| 1, The Swallows, Welwyn Garden City | Freehold | 51 m² | £295,000 (2019) |
| 5, The Swallows, Welwyn Garden City | Freehold | 51 m² | £177,500 (2010) |
| 7 The Swallows, Welwyn Garden City | Freehold | 51 m² | £320,000 (2025) |
| 11, The Swallows, Welwyn Garden City | Freehold | 52 m² | £99,950 (2000) |
| 13, The Swallows, Welwyn Garden City | Freehold | 67 m² | £250,000 (2013) |
| 15, The Swallows, Welwyn Garden City | Freehold | 64 m² | £250,000 (2013) |
| 19, The Swallows, Welwyn Garden City | Freehold | 92 m² | £188,000 (2003) |
| 21 The Swallows, Welwyn Garden City | Freehold | 65 m² | £430,000 (2024) |
| 27, The Swallows, Welwyn Garden City | Freehold | 57 m² | £98,000 (1998) |
| 33, The Swallows, Welwyn Garden City | Freehold | 65 m² | £202,000 (2004) |
| 35 The Swallows, Welwyn Garden City, Welwyn Garden City | Freehold | 109 m² | £284,000 (2010) |
| 37, The Swallows, Welwyn Garden City | Leasehold | 67 m² | £180,000 (2014) |
| 39, The Swallows, Welwyn Garden City | Leasehold | 56 m² | £52,950 (1996) |
| 45 The Swallows, Welwyn Garden City | Leasehold | 55 m² | £275,000 (2025) |
| 47 The Swallows, Welwyn Garden City | Leasehold | 57 m² | £257,500 (2024) |
| 49, The Swallows, Welwyn Garden City | Leasehold | 57 m² | £84,950 (2000) |
| 51, The Swallows, Welwyn Garden City | Leasehold | 57 m² | £123,000 (2003) |
| 53 The Swallows, Welwyn Garden City | Leasehold | 65 m² | £286,000 (2022) |
| 55, The Swallows, Welwyn Garden City | Leasehold | 56 m² | £285,000 (2023) |
| 57, The Swallows, Welwyn Garden City | - | 58 m² | - |
| 59 The Swallows, Welwyn Garden City | - | 61 m² | - |
| 61 The Swallows, Welwyn Garden City | Leasehold | 37 m² | £131,000 (2009) |
| 63, The Swallows, Welwyn Garden City | Leasehold | 40 m² | £173,000 (2020) |
| 65 The Swallows, Welwyn Garden City | Leasehold | 43 m² | £157,000 (2014) |
| 71, The Swallows, Welwyn Garden City | Leasehold | 38 m² | £120,000 (2005) |
| 73 The Swallows, Welwyn Garden City | Leasehold | 43 m² | £161,000 (2015) |