| 1 Cadwaladr Street, Mountain Ash | Freehold | 91 m² | £148,000 (2023) |
| 3 Cadwaladr Street, Mountain Ash | - | 98 m² | - |
| 6 Cadwaladr Street, Mountain Ash | - | 71 m² | - |
| 8, Cadwaladr Street, Mountain Ash | - | 82 m² | - |
| 9 Cadwaladr Street, Mountain Ash | Freehold | 78 m² | £115,000 (2025) |
| 12 Cadwaladr Street, Mountain Ash | Freehold | 71 m² | £145,000 (2024) |
| 13, Cadwaladr Street, Mountain Ash | Freehold | 82 m² | £54,000 (2010) |
| 16 Cadwaladr Street, Mountain Ash | Freehold | 79 m² | £80,000 (2024) |
| 22 Cadwaladr Street, Mountain Ash | - | 78 m² | - |
| 23, Cadwaladr Street, Mountain Ash | Freehold | 82 m² | £60,000 (2010) |
| 26, Cadwaladr Street, Mountain Ash | Freehold | 77 m² | £75,000 (2018) |
| 28 Cadwaladr Street, Mountain Ash | - | 80 m² | - |
| 29 Cadwaladr Street, Mountain Ash | - | 85 m² | - |
| 31 Cadwaladr Street, Mountain Ash, Mountain Ash | Freehold | 100 m² | £84,500 (2007) |
| 34, Cadwaladr Street, Mountain Ash | Freehold | 75 m² | £53,000 (2016) |
| 35 Cadwaladr Street, Mountain Ash | Freehold | 77 m² | £52,500 (2011) |
| 36, Cadwaladr Street, Mountain Ash | Freehold | 61 m² | £76,000 (2017) |
| 37 Cadwaladr Street, Mountain Ash | Freehold | 69 m² | £88,500 (2023) |
| Bali Hi, Cadwaladr Street, Mountain Ash | Freehold | 76 m² | £47,500 (2012) |
| Bryn Myfyr, Cadwaladr Street, Mountain Ash | Freehold | 139 m² | £192,000 (2018) |
| Parkside, Cadwaladr Street, Mountain Ash | Freehold | 158 m² | £189,995 (2016) |
| Pen-Y-Graig Villa, Cadwaladr Street, Mountain Ash | Freehold | 144 m² | £201,000 (2019) |
