| 1, Castle View, Duffield, Belper | Freehold | 114 m² | £344,000 (2014) |
| 2 Castle View, Duffield, Belper | Freehold | 146 m² | £124,950 (1998) |
| 5, Castle View, Duffield, Belper | Freehold | 167 m² | £499,950 (2016) |
| 6, Castle View, Duffield, Belper | Freehold | 59 m² | £132,500 (2003) |
| 8, Castle View, Duffield, Belper | Freehold | 58 m² | £115,000 (2003) |
| 9 Castle View, Duffield, Belper | Freehold | 120 m² | £270,000 (2005) |
| 11, Castle View, Duffield, Belper | Freehold | 124 m² | £99,000 (1998) |
| 12 Castle View, Duffield, Belper | Freehold | 62 m² | £235,000 (2024) |
| 14 Castle View, Duffield, Belper | Freehold | 61 m² | £150,000 (2013) |
| 16 Castle View, Duffield, Belper | Freehold | 63 m² | £215,000 (2026) |
| 17 Castle View, Duffield, Belper | Freehold | 160 m² | £297,500 (2010) |
| 18, Castle View, Duffield, Belper | Freehold | 67 m² | £220,000 (2018) |
| 19, Castle View, Duffield, Belper | Freehold | 146 m² | £443,500 (2017) |
| 20, Castle View, Duffield, Belper | Freehold | 67 m² | £195,000 (2017) |
| 22, Castle View, Duffield, Belper | Freehold | 183 m² | £250,000 (2009) |
| 23 Castle View, Duffield, Belper | Freehold | 128 m² | £550,000 (2025) |
| 24, Castle View, Duffield, Belper | Freehold | 131 m² | £124,950 (1999) |