| 16 North Western Avenue, Watford | Freehold | 116 m² | £485,000 (2025) |
| 18, North Western Avenue, Watford | Freehold | 130 m² | £525,000 (2023) |
| 20, North Western Avenue, Watford | Leasehold | 58 m² | £278,000 (2023) |
| 20A North Western Avenue, Watford | - | 51 m² | - |
| 24, North Western Avenue, Watford | Freehold | 113 m² | £330,000 (2010) |
| 28, North Western Avenue, Watford | Freehold | 104 m² | £510,000 (2015) |
| 30, North Western Avenue, Watford | Freehold | 98 m² | £300,000 (2004) |
| 34, North Western Avenue, Watford | Freehold | 90 m² | £500,000 (2025) |
| 36, North Western Avenue, Watford | Freehold | 91 m² | £430,000 (2020) |
| 38 North Western Avenue, Watford | - | 102 m² | - |
| 40 North Western Avenue, Watford | Freehold | 94 m² | £301,000 (2013) |
| 44 North Western Avenue, Watford | Freehold | 113 m² | £535,000 (2024) |
| 46A, North Western Avenue, Watford | Leasehold | 45 m² | £143,000 (2010) |
| 50, North Western Avenue, Watford | Freehold | 105 m² | £560,000 (2021) |
| 52, North Western Avenue, Watford | Freehold | 105 m² | £485,000 (2016) |
| 54, North Western Avenue, Watford | Freehold | 105 m² | £475,000 (2016) |
| 56, North Western Avenue, Watford | Freehold | 105 m² | £555,000 (2021) |
| 58, North Western Avenue, Watford | Freehold | 120 m² | £680,000 (2022) |
| 66 North Western Avenue, Watford | Freehold | 110 m² | £87,000 (1999) |
| 68, North Western Avenue, Watford | Freehold | 92 m² | £298,000 (2014) |