| 22, Gladstone Road, Watford | Freehold | 110 m² | £475,000 (2016) |
| 24 Gladstone Road, Watford, Watford | Freehold | 90 m² | £210,000 (2006) |
| 26, Gladstone Road, Watford | - | 90 m² | - |
| 30 Gladstone Road, Watford | Freehold | 96 m² | £435,000 (2022) |
| 32 Gladstone Road, Watford | Freehold | 129 m² | £519,500 (2023) |
| 34, Gladstone Road, Watford | Freehold | 126 m² | £560,000 (2019) |
| 38, Gladstone Road, Watford | Freehold | 133 m² | £532,000 (2020) |
| 40 Gladstone Road, Watford | Freehold | 109 m² | £400,000 (2025) |
| 40A Gladstone Road, Watford | - | 62 m² | - |
| 40B Gladstone Road, Watford | - | 59 m² | - |
| 42 Gladstone Road, Watford | Freehold | 112 m² | £250,000 (2011) |
| 44 Gladstone Road, Watford | - | 102 m² | - |
| 46 Gladstone Road, Watford, Watford | Leasehold | 47 m² | £76,000 (2000) |
| 46A, Gladstone Road, Watford | Leasehold | 45 m² | £245,000 (2018) |
| 48, Gladstone Road, Watford | Freehold | 99 m² | £184,000 (2023) |
| 50 Gladstone Road, Watford | Freehold | 98 m² | £467,000 (2024) |
| 52 Gladstone Road, Watford | Freehold | 128 m² | £600,000 (2025) |
| 54 Gladstone Road, Watford | Freehold | 120 m² | £415,000 (2015) |
| 56 Gladstone Road, Watford | Freehold | 153 m² | £405,000 (2018) |
| 58 Gladstone Road, Watford | Leasehold | 56 m² | £315,000 (2023) |
| 58A Gladstone Road, Watford | Leasehold | 53 m² | £235,000 (2020) |
| 62 Gladstone Road, Watford | Leasehold | 39 m² | £38,750 (1996) |
| 64, Gladstone Road, Watford | Leasehold | 39 m² | £174,000 (2007) |
| 66, Gladstone Road, Watford | Freehold | 49 m² | £10,000 (2021) |
| 68 Gladstone Road, Watford | Leasehold | 47 m² | £106,750 (2003) |
| 70 Gladstone Road, Watford, Watford | Leasehold | 57 m² | £290,000 (2021) |
| 72A Gladstone Road, Watford | Leasehold | 58 m² | £270,000 (2022) |
| 72B Gladstone Road, Watford | Leasehold | 50 m² | £120,000 (2012) |
| 74 Gladstone Road, Watford | Leasehold | 66 m² | £227,500 (2013) |
| 76A, Gladstone Road, Watford | Leasehold | 48 m² | £136,320 (2011) |
| 76B, Gladstone Road, Watford | Leasehold | 35 m² | £215,000 (2023) |
| 84A, Gladstone Road, Watford | Leasehold | 101 m² | £263,000 (2015) |
| 84B, Gladstone Road, Watford | Leasehold | 65 m² | £323,000 (2025) |
| 86 Gladstone Road, Watford | Freehold | 169 m² | £725,000 (2023) |
| 88 Gladstone Road, Watford, Watford | - | 204 m² | - |
| 90 Gladstone Road, Watford, Watford | Freehold | 167 m² | £660,000 (2021) |
| First Floor Flat, 66 Gladstone Road, Watford | Leasehold | 47 m² | £225,000 (2021) |
| Flat 2, 80 Gladstone Road, Watford | Leasehold | 26 m² | £80,500 (2002) |
| Flat 3, 80, Gladstone Road, Watford | Leasehold | 26 m² | £145,000 (2023) |
| Flat 4, 80, Gladstone Road, Watford | Leasehold | 17 m² | £83,000 (2006) |
| Flat 5, 80, Gladstone Road, Watford | Leasehold | 26 m² | £73,000 (2001) |
| Ground Floor Flat, 66 Gladstone Road, Watford | Leasehold | 45 m² | £278,500 (2023) |
