| 15 Hartford Avenue, Harrow, Harrow | Freehold | 126 m² | £430,000 (2014) |
| 25 Hartford Avenue, Harrow | Freehold | 82 m² | £239,000 (2002) |
| 27, Hartford Avenue, Harrow | Freehold | 99 m² | £585,000 (2022) |
| 31 Hartford Avenue, Harrow | Freehold | 101 m² | £134,950 (1998) |
| 37, Hartford Avenue, Harrow | Freehold | 120 m² | £505,000 (2015) |
| 39 Hartford Avenue, Harrow | Freehold | 158 m² | £685,000 (2015) |
| 47, Hartford Avenue, Harrow | Freehold | 75 m² | £515,000 (2018) |
| 49, Hartford Avenue, Harrow | Freehold | 131 m² | £773,000 (2025) |
| 72, Hartford Avenue, Harrow | Freehold | 75 m² | £474,000 (2015) |
| 74, Hartford Avenue, Harrow | Freehold | 132 m² | £340,000 (2010) |
| 76, Hartford Avenue, Harrow | Freehold | 104 m² | £522,500 (2019) |
| 80, Hartford Avenue, Harrow | - | 107 m² | - |
| 86, Hartford Avenue, Harrow | Freehold | 94 m² | £168,000 (2001) |
| 92, Hartford Avenue, Harrow | Freehold | 84 m² | £470,000 (2020) |
| 94, Hartford Avenue, Harrow | Freehold | 74 m² | £282,000 (2010) |
| 96 Hartford Avenue, Harrow | Freehold | 76 m² | £568,000 (2016) |
| 100 Hartford Avenue, Harrow | - | 96 m² | - |
| 102, Hartford Avenue, Harrow | Freehold | 91 m² | £549,001 (2021) |
| 108 Hartford Avenue, Harrow | Freehold | 75 m² | £455,000 (2016) |
| Flat A, 43 Hartford Avenue, Harrow, Harrow | - | 59 m² | - |
| Flat B, 43 Hartford Avenue, Harrow, Harrow | - | 50 m² | - |
