| 1 Gould Close, Welham Green, North Mymms, Hatfield | - | 114 m² | - |
| 3 Gould Close, Welham Green, North Mymms, Hatfield | - | 41 m² | - |
| 4 Gould Close, Welham Green, North Mymms, Hatfield | - | 84 m² | - |
| 5 Gould Close, Welham Green, North Mymms, Hatfield | - | 41 m² | - |
| 7 Gould Close, Welham Green, North Mymms, Hatfield | - | 41 m² | - |
| 9 Gould Close, Welham Green, North Mymms, Hatfield | - | 41 m² | - |
| 10, Gould Close, Welham Green, North Mymms, Hatfield | Freehold | 91 m² | £249,999 (2007) |
| 11 Gould Close, Welham Green, Hatfield, Hatfield | Freehold | 92 m² | £512,000 (2022) |
| 13, Gould Close, Welham Green, North Mymms, Hatfield | Freehold | 93 m² | £350,000 (2016) |
| 15 Gould Close, Welham Green, North Mymms, Hatfield | - | 98 m² | - |
| 16 Gould Close, Welham Green, North Mymms, Hatfield | Leasehold | 93 m² | £105,000 (2003) |
| 18, Gould Close, Welham Green, North Mymms, Hatfield | Freehold | 99 m² | £230,000 (2017) |
| 19 Gould Close, Welham Green, North Mymms, Hatfield | Freehold | 79 m² | £580,000 (2026) |
| 20, Gould Close, Welham Green, North Mymms, Hatfield | Freehold | 84 m² | £532,500 (2023) |
| 27, Gould Close, Welham Green, North Mymms, Hatfield | Freehold | 108 m² | £265,000 (2014) |
| 29, Gould Close, Welham Green, North Mymms, Hatfield | Freehold | 97 m² | £245,000 (2009) |
| 31, Gould Close, Welham Green, North Mymms, Hatfield | Freehold | 98 m² | £235,000 (2012) |
| 33, Gould Close, Welham Green, North Mymms, Hatfield | Leasehold | 47 m² | £170,000 (2019) |
| 35, Gould Close, Welham Green, North Mymms, Hatfield | Leasehold | 42 m² | £122,500 (2004) |
| 37 Gould Close, Welham Green, North Mymms, Hatfield | - | 50 m² | - |
| 39 Gould Close, Welham Green, North Mymms, Hatfield | - | 50 m² | - |
| 43, Gould Close, Welham Green, North Mymms, Hatfield | - | 45 m² | - |
| 45 Gould Close, Welham Green, North Mymms, Hatfield | - | 55 m² | - |
| 47, Gould Close, Welham Green, North Mymms, Hatfield | - | 49 m² | - |
| 49 Gould Close, Welham Green, North Mymms, Hatfield | - | 38 m² | - |
| 51, Gould Close, Welham Green, North Mymms, Hatfield | - | 42 m² | - |
| 53 Gould Close, Welham Green, Hatfield | - | 48 m² | - |
| 55 Gould Close, Welham Green, North Mymms, Hatfield | Leasehold | 49 m² | £110,000 (2026) |