| 1 Seward Street, Penydarren, Merthyr Tydfil | - | 74 m² | - |
| 2 Seward Street, Penydarren, Merthyr Tydfil | Freehold | 109 m² | £75,000 (2013) |
| 3 Seward Street, Penydarren, Merthyr Tydfil | Freehold | 74 m² | £150,000 (2026) |
| 6 Seward Street, Penydarren, Merthyr Tydfil | - | 86 m² | - |
| 7 Seward Street, Penydarren, Merthyr Tydfil | - | 74 m² | - |
| 8 Seward Street, Penydarren, Merthyr Tydfil | Freehold | 85 m² | £115,000 (2025) |
| 9, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 85 m² | £97,950 (2015) |
| 10 Seward Street, Penydarren, Merthyr Tydfil | Freehold | 75 m² | £165,000 (2023) |
| 11 Seward Street, Penydarren, Merthyr Tydfil | Freehold | 76 m² | £160,000 (2024) |
| 12, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 72 m² | £75,000 (2012) |
| 13, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 71 m² | £32,000 (2003) |
| 14, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 94 m² | £34,000 (2002) |
| 15, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 85 m² | £135,000 (2021) |
| 17, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 77 m² | £89,000 (2015) |
| 18 Seward Street, Penydarren, Merthyr Tydfil | Leasehold | 80 m² | £88,000 (2024) |
| 19, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 76 m² | £25,500 (2000) |
| 21 Seward Street, Penydarren, Merthyr Tydfil | Freehold | 73 m² | £32,000 (2002) |
| 22, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 79 m² | £140,000 (2022) |
| 23 Seward Street, Penydarren, Merthyr Tydfil | Freehold | 82 m² | £155,000 (2023) |
| 25 Seward Street, Penydarren, Merthyr Tydfil | Freehold | 79 m² | £100,000 (2023) |
| 29, Seward Street, Penydarren, Merthyr Tydfil | Freehold | 107 m² | £17,500 (1996) |
| 31, Seward Street, Penydarren, Merthyr Tydfil | - | 79 m² | - |