| 1 Robert Key Drive, Mattishall, Dereham | Freehold | 114 m² | £250,000 (2018) |
| 2 Robert Key Drive, Mattishall, Dereham | Freehold | 151 m² | £174,000 (2014) |
| 3 Robert Key Drive, Mattishall, Dereham | Freehold | 78 m² | £267,500 (2025) |
| 4 Robert Key Drive, Mattishall, Dereham | Freehold | 71 m² | £247,500 (2023) |
| 5, Robert Key Drive, Mattishall, Dereham | Freehold | 65 m² | £200,000 (2019) |
| 6, Robert Key Drive, Mattishall, Dereham | Freehold | 72 m² | £222,800 (2019) |
| 7 Robert Key Drive, Mattishall, Dereham | Freehold | 69 m² | £260,000 (2023) |
| 8, Robert Key Drive, Mattishall, Dereham | Freehold | 73 m² | £195,000 (2015) |
| 9, Robert Key Drive, Mattishall, Dereham | Freehold | 86 m² | £225,000 (2019) |
| 10, Robert Key Drive, Mattishall, Dereham | Freehold | 74 m² | £200,000 (2019) |
| 11, Robert Key Drive, Mattishall, Dereham | Freehold | 73 m² | £215,000 (2019) |
| 12, Robert Key Drive, Mattishall, Dereham | Freehold | 72 m² | £149,000 (2013) |
| 13, Robert Key Drive, Mattishall, Dereham | Freehold | 113 m² | £295,000 (2020) |
| 14, Robert Key Drive, Mattishall, Dereham | - | 140 m² | - |
| 17, Robert Key Drive, Mattishall, Dereham | Freehold | 95 m² | £239,000 (2021) |
| 18, Robert Key Drive, Mattishall, Dereham | Freehold | 100 m² | £160,000 (2011) |
| 19 Robert Key Drive, Mattishall, Dereham | - | 87 m² | - |
| 20, Robert Key Drive, Mattishall, Dereham | - | 55 m² | - |
| 21 Robert Key Drive, Mattishall, Dereham | - | 69 m² | - |
| 23, Robert Key Drive, Mattishall, Dereham | Freehold | 83 m² | £250,000 (2020) |
| 24, Robert Key Drive, Mattishall, Dereham | Freehold | 179 m² | £300,000 (2017) |
