| 62 Helvellyn Avenue, Washington, NE38 0QJ | Mar 2026 | £110,000 | Terraced | Freehold |
| 44 Helvellyn Avenue, Washington, NE38 0QJ | Oct 2025 | £206,500 | Semi-detached | Freehold |
| 50 Helvellyn Avenue, Washington, NE38 0QJ | Mar 2025 | £190,000 | Semi-detached | Leasehold |
| 32 Helvellyn Avenue, Washington, NE38 0QJ | Jul 2023 | £165,000 | Semi-detached | Freehold |
| 26 Helvellyn Avenue, Washington, NE38 0QJ | Feb 2020 | £174,000 | Semi-detached | Freehold |
| 18 Helvellyn Avenue, Washington, NE38 0QJ | Oct 2019 | £147,000 | Semi-detached | Freehold |
| 4 Helvellyn Avenue, Washington, NE38 0QJ | Jun 2019 | £149,950 | Semi-detached | Leasehold |
| 80 Helvellyn Avenue, Washington, NE38 0QJ | Dec 2018 | £115,000 | Semi-detached | Freehold |
| 66 Helvellyn Avenue, Washington, NE38 0QJ | Aug 2018 | £130,000 | Semi-detached | Freehold |
| 76 Helvellyn Avenue, Washington, NE38 0QJ | Jul 2017 | £116,545 | Semi-detached | Freehold |
| 82 Helvellyn Avenue, Washington, NE38 0QJ | Jun 2017 | £170,000 | Detached | Freehold |
| 74 Helvellyn Avenue, Washington, NE38 0QJ | Nov 2016 | £118,500 | Semi-detached | Freehold |
| 60 Helvellyn Avenue, Washington, NE38 0QJ | Aug 2014 | £80,000 | Terraced | Freehold |
| 12 Helvellyn Avenue, Washington, NE38 0QJ | May 2014 | £116,000 | Semi-detached | Freehold |
| 14 Helvellyn Avenue, Washington, NE38 0QJ | Feb 2014 | £124,000 | Terraced | Freehold |
| 40 Helvellyn Avenue, Washington, NE38 0QJ | Mar 2012 | £124,950 | Semi-detached | Freehold |
| 10 Helvellyn Avenue, Washington, NE38 0QJ | Aug 2011 | £40,000 | Semi-detached | Leasehold |
| 2 Helvellyn Avenue, Washington, NE38 0QJ | May 2008 | £153,000 | Semi-detached | Freehold |
| 54 Helvellyn Avenue, Washington, NE38 0QJ | Sep 2007 | £117,500 | Terraced | Freehold |
| 52 Helvellyn Avenue, Washington, NE38 0QJ | Oct 2006 | £148,000 | Semi-detached | Freehold |
| 84 Helvellyn Avenue, Washington, NE38 0QJ | Mar 2006 | £180,000 | Detached | Freehold |
| 24 Helvellyn Avenue, Washington, NE38 0QJ | Nov 2004 | £162,500 | Detached | Freehold |
| 8 Helvellyn Avenue, Washington, NE38 0QJ | Mar 2004 | £72,500 | Terraced | Leasehold |
| 16 Helvellyn Avenue, Washington, NE38 0QJ | Feb 2004 | £135,000 | Detached | Freehold |
| 68 Helvellyn Avenue, Washington, NE38 0QJ | Dec 2002 | £81,950 | Semi-detached | Freehold |
| 70 Helvellyn Avenue, Washington, NE38 0QJ | Jun 2001 | £52,500 | Semi-detached | Freehold |
| 46 Helvellyn Avenue, Washington, NE38 0QJ | Oct 1999 | £68,950 | Semi-detached | Leasehold |
| 72 Helvellyn Avenue, Washington, NE38 0QJ | Mar 1995 | £44,000 | Semi-detached | Freehold |