| 1, Westlea Avenue, Watford | Freehold | 94 m² | £277,000 (2007) |
| 3, Westlea Avenue, Watford | Freehold | 94 m² | £460,000 (2017) |
| 5 Westlea Avenue, Watford, Watford | - | 93 m² | - |
| 9, Westlea Avenue, Watford | Freehold | 112 m² | £407,500 (2015) |
| 13, Westlea Avenue, Watford | Freehold | 89 m² | £225,000 (2009) |
| 15, Westlea Avenue, Watford | Freehold | 94 m² | £280,000 (2012) |
| 17, Westlea Avenue, Watford | Freehold | 104 m² | £468,000 (2018) |
| 21 Westlea Avenue, Watford, Watford | Freehold | 77 m² | £445,000 (2021) |
| 23, Westlea Avenue, Watford | Freehold | 88 m² | £485,000 (2021) |
| 27, Westlea Avenue, Watford | Freehold | 69 m² | £316,000 (2014) |
| 33, Westlea Avenue, Watford | Freehold | 71 m² | £247,000 (2012) |
| 37, Westlea Avenue, Watford | Freehold | 105 m² | £250,000 (2007) |
| 39 Westlea Avenue, Watford, Watford | Freehold | 89 m² | £536,000 (2022) |
| 43, Westlea Avenue, Watford | - | 82 m² | - |
| 45, Westlea Avenue, Watford | Freehold | 31 m² | £249,950 (2006) |
| 47, Westlea Avenue, Watford | Freehold | 133 m² | £565,000 (2021) |
| 55 Westlea Avenue, Watford | Freehold | 79 m² | £520,000 (2022) |
| 57 Westlea Avenue, Watford, Watford | Freehold | 75 m² | £450,000 (2021) |
| 61, Westlea Avenue, Watford | Freehold | 98 m² | £440,000 (2019) |
| 65, Westlea Avenue, Watford | Freehold | 91 m² | £275,000 (2010) |
| 67, Westlea Avenue, Watford | Freehold | 92 m² | £300,000 (2012) |
| 69, Westlea Avenue, Watford | Freehold | 90 m² | £249,950 (2005) |
| 71 Westlea Avenue, Watford | Freehold | 104 m² | £220,000 (2005) |
| 73, Westlea Avenue, Watford | Freehold | 92 m² | £406,000 (2019) |
| 75, Westlea Avenue, Watford | Freehold | 162 m² | £712,500 (2026) |
| 77, Westlea Avenue, Watford | Freehold | 86 m² | £410,000 (2019) |
| 79 Westlea Avenue, Watford | Freehold | 105 m² | £640,000 (2025) |
