| 3, Oak Tree Close, Hertford | - | 48 m² | - |
| 5 Oak Tree Close, Hertford | - | 55 m² | - |
| 6 Oak Tree Close, Hertford | - | 56 m² | - |
| 7 Oak Tree Close, Hertford | Freehold | 65 m² | £412,500 (2026) |
| 8, Oak Tree Close, Hertford | Freehold | 59 m² | £138,000 (2002) |
| 9, Oak Tree Close, Hertford | Freehold | 57 m² | £203,000 (2009) |
| 10, Oak Tree Close, Hertford | Freehold | 98 m² | £330,000 (2015) |
| 11 Oak Tree Close, Hertford | Leasehold | 56 m² | £282,000 (2025) |
| 12, Oak Tree Close, Hertford | Leasehold | 40 m² | £154,950 (2010) |
| 13 Oak Tree Close, Hertford | Freehold | 57 m² | £375,000 (2025) |
| 14, Oak Tree Close, Hertford | Freehold | 57 m² | £67,500 (1996) |
| 16, Oak Tree Close, Hertford | Leasehold | 42 m² | £125,000 (2011) |
| 19 Oak Tree Close, Hertford | - | 57 m² | - |
| 20 Oak Tree Close, Hertford Heath, Hertford Heath | Freehold | 57 m² | £335,000 (2023) |
| 21, Oak Tree Close, Hertford | Freehold | 57 m² | £312,000 (2018) |
| 24, Oak Tree Close, Hertford | Leasehold | 43 m² | £225,000 (2018) |
| 25, Oak Tree Close, Hertford | Leasehold | 43 m² | £145,000 (2014) |
| 26, Oak Tree Close, Hertford | Leasehold | 43 m² | £167,500 (2015) |
| 27, Oak Tree Close, Hertford | - | 43 m² | - |
| 30 Oak Tree Close, Hertford | Freehold | 58 m² | £70,500 (1996) |
| 33 Oak Tree Close, Hertford | Freehold | 56 m² | £238,000 (2014) |
| 34, Oak Tree Close, Hertford | Freehold | 58 m² | £370,000 (2022) |
| 37, Oak Tree Close, Hertford | Freehold | 45 m² | £175,000 (2011) |
| 38, Oak Tree Close, Hertford | - | 72 m² | - |
| 40 Oak Tree Close, Hertford Heath, Hertford Heath | Freehold | 56 m² | £318,000 (2021) |
| 41, Oak Tree Close, Hertford | Freehold | 69 m² | £305,000 (2018) |
| 42, Oak Tree Close, Hertford | Freehold | 64 m² | £340,000 (2021) |
| 44, Oak Tree Close, Hertford | Freehold | 72 m² | £217,500 (2011) |
| 45 Oak Tree Close, Hertford Heath, Hertford Heath | Freehold | 57 m² | £320,000 (2021) |
| 47, Oak Tree Close, Hertford | Freehold | 57 m² | £198,000 (2009) |
| 48 Oak Tree Close, Hertford Heath, Hertford Heath | Freehold | 57 m² | £400,000 (2023) |
| 49, Oak Tree Close, Hertford | Freehold | 66 m² | £330,000 (2021) |
| 51, Oak Tree Close, Hertford | Leasehold | 42 m² | £225,000 (2025) |