| 2, Butler Avenue, Harrow | - | 173 m² | - |
| 6 Butler Avenue, Harrow | Leasehold | 88 m² | £261,500 (2006) |
| 6A Butler Avenue, Harrow | Leasehold | 74 m² | £367,500 (2024) |
| 8 Butler Avenue, Harrow | Freehold | 173 m² | £570,000 (2010) |
| 10, Butler Avenue, Harrow | Leasehold | 97 m² | £129,100 (1999) |
| 10A Butler Avenue, Harrow | Leasehold | 85 m² | £375,000 (2019) |
| 14A Butler Avenue, Harrow | Leasehold | 99 m² | £491,500 (2025) |
| 16, Butler Avenue, Harrow | Leasehold | 62 m² | £470,000 (2025) |
| 16A Butler Avenue, Harrow | - | 85 m² | - |
| 20, Butler Avenue, Harrow | Freehold | 174 m² | £309,950 (2000) |
| 24 Butler Avenue, Harrow | Freehold | 142 m² | £715,000 (2018) |
| 26 Butler Avenue, Harrow | Freehold | 152 m² | £651,750 (2017) |
| 28 Butler Avenue, Harrow, Harrow | Freehold | 134 m² | £415,000 (2009) |
| 30, Butler Avenue, Harrow | Freehold | 114 m² | £500,000 (2016) |
| 34, Butler Avenue, Harrow | Freehold | 115 m² | £700,000 (2021) |
| 38, Butler Avenue, Harrow | Freehold | 102 m² | £500,000 (2014) |
| First Floor Flat, 2B, Butler Avenue, Harrow | - | 89 m² | - |
| Flat 1, 12 Butler Avenue, Harrow | - | 24 m² | - |
| Flat 2, 12 Butler Avenue, Harrow | - | 13 m² | - |
| Flat 3, 12 Butler Avenue, Harrow | - | 12 m² | - |
| Flat 4, 12 Butler Avenue, Harrow | - | 24 m² | - |
| Flat 5, 12 Butler Avenue, Harrow | - | 16 m² | - |
| Flat 6, 12 Butler Avenue, Harrow | - | 14 m² | - |
| Flat 7, 12 Butler Avenue, Harrow | - | 16 m² | - |
| Flat 8, 12 Butler Avenue, Harrow | - | 11 m² | - |
| Flat 9, 12 Butler Avenue, Harrow | - | 16 m² | - |
| Flat 10, 12 Butler Avenue, Harrow | - | 16 m² | - |
| Ground Floor Flat, 2A, Butler Avenue, Harrow | - | 89 m² | - |
