| 13 Duchess Court, Welwyn Garden City, AL7 4FP | May 2026 | £300,000 | Flat / maisonette | Leasehold |
| 5 Duchess Court, Welwyn Garden City, AL7 4FP | Apr 2026 | £178,750 | Flat / maisonette | Leasehold |
| 44 Duchess Court, Welwyn Garden City, AL7 4FP | Aug 2025 | £305,000 | Flat / maisonette | Leasehold |
| 3 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2025 | £160,000 | Flat / maisonette | Leasehold |
| 15 Duchess Court, Welwyn Garden City, AL7 4FP | Jan 2025 | £305,000 | Flat / maisonette | Leasehold |
| 55 Duchess Court, Welwyn Garden City, AL7 4FP | Jan 2025 | £300,000 | Flat / maisonette | Leasehold |
| 45 Duchess Court, Welwyn Garden City, AL7 4FP | Sep 2024 | £295,000 | Flat / maisonette | Leasehold |
| 10 Duchess Court, Welwyn Garden City, AL7 4FP | Aug 2024 | £316,000 | Flat / maisonette | Leasehold |
| 9 Duchess Court, Welwyn Garden City, AL7 4FP | Aug 2024 | £312,000 | Flat / maisonette | Leasehold |
| 8 Duchess Court, Welwyn Garden City, AL7 4FP | Nov 2023 | £315,000 | Flat / maisonette | Leasehold |
| 2 Duchess Court, Welwyn Garden City, AL7 4FP | Sep 2023 | £340,000 | Flat / maisonette | Leasehold |
| 14 Duchess Court, Welwyn Garden City, AL7 4FP | Sep 2023 | £327,000 | Flat / maisonette | Leasehold |
| 51 Duchess Court, Welwyn Garden City, AL7 4FP | Aug 2023 | £341,000 | Flat / maisonette | Leasehold |
| 54 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2023 | £324,000 | Flat / maisonette | Leasehold |
| 46 Duchess Court, Welwyn Garden City, AL7 4FP | Jun 2023 | £322,500 | Flat / maisonette | Leasehold |
| 50 Duchess Court, Welwyn Garden City, AL7 4FP | Apr 2023 | £307,000 | Flat / maisonette | Leasehold |
| 12 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2022 | £335,000 | Flat / maisonette | Leasehold |
| 17 Duchess Court, Welwyn Garden City, AL7 4FP | Dec 2020 | £310,000 | Flat / maisonette | Leasehold |
| 41 Duchess Court, Welwyn Garden City, AL7 4FP | Nov 2020 | £320,000 | Flat / maisonette | Leasehold |
| 49 Duchess Court, Welwyn Garden City, AL7 4FP | Jun 2019 | £299,995 | Flat / maisonette | Leasehold |
| 43 Duchess Court, Welwyn Garden City, AL7 4FP | Jan 2019 | £299,995 | Flat / maisonette | Leasehold |
| 48 Duchess Court, Welwyn Garden City, AL7 4FP | Nov 2018 | £314,995 | Flat / maisonette | Leasehold |
| 53 Duchess Court, Welwyn Garden City, AL7 4FP | Nov 2018 | £315,000 | Flat / maisonette | Leasehold |
| 16 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2018 | £308,995 | Flat / maisonette | Leasehold |
| 52 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2018 | £308,995 | Flat / maisonette | Leasehold |
| 39 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2018 | £327,500 | Flat / maisonette | Leasehold |
| 42 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2018 | £227,995 | Flat / maisonette | Leasehold |
| 40 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2018 | £289,995 | Flat / maisonette | Leasehold |
| 11 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2018 | £303,995 | Flat / maisonette | Leasehold |
| 47 Duchess Court, Welwyn Garden City, AL7 4FP | Jul 2018 | £303,995 | Flat / maisonette | Leasehold |
| 18 Duchess Court, Welwyn Garden City, AL7 4FP | Apr 2018 | £955,455 | Other property | Leasehold |