| 2, Clark Street, Treorchy | Freehold | 74 m² | £33,000 (2003) |
| 3, Clark Street, Treorchy | Freehold | 81 m² | £75,000 (2006) |
| 4, Clark Street, Treorchy | - | 105 m² | - |
| 5 Clark Street, Treorchy | Freehold | 93 m² | £135,000 (2024) |
| 8, Clark Street, Treorchy | Freehold | 98 m² | £49,000 (2001) |
| 9, Clark Street, Treorchy | Freehold | 104 m² | £95,000 (2009) |
| 10, Clark Street, Treorchy | - | 101 m² | - |
| 12, Clark Street, Treorchy | - | 107 m² | - |
| 13, Clark Street, Treorchy | Freehold | 79 m² | £64,500 (2012) |
| 14, Clark Street, Treorchy | Freehold | 89 m² | £97,500 (2010) |
| 16, Clark Street, Treorchy | Freehold | 90 m² | £110,000 (2021) |
| 18 Clark Street, Treorchy | Freehold | 105 m² | £150,000 (2025) |
| 19, Clark Street, Treorchy | Freehold | 101 m² | £113,000 (2018) |
| 22, Clark Street, Treorchy | Freehold | 95 m² | £88,000 (2009) |
| 26, Clark Street, Treorchy | - | 90 m² | - |
| 29, Clark Street, Treorchy | Freehold | 65 m² | £46,000 (1997) |
| 30, Clark Street, Treorchy | Freehold | 89 m² | £157,000 (2023) |
| 32 Clark Street, Treorchy | - | 87 m² | - |
| 33 Clark Street, Treorchy | Freehold | 91 m² | £75,000 (2009) |
| 34, Clark Street, Treorchy | - | 94 m² | - |
| 35, Clark Street, Treorchy | - | 93 m² | - |
| 36, Clark Street, Treorchy | Freehold | 100 m² | £45,500 (2003) |
| 41, Clark Street, Treorchy | Freehold | 100 m² | £101,500 (2019) |
| 42, Clark Street, Treorchy | Freehold | 100 m² | £124,000 (2018) |
| 43, Clark Street, Treorchy | Freehold | 102 m² | £111,500 (2019) |
| 44, Clark Street, Treorchy | Freehold | 92 m² | £110,000 (2019) |
| 45, Clark Street, Treorchy | Freehold | 95 m² | £130,000 (2025) |
| 46 Clark Street, Treorchy | Freehold | 84 m² | £85,000 (2015) |
| 48, Clark Street, Treorchy | - | 79 m² | - |
| 49, Clark Street, Treorchy | Freehold | 89 m² | £95,000 (2013) |
| 50 Clark Street, Treorchy, Treorchy | - | 100 m² | - |
| 52, Clark Street, Treorchy | Freehold | 95 m² | £93,500 (2017) |
| 53, Clark Street, Treorchy | Freehold | 75 m² | £77,000 (2016) |
| 55, Clark Street, Treorchy | Freehold | 110 m² | £40,000 (2001) |