| 1 Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 117 m² | £685,000 (2021) |
| 3, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 62 m² | £235,000 (2003) |
| 4, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 102 m² | £532,500 (2019) |
| 5, Welham Manor, Welham Green, North Mymms, Hatfield | - | 54 m² | - |
| 7 Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 60 m² | £210,000 (2008) |
| 13 Welham Manor, Welham Green, North Mymms, Hatfield | Leasehold | 35 m² | £128,000 (2004) |
| 15 Welham Manor, Welham Green, North Mymms, Hatfield | Leasehold | 38 m² | £112,000 (2003) |
| 16, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 53 m² | £375,000 (2020) |
| 17, Welham Manor, Welham Green, North Mymms, Hatfield | Leasehold | 33 m² | £137,000 (2012) |
| 18 Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 65 m² | £118,000 (2000) |
| 19 Welham Manor, Welham Green, North Mymms, Hatfield | Leasehold | 36 m² | £190,000 (2016) |
| 21 Welham Manor, Welham Green, North Mymms, Hatfield | Leasehold | 36 m² | £197,000 (2024) |
| 22, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 54 m² | £380,000 (2019) |
| 23 Welham Manor, Welham Green, North Mymms, Hatfield | Leasehold | 35 m² | £127,000 (2006) |
| 24 Welham Manor, Welham Green, North Mymms, Hatfield | - | 54 m² | - |
| 26, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 71 m² | £285,000 (2014) |
| 27, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 55 m² | £377,000 (2019) |
| 28 Welham Manor, Welham Green, Hatfield, Hatfield | - | 56 m² | - |
| 30, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 86 m² | £485,000 (2021) |
| 31, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 56 m² | £242,000 (2013) |
| 33 Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 62 m² | £179,950 (2003) |
| 37 Welham Manor, Welham Green, Hatfield, Hatfield | Freehold | 85 m² | £330,000 (2014) |
| 38, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 81 m² | £249,000 (2003) |
| 39 Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 72 m² | £132,000 (1999) |
| 40 Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 81 m² | £460,000 (2023) |
| 41, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 70 m² | £235,000 (2011) |
| 45 Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 63 m² | £250,000 (2014) |
| 49, Welham Manor, Welham Green, North Mymms, Hatfield | Freehold | 72 m² | £481,000 (2020) |