| 51, Sefton Avenue, Harrow | Freehold | 66 m² | £490,000 (2020) |
| 53, Sefton Avenue, Harrow | Freehold | 107 m² | £115,000 (1999) |
| 55, Sefton Avenue, Harrow | - | 94 m² | - |
| 57, Sefton Avenue, Harrow | Freehold | 76 m² | £425,000 (2016) |
| 61 Sefton Avenue, Harrow | Freehold | 80 m² | £542,000 (2023) |
| 67 Sefton Avenue, Harrow | Freehold | 99 m² | £224,000 (2006) |
| 69 Sefton Avenue, Harrow | Freehold | 91 m² | £560,000 (2024) |
| 71 Sefton Avenue, Harrow | Freehold | 85 m² | £515,000 (2022) |
| 73 Sefton Avenue, Harrow | Freehold | 65 m² | £400,000 (2020) |
| 75 Sefton Avenue, Harrow | Freehold | 82 m² | £265,000 (2010) |
| 77, Sefton Avenue, Harrow | Freehold | 74 m² | £250,000 (2012) |
| 79, Sefton Avenue, Harrow | Freehold | 150 m² | £610,000 (2026) |
| 89 Sefton Avenue, Harrow | Leasehold | 68 m² | £187,000 (2012) |
| 91 Sefton Avenue, Harrow | Leasehold | 67 m² | £326,000 (2023) |
| 93 Sefton Avenue, Harrow | - | 68 m² | - |
| 95, Sefton Avenue, Harrow | Leasehold | 77 m² | £205,000 (2010) |
| 97, Sefton Avenue, Harrow | Leasehold | 65 m² | £150,000 (2011) |
| 101, Sefton Avenue, Harrow | - | 69 m² | - |
| 103, Sefton Avenue, Harrow | - | 71 m² | - |
| 105, Sefton Avenue, Harrow | Leasehold | 69 m² | £320,000 (2023) |
| 107 Sefton Avenue, Harrow | Leasehold | 63 m² | £175,000 (2010) |
| 113, Sefton Avenue, Harrow | Leasehold | 65 m² | £300,000 (2017) |
| 115, Sefton Avenue, Harrow | Leasehold | 64 m² | £325,000 (2023) |
| 117 Sefton Avenue, Harrow, Harrow | Leasehold | 63 m² | £66,500 (1999) |
| 123, Sefton Avenue, Harrow | - | 67 m² | - |
| 125 Sefton Avenue, Harrow | - | 55 m² | - |
| 127 Sefton Avenue, Harrow | Leasehold | 70 m² | £249,999 (2014) |
| 129, Sefton Avenue, Harrow | - | 47 m² | - |
| 131 Sefton Avenue, Harrow | Leasehold | 47 m² | £43,000 (1997) |
| 133, Sefton Avenue, Harrow | - | 48 m² | - |
| 135 Sefton Avenue, Harrow | - | 49 m² | - |
| 137 Sefton Avenue, Harrow | Leasehold | 38 m² | £114,950 (2002) |
| 139 Sefton Avenue, Harrow | - | 47 m² | - |
