| 15 Old Westbury, Letchworth Garden City, SG6 3NB | Oct 2025 | £485,000 | Flat / maisonette | Leasehold |
| 5 Old Westbury, Letchworth Garden City, SG6 3NB | Jul 2024 | £302,000 | Flat / maisonette | Leasehold |
| 32 Old Westbury, Letchworth Garden City, SG6 3NB | Jul 2024 | £295,000 | Flat / maisonette | Leasehold |
| 31 Old Westbury, Letchworth Garden City, SG6 3NB | Apr 2024 | £252,500 | Flat / maisonette | Leasehold |
| 13 Old Westbury, Letchworth Garden City, SG6 3NB | Nov 2023 | £260,000 | Flat / maisonette | Leasehold |
| 35 Old Westbury, Letchworth Garden City, SG6 3NB | Dec 2022 | £230,000 | Flat / maisonette | Leasehold |
| 19 Old Westbury, Letchworth Garden City, SG6 3NB | Dec 2021 | £331,150 | Terraced | Leasehold |
| 34 Old Westbury, Letchworth Garden City, SG6 3NB | Jun 2021 | £253,000 | Flat / maisonette | Leasehold |
| 3 Old Westbury, Letchworth Garden City, SG6 3NB | Apr 2021 | £282,000 | Flat / maisonette | Leasehold |
| 36 Old Westbury, Letchworth Garden City, SG6 3NB | Mar 2021 | £220,000 | Flat / maisonette | Leasehold |
| 16 Old Westbury, Letchworth Garden City, SG6 3NB | Feb 2021 | £160,000 | Terraced | Leasehold |
| 11 Old Westbury, Letchworth Garden City, SG6 3NB | Jun 2020 | £232,000 | Flat / maisonette | Leasehold |
| 17 Old Westbury, Letchworth Garden City, SG6 3NB | Sep 2019 | £285,000 | Terraced | Freehold |
| 33 Old Westbury, Letchworth Garden City, SG6 3NB | Feb 2019 | £215,000 | Flat / maisonette | Leasehold |
| 18 Old Westbury, Letchworth Garden City, SG6 3NB | Jul 2018 | £298,000 | Terraced | Freehold |
| 28 Old Westbury, Letchworth Garden City, SG6 3NB | Nov 2017 | £335,000 | Flat / maisonette | Leasehold |
| 29 Old Westbury, Letchworth Garden City, SG6 3NB | Jul 2017 | £325,000 | Flat / maisonette | Leasehold |
| 6 Old Westbury, Letchworth Garden City, SG6 3NB | Feb 2017 | £335,000 | Flat / maisonette | Leasehold |
| 12 Old Westbury, Letchworth Garden City, SG6 3NB | Jul 2016 | £300,000 | Flat / maisonette | Leasehold |
| 9 Old Westbury, Letchworth Garden City, SG6 3NB | Nov 2015 | £285,000 | Flat / maisonette | Leasehold |
| 38 Old Westbury, Letchworth Garden City, SG6 3NB | Jul 2013 | £178,995 | Flat / maisonette | Leasehold |
| 14 Old Westbury, Letchworth Garden City, SG6 3NB | Jul 2013 | £239,995 | Flat / maisonette | Leasehold |
| 4 Old Westbury, Letchworth Garden City, SG6 3NB | Jul 2013 | £191,995 | Flat / maisonette | Leasehold |
| 30 Old Westbury, Letchworth Garden City, SG6 3NB | Jun 2013 | £224,995 | Flat / maisonette | Leasehold |
| 8 Old Westbury, Letchworth Garden City, SG6 3NB | Jun 2013 | £176,995 | Flat / maisonette | Leasehold |
| 2 Old Westbury, Letchworth Garden City, SG6 3NB | May 2013 | £184,995 | Flat / maisonette | Leasehold |
| 37 Old Westbury, Letchworth Garden City, SG6 3NB | May 2013 | £176,995 | Flat / maisonette | Leasehold |
| 1 Old Westbury, Letchworth Garden City, SG6 3NB | May 2013 | £226,995 | Flat / maisonette | Leasehold |
| 7 Old Westbury, Letchworth Garden City, SG6 3NB | May 2013 | £224,995 | Flat / maisonette | Leasehold |
| 10 Old Westbury, Letchworth Garden City, SG6 3NB | Apr 2013 | £204,995 | Flat / maisonette | Leasehold |