| 55, Swift Close, Letchworth Garden City | Leasehold | 42 m² | £85,000 (2006) |
| 56, Swift Close, Letchworth Garden City | Leasehold | 42 m² | £90,000 (2006) |
| 57 Swift Close, Letchworth Garden City | Freehold | 56 m² | £168,000 (2014) |
| 59, Swift Close, Letchworth Garden City | Freehold | 55 m² | £240,000 (2019) |
| 60, Swift Close, Letchworth Garden City | - | 27 m² | - |
| 60A Swift Close, Letchworth Garden City | Leasehold | 27 m² | £145,000 (2023) |
| 61, Swift Close, Letchworth Garden City | Leasehold | 34 m² | £36,000 (2000) |
| 61A Swift Close, Letchworth Garden City | Leasehold | 27 m² | £65,000 (2003) |
| 62, Swift Close, Letchworth Garden City | Freehold | 45 m² | £185,000 (2016) |
| 63 Swift Close, Letchworth Garden City, Letchworth Garden City | Freehold | 44 m² | £52,500 (2000) |
| 64, Swift Close, Letchworth Garden City | - | 55 m² | - |
| 65 Swift Close, Letchworth Garden City | Freehold | 44 m² | £255,000 (2023) |
| 67 Swift Close, Letchworth Garden City | Freehold | 65 m² | £370,000 (2025) |
| 69, Swift Close, Letchworth Garden City | Freehold | 55 m² | £285,000 (2025) |
| 70 Swift Close, Letchworth Garden City | Freehold | 55 m² | £287,500 (2026) |
| 71, Swift Close, Letchworth Garden City | Freehold | 55 m² | £135,000 (2006) |
| 72 Swift Close, Letchworth Garden City, Letchworth Garden City | - | 26 m² | - |
| 72A, Swift Close, Letchworth Garden City | Leasehold | 27 m² | £127,500 (2022) |
| 73, Swift Close, Letchworth Garden City | Leasehold | 26 m² | £89,000 (2015) |
| 73A Swift Close, Letchworth Garden City | Leasehold | 27 m² | £125,500 (2022) |
| 74 Swift Close, Letchworth Garden City | Freehold | 63 m² | £300,000 (2025) |
| 75, Swift Close, Letchworth Garden City | Freehold | 55 m² | £290,000 (2022) |
| 76, Swift Close, Letchworth Garden City | Freehold | 55 m² | £275,000 (2021) |
| 77, Swift Close, Letchworth Garden City | Freehold | 55 m² | £208,000 (2015) |
| 78, Swift Close, Letchworth Garden City | Freehold | 55 m² | £144,500 (2006) |
| 79 Swift Close, Letchworth Garden City | Freehold | 40 m² | £187,500 (2025) |
| 79A Swift Close, Letchworth Garden City | Freehold | 62 m² | £123,000 (2011) |
| 80, Swift Close, Letchworth Garden City | Freehold | 55 m² | £52,000 (1997) |
| 81A, Swift Close, Letchworth Garden City | Freehold | 52 m² | £134,500 (2014) |
| 82B Swift Close, Letchworth Garden City | Freehold | 94 m² | £265,000 (2016) |
| 83A, Swift Close, Letchworth Garden City | Freehold | 55 m² | £165,000 (2014) |
| 83B Swift Close, Letchworth Garden City | Freehold | 55 m² | £137,500 (2006) |
| 84A, Swift Close, Letchworth Garden City | Freehold | 55 m² | £175,000 (2014) |
| 84B Swift Close, Letchworth Garden City | Freehold | 65 m² | £280,000 (2016) |
| 85, Swift Close, Letchworth Garden City | Freehold | 75 m² | £139,995 (2012) |
| 86A, Swift Close, Letchworth Garden City | Freehold | 55 m² | £261,000 (2018) |
| 86B, Swift Close, Letchworth Garden City | Freehold | 64 m² | £280,500 (2017) |
| 87A, Swift Close, Letchworth Garden City | - | 91 m² | - |
| 87B, Swift Close, Letchworth Garden City | Freehold | 103 m² | £315,000 (2020) |