| 24 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Aug 2026 | £292,000 | Semi-detached | Freehold |
| 11 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Aug 2026 | £220,000 | Terraced | Freehold |
| 23 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Mar 2026 | £280,000 | Terraced | Freehold |
| 64 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Mar 2026 | £409,950 | Detached | Freehold |
| 52 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jan 2026 | £250,000 | Detached | Freehold |
| 31 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2025 | £222,500 | Semi-detached | Freehold |
| 21 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2025 | £255,000 | Semi-detached | Freehold |
| 68 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Sep 2025 | £405,000 | Detached | Freehold |
| 13 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jun 2025 | £217,000 | Terraced | Freehold |
| 8 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Mar 2025 | £280,000 | Semi-detached | Freehold |
| 37 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Feb 2025 | £210,000 | Terraced | Freehold |
| 40 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jan 2025 | £285,000 | Semi-detached | Freehold |
| 26 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Sep 2024 | £283,000 | Semi-detached | Freehold |
| 22 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Sep 2024 | £269,000 | Semi-detached | Freehold |
| 4 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Aug 2024 | £315,000 | Semi-detached | Freehold |
| 30 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Apr 2024 | £311,000 | Semi-detached | Freehold |
| 16 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Mar 2024 | £315,000 | Semi-detached | Freehold |
| 32 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Feb 2024 | £314,950 | Semi-detached | Freehold |
| 6 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Oct 2023 | £272,000 | Semi-detached | Freehold |
| 17 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Sep 2023 | £215,000 | Terraced | Freehold |
| 15 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jul 2023 | £202,500 | Terraced | Freehold |
| 29 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jul 2023 | £230,000 | Semi-detached | Freehold |
| 14 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jun 2023 | £275,000 | Semi-detached | Freehold |
| 54 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jun 2021 | £240,000 | Semi-detached | Freehold |
| 9 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Feb 2021 | £185,000 | Terraced | Freehold |
| 20 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2020 | £250,000 | Semi-detached | Freehold |
| 2 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2020 | £252,995 | Semi-detached | Freehold |
| 38 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2020 | £274,995 | Semi-detached | Freehold |
| 56 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Mar 2020 | £204,995 | Semi-detached | Freehold |
| 58 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Feb 2020 | £269,995 | Detached | Freehold |
| 36 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Feb 2020 | £300,000 | Detached | Freehold |
| 27 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jan 2020 | £207,000 | Terraced | Freehold |
| 60 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jan 2020 | £270,000 | Detached | Freehold |
| 25 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2019 | £204,000 | Terraced | Freehold |
| 28 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2019 | £217,995 | Semi-detached | Freehold |
| 12 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2019 | £217,995 | Semi-detached | Freehold |
| 18 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2019 | £250,000 | Semi-detached | Freehold |
| 34 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2019 | £300,000 | Detached | Freehold |
| 10 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Oct 2019 | £219,995 | Semi-detached | Freehold |
| 44 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Aug 2019 | £219,995 | Semi-detached | Freehold |
| 62 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Aug 2019 | £274,995 | Detached | Freehold |
| 1 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jul 2019 | £300,000 | Detached | Freehold |
| 70 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Jun 2019 | £300,000 | Detached | Freehold |
| 3 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | May 2019 | £289,995 | Detached | Freehold |
| 42 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Apr 2019 | £219,995 | Semi-detached | Freehold |
| 48 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £194,995 | Terraced | Freehold |
| 50 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £190,000 | Terraced | Freehold |
| 46 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £224,995 | Semi-detached | Freehold |
| 5 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £279,995 | Detached | Freehold |
| 41 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £155,000 | Terraced | Freehold |
| 43 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £162,495 | Terraced | Freehold |
| 66 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £299,995 | Detached | Freehold |
| 19 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £212,000 | Semi-detached | Freehold |
| 39 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Dec 2018 | £155,000 | Terraced | Freehold |
| 7 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Nov 2018 | £169,995 | Terraced | Freehold |
| 45 Heol Williams, Old St Mellons, Cardiff, CF3 6AQ | Oct 2018 | £284,995 | Detached | Freehold |