| 103 Helvellyn Avenue, Washington, NE38 0QL | Mar 2026 | £125,000 | Terraced | Freehold |
| 23 Helvellyn Avenue, Washington, NE38 0QL | Mar 2025 | £160,000 | Semi-detached | Freehold |
| 109 Helvellyn Avenue, Washington, NE38 0QL | Oct 2024 | £236,000 | Detached | Freehold |
| 93 Helvellyn Avenue, Washington, NE38 0QL | Feb 2024 | £155,000 | Terraced | Freehold |
| 31 Helvellyn Avenue, Washington, NE38 0QL | Feb 2023 | £126,000 | Semi-detached | Freehold |
| 105 Helvellyn Avenue, Washington, NE38 0QL | Nov 2021 | £85,000 | Terraced | Freehold |
| 53 Helvellyn Avenue, Washington, NE38 0QL | Nov 2019 | £165,000 | Detached | Freehold |
| 95 Helvellyn Avenue, Washington, NE38 0QL | Oct 2019 | £134,000 | Semi-detached | Freehold |
| 73 Helvellyn Avenue, Washington, NE38 0QL | Apr 2019 | £95,000 | Terraced | Freehold |
| 97 Helvellyn Avenue, Washington, NE38 0QL | Oct 2018 | £121,000 | Semi-detached | Freehold |
| 61 Helvellyn Avenue, Washington, NE38 0QL | Aug 2018 | £172,000 | Detached | Freehold |
| 115 Helvellyn Avenue, Washington, NE38 0QL | Jan 2018 | £124,950 | Terraced | Freehold |
| 47 Helvellyn Avenue, Washington, NE38 0QL | Sep 2017 | £98,000 | Semi-detached | Freehold |
| 41 Helvellyn Avenue, Washington, NE38 0QL | Mar 2017 | £100,000 | Terraced | Freehold |
| 111 Helvellyn Avenue, Washington, NE38 0QL | Jan 2017 | £100,000 | Semi-detached | Freehold |
| 71 Helvellyn Avenue, Washington, NE38 0QL | Aug 2016 | £106,000 | Semi-detached | Freehold |
| 83 Helvellyn Avenue, Washington, NE38 0QL | Nov 2015 | £116,950 | Terraced | Freehold |
| 63 Helvellyn Avenue, Washington, NE38 0QL | Sep 2015 | £166,000 | Detached | Freehold |
| 79 Helvellyn Avenue, Washington, NE38 0QL | Apr 2015 | £103,000 | Terraced | Freehold |
| 45 Helvellyn Avenue, Washington, NE38 0QL | Mar 2013 | £115,000 | Semi-detached | Freehold |
| 85 Helvellyn Avenue, Washington, NE38 0QL | Feb 2011 | £116,000 | Semi-detached | Freehold |
| 107 Helvellyn Avenue, Washington, NE38 0QL | Jan 2008 | £185,000 | Detached | Freehold |
| 15 Helvellyn Avenue, Washington, NE38 0QL | Oct 2007 | £156,000 | Semi-detached | Freehold |
| 29 Helvellyn Avenue, Washington, NE38 0QL | Oct 2007 | £148,000 | Semi-detached | Freehold |
| 89 Helvellyn Avenue, Washington, NE38 0QL | Jul 2004 | £99,000 | Terraced | Freehold |
| 55 Helvellyn Avenue, Washington, NE38 0QL | Jul 2004 | £148,000 | Semi-detached | Freehold |
| 113 Helvellyn Avenue, Washington, NE38 0QL | Jun 2003 | £80,000 | Terraced | Freehold |
| 65 Helvellyn Avenue, Washington, NE38 0QL | May 2003 | £130,000 | Detached | Freehold |
| 59 Helvellyn Avenue, Washington, NE38 0QL | Jul 2002 | £72,950 | Semi-detached | Freehold |
| 81 Helvellyn Avenue, Washington, NE38 0QL | May 2002 | £56,000 | Terraced | Freehold |
| 77 Helvellyn Avenue, Washington, NE38 0QL | May 2002 | £64,000 | Terraced | Freehold |
| 67 Helvellyn Avenue, Washington, NE38 0QL | Feb 2002 | £81,000 | Detached | Freehold |
| 99 Helvellyn Avenue, Washington, NE38 0QL | Dec 2001 | £52,500 | Semi-detached | Freehold |
| 101 Helvellyn Avenue, Washington, NE38 0QL | Aug 2001 | £51,950 | Semi-detached | Freehold |
| 13 Helvellyn Avenue, Washington, NE38 0QL | Apr 1999 | £31,000 | Semi-detached | Leasehold |
| 3 Helvellyn Avenue, Washington, NE38 0QL | Oct 1998 | £49,050 | Semi-detached | Leasehold |
| 7 Helvellyn Avenue, Washington, NE38 0QL | May 1998 | £48,950 | Semi-detached | Freehold |
| 43 Helvellyn Avenue, Washington, NE38 0QL | Oct 1997 | £52,950 | Semi-detached | Freehold |
| 35 Helvellyn Avenue, Washington, NE38 0QL | May 1997 | £12,985 | Semi-detached | Freehold |
| 91 Helvellyn Avenue, Washington, NE38 0QL | Apr 1997 | £35,000 | Terraced | Freehold |
| 19 Helvellyn Avenue, Washington, NE38 0QL | Feb 1997 | £48,000 | Semi-detached | Freehold |