| 2 Cliff Street, Mountain Ash | Freehold | 88 m² | £142,000 (2026) |
| 3, Cliff Street, Mountain Ash | - | 80 m² | - |
| 3A, Cliff Street, Mountain Ash | Freehold | 81 m² | £73,000 (2011) |
| 6 Cliff Street, Mountain Ash | Freehold | 59 m² | £37,000 (2013) |
| 7, Cliff Street, Mountain Ash | Freehold | 69 m² | £60,000 (2023) |
| 9 Cliff Street, Mountain Ash | Freehold | 60 m² | £35,000 (2017) |
| 10, Cliff Street, Mountain Ash | - | 67 m² | - |
| 11 Cliff Street, Mountain Ash | Freehold | 86 m² | £110,000 (2026) |
| 12, Cliff Street, Mountain Ash | - | 60 m² | - |
| 14 Cliff Street, Mountain Ash | Freehold | 69 m² | £95,000 (2023) |
| 15 Cliff Street, Mountain Ash | Freehold | 58 m² | £103,000 (2026) |
| 16 Cliff Street | Freehold | 73 m² | £55,000 (2016) |
| 18, Cliff Street, Mountain Ash | Freehold | 52 m² | £76,500 (2007) |
| 19, Cliff Street, Mountain Ash | Freehold | 82 m² | £25,500 (1995) |
| 21 Cliff Street, Mountain Ash | - | 73 m² | - |
| 23 Cliff Street, Mountain Ash | Freehold | 59 m² | £28,800 (1997) |
| 24 Cliff Street, Mountain Ash | Freehold | 55 m² | £57,000 (2008) |
| 25, Cliff Street, Mountain Ash | Freehold | 59 m² | £58,000 (2017) |
| 28, Cliff Street, Mountain Ash | Freehold | 88 m² | £54,950 (2004) |
| 29 Cliff Street, Mountain Ash | Freehold | 62 m² | £120,000 (2025) |
| 30 Cliff Street, Mountain Ash | - | 84 m² | - |
| 36 Cliff Street, Mountain Ash | - | 113 m² | - |
| 39 Cliff Street, Mountain Ash | Freehold | 84 m² | £82,000 (2026) |