| 43 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Oct 2025 | £299,995 | Terraced | Freehold |
| 4 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Oct 2025 | £429,995 | Detached | Freehold |
| 45 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Aug 2025 | £299,995 | Terraced | Freehold |
| 49 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £299,995 | Terraced | Freehold |
| 15 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £479,995 | Detached | Freehold |
| 9 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £375,000 | Detached | Freehold |
| 11 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £575,000 | Detached | Freehold |
| 47 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £299,995 | Terraced | Freehold |
| 14 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £299,995 | Terraced | Freehold |
| 16 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £299,995 | Terraced | Freehold |
| 20 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £299,995 | Terraced | Freehold |
| 18 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Jun 2025 | £299,995 | Terraced | Freehold |
| 26 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | May 2025 | £299,995 | Terraced | Freehold |
| 22 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | May 2025 | £299,995 | Terraced | Freehold |
| 24 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | May 2025 | £299,995 | Terraced | Freehold |
| 2 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Mar 2025 | £461,995 | Detached | Freehold |
| 61 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Mar 2024 | £389,995 | Semi-detached | Freehold |
| 44 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Mar 2024 | £892,990 | Other property | Freehold |
| 42 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Feb 2024 | £374,995 | Detached | Freehold |
| 77 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Feb 2024 | £374,995 | Detached | Freehold |
| 79 Heol Roberts, Old St Mellons, Cardiff, CF3 6BA | Dec 2023 | £469,995 | Detached | Freehold |