| 1 St. Andrews Court, Newport Road, Old St. Mellons, Cardiff | Freehold | 136 m² | £432,500 (2022) |
| 2 St. Andrews Court, Newport Road, Old St. Mellons, Cardiff | Freehold | 136 m² | £345,000 (2019) |
| 3 St. Andrews Court, Newport Road, Old St. Mellons, Cardiff | Freehold | 136 m² | £350,000 (2019) |
| 4 St. Andrews Court, Newport Road, Old St. Mellons, Cardiff | Freehold | 136 m² | £365,000 (2018) |
| Arlington, Newport Road, Old St. Mellons, Cardiff | Leasehold | 140 m² | £210,250 (2006) |
| Brynhyfryd, Newport Road, Old St. Mellons, Cardiff | - | 320 m² | - |
| Craigmore, Newport Road, Old St. Mellons, Cardiff | - | 150 m² | - |
| Finchfield, Newport Road, Old St. Mellons, Cardiff | Freehold | 188 m² | £365,000 (2019) |
| Greenacres, Newport Road, Old St. Mellons, Cardiff | Freehold | 126 m² | £320,000 (2021) |
| Kessingland, Newport Road, Old St. Mellons, Cardiff | - | 134 m² | - |
| Melrose, Newport Road, Old St. Mellons, Cardiff | Freehold | 97 m² | £310,000 (2007) |
| Newlands, Newport Road, Old St. Mellons, Cardiff | Freehold | 167 m² | £342,000 (2014) |
| Newlyn, Newport Road, Old St. Mellons, Cardiff | Freehold | 134 m² | £434,000 (2025) |
| Stoneleigh, Newport Road, Old St. Mellons, Cardiff | Freehold | 138 m² | £300,000 (2018) |
| The Gatehouse, Newport Road, Old St. Mellons, Cardiff | - | 114 m² | - |
| Tredra, Newport Road, Old St. Mellons, Cardiff | - | 117 m² | - |
| Wayside, Newport Road, Old St. Mellons, Cardiff | Freehold | 170 m² | £315,000 (2015) |
| Wentloog, Newport Road, Old St. Mellons, Cardiff | Freehold | 114 m² | £146,000 (2001) |
