| 2 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 69 m² | £90,000 (2025) |
| 3, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 70 m² | £246,000 (2017) |
| 4, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 66 m² | £220,000 (2021) |
| 5 Heathdene Manor, Grandfield Avenue, Watford, Watford | Leasehold | 44 m² | £100,000 (2024) |
| 6, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 68 m² | £255,000 (2017) |
| 7, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 79 m² | £215,000 (2022) |
| 8, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 48 m² | £159,995 (2018) |
| 9 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 45 m² | £135,000 (2019) |
| 10 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 47 m² | £135,000 (2016) |
| 11, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 44 m² | £131,000 (2017) |
| 12, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 56 m² | £227,000 (2017) |
| 14 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 44 m² | £102,500 (2025) |
| 16 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 67 m² | £110,000 (2026) |
| 17 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 64 m² | £110,000 (2025) |
| 18 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 44 m² | £107,000 (2015) |
| 19, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 66 m² | £205,000 (2021) |
| 20, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 78 m² | £185,000 (2014) |
| 21, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 45 m² | £95,000 (2011) |
| 22 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 45 m² | £95,000 (2026) |
| 23, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 71 m² | £199,950 (2016) |
| 24, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 44 m² | £115,000 (2020) |
| 25 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 56 m² | £112,000 (2026) |
| 26 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 42 m² | £100,000 (2012) |
| 27, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 44 m² | £92,000 (2025) |
| 28, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 66 m² | £165,000 (2022) |
| 29, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 65 m² | £200,000 (2016) |
| 30 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 44 m² | £101,000 (2014) |
| 31 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 72 m² | £235,000 (2016) |
| 33 Heathdene Manor, Grandfield Avenue, Watford, Watford | Leasehold | 47 m² | £95,000 (2023) |
| 34, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 43 m² | £151,000 (2017) |
| 35 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 64 m² | £100,000 (2023) |
| 36 Heathdene Manor, Grandfield Avenue, Watford, Watford | Leasehold | 44 m² | £120,000 (2021) |
| 37 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 44 m² | £110,000 (2025) |
| 38, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 45 m² | £98,000 (2019) |
| 39 Heathdene Manor, Grandfield Avenue, Watford | - | 65 m² | - |
| 40, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 63 m² | £105,000 (2024) |
| 41, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 44 m² | £93,000 (2020) |
| 42 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 62 m² | £95,000 (2024) |
| 43, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 78 m² | £198,000 (2015) |
| 44 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 69 m² | £74,950 (1996) |
| 45 Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 86 m² | £105,000 (2023) |
| 46 Heathdene Manor, Grandfield Avenue, Watford, Watford | Leasehold | 57 m² | £170,000 (2012) |
| 47, Heathdene Manor, Grandfield Avenue, Watford | Leasehold | 60 m² | £140,000 (2009) |
