| 2, Harriet Street, Aberdare | Freehold | 125 m² | £90,000 (2007) |
| 3, Harriet Street, Aberdare | Freehold | 70 m² | £72,000 (2017) |
| 4 Harriet Street, Aberdare | - | 66 m² | - |
| 5 Harriet Street, Aberdare | Freehold | 81 m² | £105,000 (2007) |
| 8 Harriet Street, Aberdare | Freehold | 79 m² | £155,000 (2026) |
| 11 Harriet Street, Aberdare | Freehold | 57 m² | £95,000 (2025) |
| 13 Harriet Street, Aberdare | Freehold | 86 m² | £149,000 (2023) |
| 15, Harriet Street, Aberdare | Freehold | 82 m² | £122,000 (2022) |
| 17A Harriet Street, Aberdare | Freehold | 154 m² | £55,000 (2004) |
| 18, Harriet Street, Aberdare | Freehold | 88 m² | £80,000 (2018) |
| 19 Harriet Street, Aberdare | Freehold | 77 m² | £105,000 (2022) |
| 20 Harriet Street, Aberdare | Freehold | 79 m² | £90,000 (2011) |
| 22 Harriet Street, Aberdare | Freehold | 94 m² | £82,000 (2022) |
| 23 Harriet Street, Aberdare | - | 81 m² | - |
| 24, Harriet Street, Aberdare | Freehold | 72 m² | £57,500 (2020) |
| 27 Harriet Street, Aberdare | Freehold | 79 m² | £10,000 (2000) |
| 28A, Harriet Street, Aberdare | Freehold | 103 m² | £120,000 (2024) |
| 29, Harriet Street, Aberdare | Freehold | 71 m² | £54,950 (2017) |
| 30 Harriet Street, Aberdare | Freehold | 108 m² | £120,000 (2020) |
| 31 Harriet Street, Aberdare | Freehold | 83 m² | £150,000 (2026) |
| 33, Harriet Street, Aberdare | Freehold | 109 m² | £107,000 (2011) |
| 34, Harriet Street, Aberdare | Freehold | 82 m² | £44,950 (2003) |
| 35, Harriet Street, Aberdare | Freehold | 72 m² | £140,000 (2025) |
| 36 Harriet Street, Trecynon, Aberdare, Aberdare | Freehold | 100 m² | £110,000 (2021) |
| 37 Harriet Street, Aberdare | Freehold | 63 m² | £143,000 (2024) |
| 37A Harriet Street, Aberdare | Freehold | 99 m² | £140,000 (2023) |
| 39, Harriet Street, Aberdare | Freehold | 101 m² | £29,950 (1998) |
| 40 Harriet Street, Aberdare | Freehold | 71 m² | £65,000 (2016) |
| 40A Harriet Street, Aberdare | Freehold | 91 m² | £87,500 (2025) |
| 40B, Harriet Street, Aberdare | Freehold | 92 m² | £97,000 (2021) |