| 14 Portland Avenue, Harwich, CO12 3QN | Jun 2026 | £210,000 | Semi-detached | Freehold |
| 22 Portland Avenue, Harwich, CO12 3QN | Mar 2026 | £242,000 | Semi-detached | Freehold |
| 31 Portland Avenue, Harwich, CO12 3QN | Jul 2024 | £165,000 | Terraced | Freehold |
| 27 Portland Avenue, Harwich, CO12 3QN | Jun 2024 | £212,500 | Terraced | Freehold |
| 29 Portland Avenue, Harwich, CO12 3QN | Dec 2023 | £120,000 | Detached | Freehold |
| 16 Portland Avenue, Harwich, CO12 3QN | Apr 2022 | £251,000 | Semi-detached | Freehold |
| 18 Portland Avenue, Harwich, CO12 3QN | Nov 2021 | £235,000 | Semi-detached | Freehold |
| 23 Portland Avenue, Harwich, CO12 3QN | May 2021 | £157,000 | Terraced | Freehold |
| 7 Portland Avenue, Harwich, CO12 3QN | Aug 2019 | £130,000 | Terraced | Freehold |
| 13 Portland Avenue, Harwich, CO12 3QN | Apr 2017 | £110,000 | Terraced | Freehold |
| 24 Portland Avenue, Harwich, CO12 3QN | Mar 2016 | £135,500 | Semi-detached | Freehold |
| 11 Portland Avenue, Harwich, CO12 3QN | Feb 2016 | £89,000 | Terraced | Freehold |
| 9 Portland Avenue, Harwich, CO12 3QN | Dec 2015 | £100,000 | Terraced | Freehold |
| 10 Portland Avenue, Harwich, CO12 3QN | Jun 2014 | £151,750 | Detached | Freehold |
| 35 Portland Avenue, Harwich, CO12 3QN | Jun 2013 | £90,000 | Terraced | Freehold |
| 12 Portland Avenue, Harwich, CO12 3QN | Oct 2011 | £99,995 | Semi-detached | Freehold |
| 5 Portland Avenue, Harwich, CO12 3QN | Mar 2011 | £139,950 | Detached | Freehold |
| 19 Portland Avenue, Harwich, CO12 3QN | Sep 2010 | £100,000 | Terraced | Freehold |
| 15 Portland Avenue, Harwich, CO12 3QN | May 2010 | £92,000 | Terraced | Freehold |
| 39 Portland Avenue, Harwich, CO12 3QN | Jun 2009 | £78,000 | Semi-detached | Freehold |
| 17 Portland Avenue, Harwich, CO12 3QN | Jun 2005 | £100,000 | Terraced | Freehold |
| 33 Portland Avenue, Harwich, CO12 3QN | Mar 2002 | £61,000 | Terraced | Freehold |
| 21 Portland Avenue, Harwich, CO12 3QN | Dec 2000 | £57,000 | Terraced | Freehold |
| 30 Portland Avenue, Harwich, CO12 3QN | Jan 1999 | £36,000 | Semi-detached | Freehold |
| 28 Portland Avenue, Harwich, CO12 3QN | Jul 1998 | £50,450 | Terraced | Freehold |
| 20 Portland Avenue, Harwich, CO12 3QN | Dec 1996 | £35,000 | Semi-detached | Freehold |