| 2 Belgrave Avenue, Watford | Freehold | 81 m² | £440,000 (2022) |
| 8 Belgrave Avenue, Watford | Freehold | 112 m² | £382,000 (2024) |
| 10 Belgrave Avenue, Watford | - | 128 m² | - |
| 14, Belgrave Avenue, Watford | Freehold | 81 m² | £100,950 (1999) |
| 16 Belgrave Avenue, Watford | Freehold | 90 m² | £233,000 (2008) |
| 18, Belgrave Avenue, Watford | Freehold | 78 m² | £365,000 (2016) |
| 34 Belgrave Avenue, Watford | Freehold | 88 m² | £310,000 (2015) |
| 36, Belgrave Avenue, Watford | Freehold | 79 m² | £204,000 (2006) |
| 40 Belgrave Avenue, Watford | - | 79 m² | - |
| 42 Belgrave Avenue, Watford | Freehold | 102 m² | £214,950 (2006) |
| 44 Belgrave Avenue, Watford | Freehold | 81 m² | £415,000 (2023) |
| 46 Belgrave Avenue, Watford | - | 78 m² | - |
| 48, Belgrave Avenue, Watford | Freehold | 79 m² | £390,000 (2020) |
| 54 Belgrave Avenue, Watford | Freehold | 99 m² | £545,000 (2025) |
| 56, Belgrave Avenue, Watford | Freehold | 81 m² | £425,000 (2021) |
| 58 Belgrave Avenue, Watford | Freehold | 77 m² | £209,500 (2006) |
| 60, Belgrave Avenue, Watford | Freehold | 79 m² | £412,000 (2021) |
| 62, Belgrave Avenue, Watford | Freehold | 65 m² | £441,000 (2022) |
| 64, Belgrave Avenue, Watford | Freehold | 78 m² | £242,000 (2012) |
| 66 Belgrave Avenue, Watford | Freehold | 79 m² | £450,000 (2026) |
| 70, Belgrave Avenue, Watford | Freehold | 79 m² | £380,000 (2019) |
| 72, Belgrave Avenue, Watford | Freehold | 78 m² | £405,000 (2021) |
| 74 Belgrave Avenue, Watford, Watford | Freehold | 83 m² | £385,000 (2016) |
| Unit 3, 52 Belgrave Avenue, Watford | Freehold | 14 m² | £405,000 (2026) |