| 3 Mostyn Square, Llanishen, Cardiff | Freehold | 116 m² | £338,000 (2025) |
| 4 Mostyn Square, Llanishen, Cardiff, Cardiff | Freehold | 103 m² | £265,000 (2021) |
| 5, Mostyn Square, Llanishen, Cardiff | Freehold | 106 m² | £347,000 (2023) |
| 6, Mostyn Square, Llanishen, Cardiff | Freehold | 100 m² | £265,000 (2021) |
| 11, Mostyn Square, Llanishen, Cardiff | Freehold | 103 m² | £224,000 (2014) |
| 12, Mostyn Square, Llanishen, Cardiff | Freehold | 103 m² | £226,500 (2017) |
| 14, Mostyn Square, Llanishen, Cardiff | Freehold | 101 m² | £245,000 (2018) |
| 15 Mostyn Square, Llanishen, Cardiff | Freehold | 119 m² | £360,000 (2022) |
| 16 Mostyn Square, Llanishen, Cardiff | Freehold | 124 m² | £372,500 (2024) |
| 19, Mostyn Square, Llanishen, Cardiff | Freehold | 103 m² | £217,000 (2013) |
| 20, Mostyn Square, Llanishen, Cardiff | - | 133 m² | - |
| 21, Mostyn Square, Llanishen, Cardiff | Freehold | 104 m² | £215,000 (2012) |
| 22, Mostyn Square, Llanishen, Cardiff | - | 133 m² | - |
| 24, Mostyn Square, Llanishen, Cardiff | - | 109 m² | - |
| 25, Mostyn Square, Llanishen, Cardiff | - | 51 m² | - |
| 26, Mostyn Square, Llanishen, Cardiff | - | 135 m² | - |
| 27 Mostyn Square, Llanishen, Cardiff | Freehold | 134 m² | £288,000 (2010) |
| 28, Mostyn Square, Llanishen, Cardiff | - | 134 m² | - |
| 29, Mostyn Square, Llanishen, Cardiff | Freehold | 109 m² | £247,000 (2017) |
| 30, Mostyn Square, Llanishen, Cardiff | - | 134 m² | - |
| 31 Mostyn Square, Llanishen, Cardiff | Freehold | 37 m² | £218,000 (2014) |
| 32, Mostyn Square, Llanishen, Cardiff | - | 133 m² | - |
| 33, Mostyn Square, Llanishen, Cardiff | Freehold | 103 m² | £215,000 (2013) |
| 34, Mostyn Square, Llanishen, Cardiff | - | 133 m² | - |
| 35 Mostyn Square, Llanishen, Cardiff | Freehold | 121 m² | £390,000 (2025) |
| 36, Mostyn Square, Llanishen, Cardiff | - | 133 m² | - |
| 37 Mostyn Square, Llanishen, Cardiff | Freehold | 37 m² | £239,950 (2015) |
| 38, Mostyn Square, Llanishen, Cardiff | - | 107 m² | - |
| 39, Mostyn Square, Square, Cardiff | Freehold | 37 m² | £207,000 (2009) |
| 41 Mostyn Square, Llanishen, Cardiff | Freehold | 103 m² | £365,000 (2025) |
| 43 Mostyn Square, Llanishen, Cardiff | Freehold | 37 m² | £200,000 (2009) |
| 45 Mostyn Square, Llanishen, Cardiff | Freehold | 68 m² | £240,000 (2009) |