| 1 Avondale Road, Harrow | Freehold | 77 m² | £75,000 (1996) |
| 4 Avondale Road, Harrow | Freehold | 120 m² | £157,000 (2001) |
| 5 Avondale Road, Harrow, Harrow | Freehold | 80 m² | £248,000 (2010) |
| 6, Avondale Road, Harrow | - | 82 m² | - |
| 7 Avondale Road, Harrow | - | 95 m² | - |
| 8, Avondale Road, Harrow | Leasehold | 41 m² | £124,500 (2003) |
| 8A Avondale Road, Harrow | Leasehold | 37 m² | £126,000 (2012) |
| 9 Avondale Road, Harrow | - | 86 m² | - |
| 11, Avondale Road, Harrow | - | 92 m² | - |
| 12 Avondale Road, Harrow | - | 145 m² | - |
| 12A Avondale Road, Harrow | Freehold | 150 m² | £282,500 (2007) |
| 14, Avondale Road, Harrow | Freehold | 82 m² | £235,000 (2010) |
| 16 Avondale Road, Harrow | Freehold | 84 m² | £253,000 (2006) |
| 19 Avondale Road, Harrow, Harrow | Freehold | 160 m² | £500,000 (2026) |
| 20, Avondale Road, Harrow | Freehold | 103 m² | £520,000 (2021) |
| 21, Avondale Road, Harrow | Freehold | 72 m² | £295,000 (2008) |
| 21A Avondale Road, Harrow | Leasehold | 69 m² | £220,000 (2012) |
| 21B Avondale Road, Harrow | Leasehold | 73 m² | £355,000 (2019) |
| 22, Avondale Road, Harrow | Freehold | 100 m² | £450,000 (2020) |
| 23 Avondale Road, Harrow | Freehold | 85 m² | £250,000 (2010) |
| 24, Avondale Road, Harrow | Freehold | 82 m² | £365,000 (2015) |
| 24A Avondale Road, Harrow | Leasehold | 70 m² | £67,000 (1997) |
| 25 Avondale Road, Harrow | Freehold | 88 m² | £235,000 (2005) |
| 26, Avondale Road, Harrow | - | 115 m² | - |
| 27 Avondale Road, Harrow | Freehold | 82 m² | £500,000 (2025) |
| 28, Avondale Road, Harrow | - | 71 m² | - |
| 28A, Avondale Road, Harrow | - | 45 m² | - |
| 29 Avondale Road, Harrow | - | 162 m² | - |
| 30, Avondale Road, Harrow | - | 80 m² | - |
| 31A Avondale Road, Harrow | - | 39 m² | - |
| 34 Avondale Road, Harrow | - | 100 m² | - |
| 35 Avondale Road, Harrow | Freehold | 85 m² | £100,000 (2002) |
| 36 Avondale Road, Harrow | Freehold | 79 m² | £67,500 (1995) |
| 37, Avondale Road, Harrow | Freehold | 103 m² | £80,000 (1998) |
| 40 Avondale Road, Harrow | Freehold | 80 m² | £200,000 (2006) |
| 41 Avondale Road, Harrow | Freehold | 77 m² | £249,950 (2010) |
| 44, Avondale Road, Harrow | - | 149 m² | - |