| 11A Castle Hill Avenue, Folkestone | Freehold | 83 m² | £125,000 (1997) |
| Basement, 13 Castle Hill Avenue, Folkestone | - | 100 m² | - |
| Basement, 15, Castle Hill Avenue, Folkestone | Leasehold | 52 m² | £210,000 (2018) |
| Basement, 17, Castle Hill Avenue, Folkestone | Leasehold | 145 m² | £285,000 (2017) |
| Flat 1, 7 Castle Hill Avenue, Folkestone | Leasehold | 81 m² | £201,500 (2024) |
| Flat 1, 9, Castle Hill Avenue, Folkestone | - | 66 m² | - |
| Flat 1, 11 Castle Hill Avenue, Folkestone | - | 58 m² | - |
| Flat 1, 15, Castle Hill Avenue, Folkestone | Leasehold | 66 m² | £212,000 (2017) |
| Flat 1, 17 Castle Hill Avenue, Folkestone | - | 97 m² | - |
| Flat 2, 3, Castle Hill Avenue, Folkestone | Leasehold | 78 m² | £145,000 (2018) |
| Flat 2, 7 Castle Hill Avenue, Folkestone | Leasehold | 74 m² | £290,000 (2023) |
| Flat 2, 9 Castle Hill Avenue, Folkestone, Folkestone | - | 71 m² | - |
| Flat 2, 11 Castle Hill Avenue, Folkestone | - | 61 m² | - |
| Flat 2, 15 Castle Hill Avenue, Folkestone | Leasehold | 66 m² | £210,000 (2025) |
| Flat 3, 3, Castle Hill Avenue, Folkestone | Leasehold | 74 m² | £347,500 (2022) |
| Flat 3, 7, Castle Hill Avenue, Folkestone | Leasehold | 75 m² | £97,500 (2017) |
| Flat 3, 9, Castle Hill Avenue, Folkestone | - | 152 m² | - |
| Flat 3, 11 Castle Hill Avenue, Folkestone | - | 70 m² | - |
| Flat 3, 13 Castle Hill Avenue, Folkestone | Leasehold | 69 m² | £160,000 (2022) |
| Flat 3, 15, Castle Hill Avenue, Folkestone | Leasehold | 153 m² | £300,000 (2025) |
| Flat 3, 17, Castle Hill Avenue, Folkestone | - | 75 m² | - |
| Flat 4, 5, Castle Hill Avenue, Folkestone | Leasehold | 111 m² | £93,950 (2003) |
| Flat 4, 7 Castle Hill Avenue, Folkestone | Leasehold | 63 m² | £110,000 (2005) |
| Flat 4, 11 Castle Hill Avenue, Folkestone | - | 52 m² | - |
| Flat 4, 13, Castle Hill Avenue, Folkestone | Leasehold | 46 m² | £85,000 (2019) |
| Flat 5, 13, Castle Hill Avenue, Folkestone | Leasehold | 86 m² | £250,000 (2021) |
| Flat A, 1 Castle Hill Avenue, Folkestone | Leasehold | 73 m² | £135,000 (2006) |
| Flat A, 5 Castle Hill Avenue, Folkestone | Leasehold | 85 m² | £147,000 (2017) |
| Flat B, 1 Castle Hill Avenue, Folkestone | Leasehold | 70 m² | £155,000 (2016) |
| Flat B, 5, Castle Hill Avenue, Folkestone | Leasehold | 81 m² | £220,000 (2018) |
| Flat C, 1 Castle Hill Avenue, Folkestone | Leasehold | 120 m² | £148,650 (2013) |
| Flat C, 5 Castle Hill Avenue, Folkestone | Leasehold | 69 m² | £104,000 (2006) |
| The Hall Flat, 17 Castle Hill Avenue, Folkestone | Leasehold | 193 m² | £355,000 (2022) |
