| 1 The Dell, St. Mellons, Cardiff | Freehold | 51 m² | £125,000 (2023) |
| 2 The Dell, Old St Mellons, Cardiff, Cardiff | Freehold | 62 m² | £115,000 (2021) |
| 3 The Dell, St. Mellons, Cardiff | Freehold | 52 m² | £100,000 (2017) |
| 4, The Dell, St. Mellons, Cardiff | Freehold | 45 m² | £76,000 (2015) |
| 5, The Dell, St. Mellons, Cardiff | Freehold | 47 m² | £83,000 (2012) |
| 6 The Dell, St. Mellons, Cardiff | Freehold | 47 m² | £74,950 (2005) |
| 7 The Dell, St. Mellons, Cardiff | Freehold | 54 m² | £122,500 (2022) |
| 8 The Dell, St. Mellons, Cardiff | Freehold | 55 m² | £100,000 (2015) |
| 9, The Dell, St. Mellons, Cardiff | Freehold | 61 m² | £130,000 (2019) |
| 10 The Dell, Old St Mellons, Cardiff, Cardiff | Freehold | 55 m² | £160,000 (2023) |
| 11, The Dell, St. Mellons, Cardiff | Freehold | 56 m² | £155,000 (2022) |
| 12 The Dell, St. Mellons, Cardiff | Freehold | 55 m² | £110,000 (2007) |
| 13, The Dell, St. Mellons, Cardiff | Freehold | 55 m² | £60,000 (2002) |
| 14 The Dell, St. Mellons, Cardiff | Freehold | 55 m² | £27,500 (1997) |
| 16, The Dell, St. Mellons, Cardiff | Freehold | 51 m² | £112,000 (2020) |
| 17, The Dell, St. Mellons, Cardiff | Freehold | 60 m² | £118,000 (2019) |
| 18, The Dell, St. Mellons, Cardiff | - | 53 m² | - |
| 20 The Dell, St. Mellons, Cardiff | Freehold | 48 m² | £120,000 (2020) |
| 21, The Dell, St. Mellons, Cardiff | Freehold | 52 m² | £132,500 (2023) |
| 22 The Dell, St. Mellons, Cardiff | Freehold | 57 m² | £120,000 (2022) |
| 23 The Dell, St. Mellons, Cardiff | Freehold | 55 m² | £84,000 (2014) |
| 24, The Dell, St. Mellons, Cardiff | Freehold | 44 m² | £105,000 (2018) |
| 25 The Dell, Old St Mellons, Cardiff, Cardiff | Freehold | 50 m² | £31,995 (1997) |
| 27, The Dell, St. Mellons, Cardiff | Freehold | 51 m² | £115,000 (2021) |
| 28 The Dell, St. Mellons, Cardiff | Freehold | 56 m² | £150,000 (2023) |
| 29 The Dell, St. Mellons, Cardiff | Freehold | 73 m² | £150,000 (2025) |
| 30, The Dell, St. Mellons, Cardiff | Freehold | 52 m² | £70,000 (2010) |
| 31, The Dell, St. Mellons, Cardiff | Freehold | 65 m² | £85,000 (2014) |
| 32 The Dell, St. Mellons, Cardiff | Freehold | 51 m² | £120,000 (2023) |
| 36, The Dell, St. Mellons, Cardiff | - | 70 m² | - |
| 38, The Dell, St. Mellons, Cardiff | - | 85 m² | - |
| 39 The Dell, St. Mellons, Cardiff | - | 72 m² | - |