| 104, Harlech Gardens, Hounslow | - | 71 m² | - |
| 105, Harlech Gardens, Hounslow | Leasehold | 68 m² | £296,000 (2017) |
| 106, Harlech Gardens, Hounslow | - | 69 m² | - |
| 108, Harlech Gardens, Hounslow | - | 70 m² | - |
| 109, Harlech Gardens, Hounslow | - | 70 m² | - |
| 112, Harlech Gardens, Hounslow | - | 71 m² | - |
| 113, Harlech Gardens, Hounslow | - | 71 m² | - |
| 114, Harlech Gardens, Hounslow | - | 71 m² | - |
| 116 Harlech Gardens, Hounslow, Hounslow | - | 70 m² | - |
| 118, Harlech Gardens, Hounslow | - | 76 m² | - |
| 119, Harlech Gardens, Hounslow | - | 68 m² | - |
| 121, Harlech Gardens, Hounslow | - | 71 m² | - |
| 123 Harlech Gardens, Hounslow | Leasehold | 69 m² | £205,000 (2020) |
| 124, Harlech Gardens, Hounslow | - | 61 m² | - |
| 126 Harlech Gardens, Hounslow | Leasehold | 69 m² | £152,000 (2010) |
| 129, Harlech Gardens, Hounslow | - | 71 m² | - |
| 130, Harlech Gardens, Hounslow | Leasehold | 63 m² | £245,000 (2022) |
| 131 Harlech Gardens, Hounslow | Leasehold | 72 m² | £275,000 (2021) |
| 132 Harlech Gardens, Hounslow | - | 63 m² | - |
| 134, Harlech Gardens, Hounslow | - | 70 m² | - |
| 135, Harlech Gardens, Hounslow | Leasehold | 69 m² | £257,000 (2019) |
| 136 Harlech Gardens, Hounslow | Leasehold | 70 m² | £200,000 (2015) |
| 138, Harlech Gardens, Hounslow | - | 69 m² | - |
| 140, Harlech Gardens, Hounslow | - | 73 m² | - |
| 141 Harlech Gardens, Hounslow | Leasehold | 56 m² | £195,000 (2015) |
| 142 Harlech Gardens, Hounslow | - | 76 m² | - |
| 143, Harlech Gardens, Hounslow | - | 76 m² | - |
| 144 Harlech Gardens, Hounslow | Leasehold | 70 m² | £290,000 (2022) |
| 147 Harlech Gardens, Hounslow | - | 69 m² | - |
| 148, Harlech Gardens, Hounslow | - | 71 m² | - |
| 150, Harlech Gardens, Hounslow | - | 68 m² | - |
| 151, Harlech Gardens, Hounslow | - | 70 m² | - |
