| 1 The Avenue, Mountain Ash | - | 63 m² | - |
| 2 The Avenue, Mountain Ash | - | 69 m² | - |
| 3, The Avenue, Mountain Ash | - | 65 m² | - |
| 4, The Avenue, Mountain Ash | - | 75 m² | - |
| 5, The Avenue, Mountain Ash | Freehold | 65 m² | £45,000 (2005) |
| 6, The Avenue, Mountain Ash | - | 65 m² | - |
| 7 The Avenue, Mountain Ash | - | 63 m² | - |
| 8, The Avenue, Mountain Ash | - | 62 m² | - |
| 9 The Avenue, Mountain Ash | - | 63 m² | - |
| 10, The Avenue, Mountain Ash | - | 65 m² | - |
| 11 The Avenue, Mountain Ash | - | 66 m² | - |
| 12 The Avenue, Mountain Ash | - | 63 m² | - |
| 13, The Avenue, Mountain Ash | - | 67 m² | - |
| 14 The Avenue, Mountain Ash | - | 63 m² | - |
| 15, The Avenue, Mountain Ash | - | 67 m² | - |
| 16, The Avenue, Mountain Ash | Freehold | 63 m² | £95,000 (2025) |
| 17 The Avenue, Mountain Ash | - | 79 m² | - |
| 18 The Avenue, Mountain Ash | Freehold | 67 m² | £80,000 (2025) |
| 19, The Avenue, Mountain Ash | - | 67 m² | - |
| 20 The Avenue, Mountain Ash | - | 71 m² | - |
| 21, The Avenue, Mountain Ash | Freehold | 88 m² | £40,000 (2011) |
| 22 The Avenue, Mountain Ash | - | 94 m² | - |
| 23, The Avenue, Mountain Ash | - | 89 m² | - |
| 24, The Avenue, Mountain Ash | - | 91 m² | - |
| 25, The Avenue, Mountain Ash | Freehold | 85 m² | £63,000 (2019) |
| 27 The Avenue, Mountain Ash | - | 63 m² | - |
| 28, The Avenue, Mountain Ash | - | 67 m² | - |
| 29, The Avenue, Mountain Ash | - | 67 m² | - |
| 30 The Avenue, Mountain Ash | Freehold | 68 m² | £65,500 (2025) |
| 31, The Avenue, Mountain Ash | - | 67 m² | - |
| 32, The Avenue, Mountain Ash | - | 88 m² | - |
| 33, The Avenue, Mountain Ash | Freehold | 88 m² | £150,000 (2022) |
| 34, The Avenue, Mountain Ash | - | 86 m² | - |
| 35 The Avenue, Mountain Ash | - | 74 m² | - |
| 36, The Avenue, Mountain Ash | - | 89 m² | - |
| Calon Cefn Pennar, The Avenue, Mountain Ash | - | 236 m² | - |
| Glanpennar, The Avenue, Mountain Ash | Freehold | 191 m² | £370,000 (2022) |
| Penrhiwpennar House, The Avenue, Mountain Ash | Freehold | 139 m² | £195,000 (2012) |