| 2 Haldens, Welwyn Garden City | - | 34 m² | - |
| 4 Haldens, Welwyn Garden City | - | 32 m² | - |
| 6 Haldens, Welwyn Garden City | - | 34 m² | - |
| 8 Haldens, Welwyn Garden City | - | 29 m² | - |
| 10, Haldens, Welwyn Garden City | - | 48 m² | - |
| 12 Haldens, Welwyn Garden City | Leasehold | 45 m² | £125,000 (2014) |
| 14 Haldens, Welwyn Garden City | - | 48 m² | - |
| 16 Haldens, Welwyn Garden City | - | 39 m² | - |
| 20 Haldens, Welwyn Garden City | - | 51 m² | - |
| 22, Haldens, Welwyn Garden City | - | 51 m² | - |
| 24 Haldens, Welwyn Garden City | - | 39 m² | - |
| 26, Haldens, Welwyn Garden City | Leasehold | 53 m² | £184,500 (2020) |
| 28, Haldens, Welwyn Garden City | - | 43 m² | - |
| 30, Haldens, Welwyn Garden City | - | 52 m² | - |
| 32, Haldens, Welwyn Garden City | Leasehold | 44 m² | £64,500 (2000) |
| 34, Haldens, Welwyn Garden City | Freehold | 91 m² | £250,000 (2013) |
| 36, Haldens, Welwyn Garden City | Freehold | 91 m² | £311,000 (2019) |
| 38 Haldens, Welwyn Garden City | - | 85 m² | - |
| 44 Haldens, Welwyn Garden City | Freehold | 76 m² | £385,000 (2023) |
| 48 Haldens, Welwyn Garden City | - | 83 m² | - |
| 50 Haldens, Welwyn Garden City | - | 62 m² | - |
| 54 Haldens, Welwyn Garden City | Freehold | 93 m² | £368,000 (2022) |
| 58, Haldens, Welwyn Garden City | Freehold | 109 m² | £130,000 (2006) |
| 60, Haldens, Welwyn Garden City | Freehold | 80 m² | £210,000 (2012) |
| 62 Haldens, Welwyn Garden City | - | 85 m² | - |
| 64 Haldens, Welwyn Garden City | Freehold | 85 m² | £285,000 (2016) |
| 66 Haldens, Welwyn Garden City | Freehold | 78 m² | £365,000 (2025) |