| 32 Duncan Close, Welwyn Garden City, AL7 3XP | Feb 2026 | £250,000 | Flat / maisonette | Leasehold |
| 3 Duncan Close, Welwyn Garden City, AL7 3XP | Sep 2025 | £410,000 | Semi-detached | Freehold |
| 21 Duncan Close, Welwyn Garden City, AL7 3XP | Sep 2024 | £365,000 | Terraced | Freehold |
| 10 Duncan Close, Welwyn Garden City, AL7 3XP | Jul 2024 | £420,000 | Terraced | Freehold |
| 44 Duncan Close, Welwyn Garden City, AL7 3XP | Jul 2024 | £350,000 | Terraced | Freehold |
| 29 Duncan Close, Welwyn Garden City, AL7 3XP | Jan 2024 | £247,500 | Flat / maisonette | Leasehold |
| 27 Duncan Close, Welwyn Garden City, AL7 3XP | Apr 2023 | £212,500 | Flat / maisonette | Leasehold |
| 35 Duncan Close, Welwyn Garden City, AL7 3XP | Apr 2023 | £380,000 | Terraced | Freehold |
| 24 Duncan Close, Welwyn Garden City, AL7 3XP | Dec 2022 | £210,000 | Flat / maisonette | Leasehold |
| 37 Duncan Close, Welwyn Garden City, AL7 3XP | Aug 2022 | £375,000 | Terraced | Freehold |
| 8 Duncan Close, Welwyn Garden City, AL7 3XP | May 2022 | £355,750 | Terraced | Freehold |
| 17 Duncan Close, Welwyn Garden City, AL7 3XP | Feb 2022 | £282,236 | Terraced | Freehold |
| 7 Duncan Close, Welwyn Garden City, AL7 3XP | Sep 2021 | £299,600 | Terraced | Freehold |
| 39 Duncan Close, Welwyn Garden City, AL7 3XP | Mar 2021 | £315,000 | Terraced | Freehold |
| 18 Duncan Close, Welwyn Garden City, AL7 3XP | Mar 2021 | £244,000 | Terraced | Freehold |
| 5 Duncan Close, Welwyn Garden City, AL7 3XP | Mar 2021 | £365,000 | Terraced | Freehold |
| 4 Duncan Close, Welwyn Garden City, AL7 3XP | Dec 2020 | £395,000 | Semi-detached | Freehold |
| 28 Duncan Close, Welwyn Garden City, AL7 3XP | Sep 2020 | £240,000 | Flat / maisonette | Leasehold |
| 23 Duncan Close, Welwyn Garden City, AL7 3XP | Feb 2020 | £220,000 | Flat / maisonette | Leasehold |
| 22 Duncan Close, Welwyn Garden City, AL7 3XP | Nov 2019 | £325,000 | Terraced | Freehold |
| 9 Duncan Close, Welwyn Garden City, AL7 3XP | May 2018 | £360,000 | Terraced | Freehold |
| 25 Duncan Close, Welwyn Garden City, AL7 3XP | Sep 2017 | £227,000 | Flat / maisonette | Leasehold |
| 30 Duncan Close, Welwyn Garden City, AL7 3XP | Mar 2017 | £188,750 | Flat / maisonette | Leasehold |
| 40 Duncan Close, Welwyn Garden City, AL7 3XP | Oct 2016 | £315,000 | Terraced | Freehold |
| 19 Duncan Close, Welwyn Garden City, AL7 3XP | May 2015 | £185,700 | Terraced | Freehold |
| 41 Duncan Close, Welwyn Garden City, AL7 3XP | Oct 2012 | £210,000 | Terraced | Freehold |
| 45 Duncan Close, Welwyn Garden City, AL7 3XP | Apr 2012 | £179,000 | Terraced | Freehold |
| 14 Duncan Close, Welwyn Garden City, AL7 3XP | Oct 2011 | £196,000 | Terraced | Freehold |
| 42 Duncan Close, Welwyn Garden City, AL7 3XP | Dec 2007 | £215,000 | Terraced | Freehold |
| 33 Duncan Close, Welwyn Garden City, AL7 3XP | May 2007 | £135,000 | Flat / maisonette | Leasehold |
| 2 Duncan Close, Welwyn Garden City, AL7 3XP | Dec 2006 | £196,000 | Terraced | Freehold |
| 1 Duncan Close, Welwyn Garden City, AL7 3XP | Jul 2006 | £232,500 | Detached | Freehold |
| 16 Duncan Close, Welwyn Garden City, AL7 3XP | Mar 2006 | £130,000 | Semi-detached | Freehold |
| 26 Duncan Close, Welwyn Garden City, AL7 3XP | Jun 2004 | £148,000 | Flat / maisonette | Leasehold |
| 11 Duncan Close, Welwyn Garden City, AL7 3XP | Sep 2003 | £165,000 | Terraced | Freehold |
| 12 Duncan Close, Welwyn Garden City, AL7 3XP | Mar 2002 | £143,500 | Terraced | Freehold |
| 20 Duncan Close, Welwyn Garden City, AL7 3XP | Jun 2001 | £113,000 | Terraced | Freehold |
| 43 Duncan Close, Welwyn Garden City, AL7 3XP | Jul 2000 | £114,000 | Semi-detached | Freehold |
| 38 Duncan Close, Welwyn Garden City, AL7 3XP | Mar 1999 | £80,000 | Terraced | Freehold |
| 31 Duncan Close, Welwyn Garden City, AL7 3XP | Aug 1995 | £49,200 | Flat / maisonette | Leasehold |