| 1 Holm Oak Park, Hagden Lane, Watford | Leasehold | 32 m² | £48,950 (1999) |
| 2, Holm Oak Park, Hagden Lane, Watford | Leasehold | 47 m² | £84,000 (2000) |
| 3 Holm Oak Park, Hagden Lane, Watford | Leasehold | 32 m² | £118,000 (2008) |
| 4 Holm Oak Park, Hagden Lane, Watford | Leasehold | 29 m² | £32,000 (1997) |
| 5 Holm Oak Park, Hagden Lane, Watford | Leasehold | 33 m² | £44,750 (1999) |
| 6, Holm Oak Park, Hagden Lane, Watford | Leasehold | 48 m² | £156,000 (2007) |
| 7, Holm Oak Park, Hagden Lane, Watford | Leasehold | 33 m² | £110,000 (2013) |
| 8 Holm Oak Park, Hagden Lane, Watford | - | 32 m² | - |
| 9, Holm Oak Park, Hagden Lane, Watford | - | 27 m² | - |
| 10 Holm Oak Park, Hagden Lane, Watford | Leasehold | 67 m² | £177,000 (2011) |
| 11, Holm Oak Park, Hagden Lane, Watford | Leasehold | 33 m² | £154,000 (2025) |
| 12 Holm Oak Park, Hagden Lane, Watford | Leasehold | 33 m² | £175,000 (2017) |
| 13 Holm Oak Park, Hagden Lane, Watford | Leasehold | 38 m² | £113,000 (2012) |
| 14 Holm Oak Park, Hagden Lane, Watford | Leasehold | 48 m² | £164,950 (2014) |
| 15 Holm Oak Park, Hagden Lane, Watford | Leasehold | 32 m² | £105,000 (2004) |
| 16 Holm Oak Park, Hagden Lane, Watford | Leasehold | 32 m² | £180,000 (2017) |
| 17, Holm Oak Park, Hagden Lane, Watford | Leasehold | 33 m² | £95,000 (2003) |
| 18 Holm Oak Park, Hagden Lane, Watford | Leasehold | 48 m² | £240,000 (2024) |
| 19, Holm Oak Park, Hagden Lane, Watford | Leasehold | 33 m² | £122,500 (2007) |
| 21, Holm Oak Park, Hagden Lane, Watford | Leasehold | 64 m² | £312,000 (2024) |
| 23, Holm Oak Park, Hagden Lane, Watford | Leasehold | 49 m² | £130,000 (2009) |
| 24 Holm Oak Park, Hagden Lane, Watford | - | 33 m² | - |
| 25 Holm Oak Park, Hagden Lane, Watford | Leasehold | 33 m² | £99,500 (2003) |
| 26 Holm Oak Park, Hagden Lane, Watford | Leasehold | 49 m² | £133,000 (2005) |
| 27, Holm Oak Park, Hagden Lane, Watford | Leasehold | 53 m² | £59,000 (1999) |
| 28 Holm Oak Park, Hagden Lane, Watford | Leasehold | 31 m² | £104,000 (2012) |
| 29, Holm Oak Park, Hagden Lane, Watford | Leasehold | 36 m² | £107,000 (2006) |
| 30 Holm Oak Park, Hagden Lane, Watford | Leasehold | 51 m² | £107,500 (2002) |
| 31 Holm Oak Park, Hagden Lane, Watford | Leasehold | 51 m² | £169,995 (2013) |
| 32, Holm Oak Park, Hagden Lane, Watford | Leasehold | 34 m² | £185,000 (2016) |
| 33, Holm Oak Park, Hagden Lane, Watford | Leasehold | 32 m² | £30,050 (1996) |
| 34 Holm Oak Park, Watford, Watford | Leasehold | 43 m² | £56,250 (1998) |
| 35, Holm Oak Park, Hagden Lane, Watford | Leasehold | 46 m² | £232,500 (2018) |
| 36, Holm Oak Park, Hagden Lane, Watford | Leasehold | 32 m² | £44,750 (1999) |
| 37, Holm Oak Park, Hagden Lane, Watford | Leasehold | 33 m² | £33,000 (1997) |
| 39, Holm Oak Park, Hagden Lane, Watford | Leasehold | 48 m² | £129,950 (2002) |
| 40, Holm Oak Park, Hagden Lane, Watford | Leasehold | 34 m² | £44,750 (1999) |