Found 28 transactions going back to April 1998.
| Date | Address | Type | Tenure | Price |
|---|---|---|---|---|
| 22 Jul 2025 | 17 Welwyn Avenue | Semi-Detached | Freehold | £ 435,000 |
| 5 Jul 2023 | 20 Welwyn Avenue | Semi-Detached | Leasehold | £ 450,000 |
| 19 Dec 2022 | 26 Welwyn Avenue | Detached | Leasehold | £ 455,000 |
| 24 Jun 2022 | 19 Welwyn Avenue | Semi-Detached | Leasehold | £ 445,000 |
| 1 Apr 2021 | 8 Welwyn Avenue | Semi-Detached | Freehold | £ 325,000 |
| 2 Oct 2020 | 2 Welwyn Avenue | Semi-Detached | Leasehold | £ 240,000 |
| 4 May 2018 | 3 Welwyn Avenue | Semi-Detached | Leasehold | £ 215,000 |
| 10 Nov 2017 | 9 Welwyn Avenue | Semi-Detached | Freehold | £ 265,000 |
| 6 Oct 2017 | 11a, Welwyn Avenue | Semi-Detached | Leasehold | £ 270,000 |
| 15 Dec 2016 | 1 Welwyn Avenue | Semi-Detached | Leasehold | £ 218,500 |
| 25 May 2012 | 7 Welwyn Avenue | Semi-Detached | Freehold | £ 190,000 |
| 19 Mar 2010 | 21 Welwyn Avenue | Semi-Detached | Freehold | £ 275,000 |
| 8 Dec 2008 | 1 Welwyn Avenue | Semi-Detached | Freehold | £ 210,000 |
| 23 May 2008 | 3 Welwyn Avenue | Semi-Detached | Leasehold | £ 200,000 |
| 18 Feb 2008 | 1 Welwyn Avenue | Semi-Detached | Leasehold | £ 176,000 |
| 18 Feb 2008 | 1 Welwyn Avenue | Semi-Detached | Freehold | £ 176,000 |
| 29 Oct 2007 | 9 Welwyn Avenue | Semi-Detached | Freehold | £ 249,950 |
| 22 May 2007 | 5 Welwyn Avenue | Semi-Detached | Leasehold | £ 225,000 |
| 22 Sep 2006 | 11 Welwyn Avenue | Semi-Detached | Leasehold | £ 236,000 |
| 13 Sep 2006 | 22 Welwyn Avenue | Semi-Detached | Leasehold | £ 240,000 |
| 12 Jan 2006 | 22 Welwyn Avenue | Semi-Detached | Leasehold | £ 195,000 |
| 19 Aug 2002 | 14 Welwyn Avenue | Semi-Detached | Freehold | £ 165,000 |
| 29 Mar 2001 | 4 Welwyn Avenue | Semi-Detached | Freehold | £ 117,250 |
| 22 Oct 1999 | 11 Welwyn Avenue | Detached | Leasehold | £ 110,000 |
| 25 Aug 1999 | 4 Welwyn Avenue | Semi-Detached | Freehold | £ 77,500 |
| 26 May 1999 | 9 Welwyn Avenue | Semi-Detached | Freehold | £ 90,000 |
| 21 Dec 1998 | 2 Welwyn Avenue | Semi-Detached | Leasehold | £ 67,500 |
| 17 Apr 1998 | 3 Welwyn Avenue | Semi-Detached | Leasehold | £ 77,000 |
