| 1, Kings Avenue, Watford | - | 148 m² | - |
| 11, Kings Avenue, Watford | Freehold | 105 m² | £395,000 (2020) |
| 13 Kings Avenue, Watford | Freehold | 77 m² | £182,000 (2006) |
| 15 Kings Avenue, Watford | - | 74 m² | - |
| 19, Kings Avenue, Watford | Freehold | 71 m² | £228,000 (2010) |
| 21, Kings Avenue, Watford | Freehold | 75 m² | £300,000 (2017) |
| 29, Kings Avenue, Watford | Freehold | 84 m² | £415,000 (2020) |
| 33, Kings Avenue, Watford | Freehold | 81 m² | £84,950 (1998) |
| 43 Kings Avenue, Watford | Freehold | 81 m² | £167,000 (2002) |
| 45 Kings Avenue, Watford | Freehold | 66 m² | £347,000 (2019) |
| 47 Kings Avenue, Watford, Watford | Freehold | 71 m² | £94,000 (1999) |
| 49A Kings Avenue, Watford | Leasehold | 55 m² | £265,000 (2018) |
| 51, Kings Avenue, Watford | Freehold | 93 m² | £162,000 (2002) |
| 57 Kings Avenue, Watford, Watford | Freehold | 82 m² | £422,600 (2022) |
| 59 Kings Avenue, Watford | Freehold | 84 m² | £215,000 (2011) |
| 63, Kings Avenue, Watford | Freehold | 74 m² | £375,000 (2024) |
| 65, Kings Avenue, Watford | Freehold | 90 m² | £392,000 (2023) |
| 67A, Kings Avenue, Watford | Leasehold | 38 m² | £124,950 (2003) |
| 71 Kings Avenue, Watford, Watford | Freehold | 84 m² | £97,500 (2001) |
| 73, Kings Avenue, Watford | Freehold | 81 m² | £325,000 (2018) |
| 75, Kings Avenue, Watford | Freehold | 85 m² | £71,000 (1998) |
| 77, Kings Avenue, Watford | Freehold | 126 m² | £195,000 (2010) |
| 79, Kings Avenue, Watford | Freehold | 81 m² | £450,000 (2024) |
| 81 Kings Avenue, Watford | Freehold | 82 m² | £257,000 (2014) |
| 83 Kings Avenue, Watford | Freehold | 150 m² | £330,000 (2017) |
| 85 Kings Avenue, Flat 5, Watford | Freehold | 16 m² | £415,000 (2025) |
| 87 Kings Avenue, Watford | - | 82 m² | - |
| 89, Kings Avenue, Watford | Freehold | 77 m² | £442,450 (2024) |
| 91, Kings Avenue, Watford | Freehold | 84 m² | £173,000 (2009) |
| 93, Kings Avenue, Watford | Freehold | 73 m² | £186,500 (2006) |
| 95, Kings Avenue, Watford | Freehold | 76 m² | £177,500 (2005) |
| 97, Kings Avenue, Watford | Freehold | 89 m² | £250,000 (2014) |
| 99 Kings Avenue, Watford | Freehold | 91 m² | £180,000 (2003) |
| 101 Kings Avenue, Watford | Freehold | 81 m² | £415,000 (2026) |
| 105 Kings Avenue, Watford, Watford | - | 87 m² | - |
| 107, Kings Avenue, Watford | Leasehold | 52 m² | £132,000 (2012) |
| 107A, Kings Avenue, Watford | - | 48 m² | - |
| 109, Kings Avenue, Watford | - | 29 m² | - |
| Ground Floor Flat, 17 Kings Avenue, Watford | - | 30 m² | - |
| Ground Floor Flat, 49 Kings Avenue, Watford | Leasehold | 40 m² | £160,000 (2025) |
