| 2, Arnold Street, Mountain Ash | - | 70 m² | - |
| 9, Arnold Street, Mountain Ash | - | 61 m² | - |
| 11, Arnold Street, Mountain Ash | Freehold | 93 m² | £90,000 (2020) |
| 12 Arnold Street, Mountain Ash | Freehold | 93 m² | £51,000 (2008) |
| 14, Arnold Street, Mountain Ash | Freehold | 65 m² | £83,000 (2019) |
| 15 Arnold Street, Mountain Ash | Freehold | 74 m² | £135,000 (2022) |
| 16, Arnold Street, Mountain Ash | Freehold | 89 m² | £37,000 (2000) |
| 17 Arnold Street, Caegarw, Mid Glamorgan | - | 59 m² | - |
| 18 Arnold Street, Mountain Ash | Freehold | 64 m² | £54,000 (2018) |
| 19 Arnold Street, Mountain Ash | - | 59 m² | - |
| 20 Arnold Street, Mountain Ash | Freehold | 71 m² | £70,500 (2021) |
| 21, Arnold Street, Mountain Ash | Freehold | 74 m² | £86,000 (2020) |
| 22, Arnold Street, Mountain Ash | Freehold | 74 m² | £82,000 (2016) |
| 23, Arnold Street, Mountain Ash | Freehold | 66 m² | £65,000 (2020) |
| 26, Arnold Street, Mountain Ash | Freehold | 74 m² | £138,500 (2026) |
| 27, Arnold Street, Mountain Ash | Freehold | 75 m² | £83,500 (2019) |
| 31 Arnold Street, Mountain Ash | - | 76 m² | - |
| 32, Arnold Street, Mountain Ash | Freehold | 74 m² | £55,000 (2020) |
| 33, Arnold Street, Mountain Ash | Freehold | 71 m² | £116,000 (2023) |
| 34, Arnold Street, Mountain Ash | Freehold | 74 m² | £60,500 (2014) |
| 36 Arnold Street, Mountain Ash | - | 75 m² | - |
| 37 Arnold Street, Mountain Ash | Freehold | 83 m² | £107,500 (2021) |
| 38, Arnold Street, Mountain Ash | Freehold | 101 m² | £82,500 (2005) |
| 39 Arnold Street, Mountain Ash | - | 103 m² | - |
| 44 Arnold Street, Mountain Ash | - | 72 m² | - |
| 45, Arnold Street, Mountain Ash | Freehold | 58 m² | £110,000 (2023) |
| 48 Arnold Street, Mountain Ash | Freehold | 86 m² | £70,000 (2007) |
| 49, Arnold Street, Mountain Ash | - | 58 m² | - |
| 50, Arnold Street, Mountain Ash | Freehold | 82 m² | £73,000 (2017) |
| 51, Arnold Street, Mountain Ash | Freehold | 82 m² | £86,000 (2007) |
| 53, Arnold Street, Mountain Ash | Freehold | 87 m² | £72,000 (2017) |
| 54 Arnold Street, Mountain Ash | Freehold | 73 m² | £82,600 (2025) |
| 55, Arnold Street, Mountain Ash | Freehold | 59 m² | £72,000 (2010) |
| 56 Arnold Street, Mountain Ash | - | 80 m² | - |
| 57 Arnold Street, Mountain Ash | Freehold | 71 m² | £90,000 (2023) |
| 58, Arnold Street, Mountain Ash | Freehold | 128 m² | £130,000 (2024) |
| 59 Arnold Street, Mountain Ash | Freehold | 88 m² | £140,000 (2025) |
| 61, Arnold Street, Mountain Ash | Freehold | 73 m² | £89,000 (2019) |
| 62 Arnold Street, Mountain Ash | Freehold | 102 m² | £110,000 (2023) |
| 63, Arnold Street, Mountain Ash | Leasehold | 101 m² | £42,000 (2002) |
| 64, Arnold Street, Mountain Ash | Freehold | 116 m² | £97,500 (2006) |