| 1, Cowper Road, Hemel Hempstead | Freehold | 210 m² | £595,000 (2014) |
| 2, Cowper Road, Hemel Hempstead | - | 93 m² | - |
| 3 Cowper Road, Hemel Hempstead | Freehold | 142 m² | £300,000 (2004) |
| 4, Cowper Road, Hemel Hempstead | Freehold | 141 m² | £130,000 (2007) |
| 4A Cowper Road, Hemel Hempstead | Freehold | 78 m² | £450,000 (2023) |
| 6, Cowper Road, Hemel Hempstead | Freehold | 94 m² | £500,000 (2021) |
| 7, Cowper Road, Hemel Hempstead | Freehold | 116 m² | £425,000 (2025) |
| 8, Cowper Road, Hemel Hempstead | Freehold | 80 m² | £157,500 (2009) |
| 10 Cowper Road, Hemel Hempstead | Freehold | 87 m² | £520,000 (2023) |
| 12 Cowper Road, Hemel Hempstead | Freehold | 198 m² | £775,000 (2015) |
| 13 Cowper Road, Hemel Hempstead | Freehold | 121 m² | £525,000 (2019) |
| 14, Cowper Road, Hemel Hempstead | Freehold | 206 m² | £265,000 (2005) |
| 15 Cowper Road, Hemel Hempstead | Freehold | 112 m² | £328,000 (2007) |
| 17, Cowper Road, Hemel Hempstead | Freehold | 109 m² | £430,000 (2025) |
| 19 Cowper Road, Hemel Hempstead | Freehold | 103 m² | £437,000 (2022) |
| 23, Cowper Road, Hemel Hempstead | Freehold | 107 m² | £525,000 (2025) |
| 24, Cowper Road, Hemel Hempstead | Freehold | 109 m² | £332,500 (2013) |
| 27 Cowper Road, Hemel Hempstead | Freehold | 115 m² | £593,000 (2025) |
| 28 Cowper Road, Hemel Hempstead | Freehold | 107 m² | £490,000 (2020) |
| 29 Cowper Road, Hemel Hempstead | Freehold | 107 m² | £550,000 (2024) |
| 30, Cowper Road, Hemel Hempstead | Freehold | 128 m² | £550,000 (2019) |
| 30A Cowper Road, Hemel Hempstead | Freehold | 113 m² | £610,000 (2022) |
| 31, Cowper Road, Hemel Hempstead | Freehold | 87 m² | £310,000 (2010) |
| 32 Cowper Road, Hemel Hempstead | Freehold | 55 m² | £450,000 (2025) |
| 32A, Cowper Road, Hemel Hempstead | Freehold | 88 m² | £435,000 (2022) |
| 33 Cowper Road, Hemel Hempstead | Freehold | 110 m² | £520,000 (2025) |
| 34 Cowper Road, Hemel Hempstead | Freehold | 59 m² | £380,000 (2018) |
| 36 Cowper Road, Hemel Hempstead | - | 59 m² | - |
| 37, Cowper Road, Hemel Hempstead | - | 76 m² | - |
| 39, Cowper Road, Hemel Hempstead | - | 62 m² | - |
| 41 Cowper Road, Hemel Hempstead | - | 64 m² | - |
| 42, Cowper Road, Hemel Hempstead | Freehold | 80 m² | £440,000 (2021) |
| 45 Cowper Road, Hemel Hempstead | - | 75 m² | - |
| 48, Cowper Road, Hemel Hempstead | Freehold | 88 m² | £515,000 (2019) |
| 50, Cowper Road, Hemel Hempstead | Freehold | 109 m² | £322,500 (2010) |
| 52, Cowper Road, Hemel Hempstead | Freehold | 69 m² | £285,000 (2011) |
| 54, Cowper Road, Hemel Hempstead | Freehold | 69 m² | £473,000 (2025) |
| 56, Cowper Road, Hemel Hempstead | Freehold | 61 m² | £375,000 (2018) |
| 58, Cowper Road, Hemel Hempstead | Freehold | 71 m² | £454,000 (2024) |
| 60, Cowper Road, Hemel Hempstead | Freehold | 61 m² | £222,500 (2013) |