| 101, Princes Avenue, Watford | Freehold | 97 m² | £420,000 (2022) |
| 105, Princes Avenue, Watford | Freehold | 84 m² | £123,000 (2001) |
| 107, Princes Avenue, Watford | Freehold | 77 m² | £395,000 (2020) |
| 109 Princes Avenue, Watford, Watford | Freehold | 77 m² | £383,000 (2021) |
| 113, Princes Avenue, Watford | Freehold | 79 m² | £465,000 (2023) |
| 115, Princes Avenue, Watford | Freehold | 88 m² | £360,000 (2020) |
| 117 Princes Avenue, Watford, Watford | Freehold | 53 m² | £205,000 (2011) |
| 117A Princes Avenue, Watford, Watford | - | 72 m² | - |
| 121 Princes Avenue, Watford | Freehold | 100 m² | £430,000 (2021) |
| 125, Princes Avenue, Watford | Freehold | 82 m² | £228,000 (2011) |
| 129, Princes Avenue, Watford | Freehold | 89 m² | £280,000 (2013) |
| 131, Princes Avenue, Watford | Freehold | 91 m² | £240,000 (2011) |
| 133, Princes Avenue, Watford | Freehold | 86 m² | £235,000 (2008) |
| 141 Princes Avenue, Watford | Freehold | 83 m² | £367,500 (2023) |
| 151, Princes Avenue, Watford | Freehold | 71 m² | £88,000 (1999) |
| 153, Princes Avenue, Watford | Freehold | 82 m² | £420,000 (2020) |
| 155 Princes Avenue, Watford | Freehold | 72 m² | £210,000 (2013) |
| 157, Princes Avenue, Watford | Freehold | 71 m² | £245,500 (2013) |
| 161 Princes Avenue, Watford | Freehold | 72 m² | £330,000 (2025) |
| 165, Princes Avenue, Watford | Freehold | 70 m² | £165,000 (2010) |
| 167 Princes Avenue, Watford | Freehold | 52 m² | £185,000 (2009) |
