| 13 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Oct 2025 | £142,000 | Terraced | Leasehold |
| 17 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Mar 2025 | £140,000 | Semi-detached | Freehold |
| 25 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Nov 2024 | £165,000 | Terraced | Freehold |
| 7 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Dec 2021 | £134,000 | Terraced | Freehold |
| 11 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Jul 2021 | £104,950 | Terraced | Leasehold |
| 41 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Jun 2021 | £175,000 | Semi-detached | Freehold |
| 27 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Jan 2021 | £108,000 | Terraced | Freehold |
| 21 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Jul 2020 | £85,000 | Terraced | Freehold |
| 29 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Dec 2019 | £103,000 | Terraced | Freehold |
| 19 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Sep 2019 | £98,000 | Terraced | Freehold |
| 6 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Dec 2015 | £120,000 | Semi-detached | Freehold |
| 8 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Apr 2011 | £148,000 | Semi-detached | Freehold |
| 39 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Oct 2010 | £114,000 | Semi-detached | Leasehold |
| 3 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Jan 2010 | £100,000 | Terraced | Leasehold |
| 4 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Apr 2008 | £112,000 | Semi-detached | Freehold |
| 23 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Apr 2007 | £117,000 | Semi-detached | Freehold |
| 31 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Oct 2006 | £118,000 | Terraced | Freehold |
| 37 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Jul 2003 | £83,000 | Semi-detached | Leasehold |
| 10 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Mar 2003 | £77,000 | Semi-detached | Freehold |
| 2 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Sep 2002 | £73,000 | Semi-detached | Freehold |
| 15 Heol Islwyn, Gorseinon, Swansea, SA4 4LJ | Aug 2001 | £30,750 | Semi-detached | Leasehold |