From 1 Jan 1995 to 30 Apr 2025
| Address | Property Type | Current Estimated Value | Price Paid | Date |
|---|---|---|---|---|
| 1 WELWYN AVENUE | Detached | £291,690 | £74,950 | 7 Jul 2000 |
| 2 WELWYN AVENUE | Semi-Detached | £236,131 | £59,995 | 13 Jun 2000 |
| 3 WELWYN AVENUE | Detached | £342,234 | £210,000 | 19 Oct 2007 |
| 4 WELWYN AVENUE | Terraced | £222,090 | £135,000 | 10 Aug 2007 |
| 5 WELWYN AVENUE | Semi-Detached | £124,950 | 16 May 2013 | |
| 7 WELWYN AVENUE | Semi-Detached | £288,489 | £130,000 | 11 Feb 2004 |
| 8 WELWYN AVENUE | Semi-Detached | £286,538 | £150,000 | 20 Oct 2005 |
| 9 WELWYN AVENUE | Semi-Detached | £213,577 | £206,000 | 8 Nov 2022 |
| 10 WELWYN AVENUE | Semi-Detached | £70,000 | 27 Nov 2009 | |
| 14 WELWYN AVENUE | Semi-Detached | £246,124 | £122,000 | 31 Aug 2004 |
| 15 WELWYN AVENUE | Semi-Detached | £209,086 | £172,000 | 23 Nov 2020 |
| 16 WELWYN AVENUE | Semi-Detached | £143,000 | 10 Apr 2014 | |
| 18 WELWYN AVENUE | Semi-Detached | £196,299 | £150,000 | 12 Feb 2018 |
| 19 WELWYN AVENUE | Semi-Detached | £302,003 | £194,000 | 9 Jan 2015 |
| 22 WELWYN AVENUE | Semi-Detached | £244,726 | £42,000 | 5 Jul 1996 |
| 24 WELWYN AVENUE | Detached | £256,936 | £154,950 | 21 Feb 2014 |