| 17, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 94 m² | £138,000 (2017) |
| 18, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 96 m² | £156,950 (2020) |
| 19 Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 89 m² | £85,000 (2009) |
| 21 Pen-Yr-Alley Avenue, Skewen, Neath | - | 84 m² | - |
| 24, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 108 m² | £71,000 (2019) |
| 26, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 93 m² | £95,000 (2019) |
| 28, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 99 m² | £150,000 (2020) |
| 29, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 96 m² | £148,500 (2007) |
| 30 Pen-Yr-Alley Avenue, Skewen, Neath | - | 87 m² | - |
| 31 Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 108 m² | £220,000 (2024) |
| 32, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 86 m² | £64,000 (2003) |
| 36, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 119 m² | £127,000 (2015) |
| 37, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 93 m² | £136,000 (2018) |
| 38 Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 109 m² | £127,500 (2021) |
| 40, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 93 m² | £88,000 (2018) |
| 41, Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 118 m² | £110,000 (2011) |
| 43 Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 90 m² | £208,000 (2024) |
| 44, Pen-Yr-Alley Avenue, Skewen, Neath | - | 88 m² | - |
| 48 Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 97 m² | £190,000 (2026) |
| 49 Pen-Yr-Alley Avenue, Skewen, Neath | - | 75 m² | - |
| 51, Pen-Yr-Alley Avenue, Skewen, Neath | - | 77 m² | - |
| 53 Pen-Yr-Alley Avenue, Skewen, Neath | Freehold | 79 m² | £90,000 (2022) |