| 1 Washington Avenue, Hemel Hempstead | Freehold | 116 m² | £214,950 (2014) |
| 2 Washington Avenue, Hemel Hempstead | - | 116 m² | - |
| 3 Washington Avenue, Hemel Hempstead | Freehold | 118 m² | £298,000 (2015) |
| 4, Washington Avenue, Hemel Hempstead | Freehold | 111 m² | £167,000 (2011) |
| 6, Washington Avenue, Hemel Hempstead | Freehold | 115 m² | £235,000 (2014) |
| 7 Washington Avenue, Hemel Hempstead | Freehold | 106 m² | £140,000 (2009) |
| 8 Washington Avenue, Hemel Hempstead | Freehold | 101 m² | £45,750 (1996) |
| 9, Washington Avenue, Hemel Hempstead | Freehold | 128 m² | £212,500 (2013) |
| 10, Washington Avenue, Hemel Hempstead | Freehold | 67 m² | £166,000 (2006) |
| 10A, Washington Avenue, Hemel Hempstead | - | 30 m² | - |
| 12 Washington Avenue, Hemel Hempstead | Freehold | 136 m² | £320,000 (2025) |
| 13, Washington Avenue, Hemel Hempstead | Freehold | 121 m² | £108,000 (2002) |
| 14 Washington Avenue, Hemel Hempstead | Freehold | 103 m² | £257,750 (2024) |
| 18 Washington Avenue, Hemel Hempstead | - | 98 m² | - |
| 20, Washington Avenue, Hemel Hempstead | - | 102 m² | - |
| 22, Washington Avenue, Hemel Hempstead | Freehold | 76 m² | £172,500 (2008) |
| 22A, Washington Avenue, Hemel Hempstead | - | 29 m² | - |
| 23, Washington Avenue, Hemel Hempstead | Freehold | 104 m² | £278,500 (2018) |
| 24, Washington Avenue, Hemel Hempstead | Freehold | 76 m² | £190,000 (2008) |
| 24A, Washington Avenue, Hemel Hempstead | - | 38 m² | - |
| 25 Washington Avenue, Hemel Hempstead | Leasehold | 77 m² | £175,000 (2025) |
| 25A Washington Avenue, Hemel Hempstead | - | 39 m² | - |
| 26 Washington Avenue, Hemel Hempstead | Freehold | 113 m² | £280,000 (2017) |
| 28 Washington Avenue, Hemel Hempstead | Freehold | 76 m² | £170,000 (2006) |
| 28A Washington Avenue, Hemel Hempstead | - | 32 m² | - |