| 16 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Aug 2024 | £180,000 | Detached | Freehold |
| 26 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Feb 2023 | £195,000 | Detached | Freehold |
| 24 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Jan 2023 | £145,000 | Semi-detached | Freehold |
| 13 Heol Seion, Llangennech, Llanelli, SA14 8TZ | May 2022 | £249,950 | Semi-detached | Freehold |
| 15 Heol Seion, Llangennech, Llanelli, SA14 8TZ | May 2022 | £172,500 | Semi-detached | Freehold |
| 6 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Feb 2019 | £110,000 | Semi-detached | Freehold |
| 14 Heol Seion, Llangennech, Llanelli, SA14 8TZ | May 2018 | £123,950 | Semi-detached | Freehold |
| 20 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Nov 2015 | £77,000 | Semi-detached | Freehold |
| 19 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Oct 2014 | £124,000 | Detached | Freehold |
| 12 Heol Seion, Llangennech, Llanelli, SA14 8TZ | May 2014 | £85,000 | Semi-detached | Freehold |
| 18 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Mar 2010 | £88,000 | Terraced | Freehold |
| 17 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Feb 2010 | £95,000 | Semi-detached | Freehold |
| 22 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Jul 2003 | £55,000 | Semi-detached | Freehold |
| 10 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Jun 2003 | £48,000 | Semi-detached | Freehold |
| 2 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Nov 2001 | £56,000 | Detached | Freehold |
| 5 Heol Seion, Llangennech, Llanelli, SA14 8TZ | Apr 2001 | £38,000 | Semi-detached | Freehold |