16, Heol Seion, Llanelli occupies a 511 m² plot as recorded by HM Land Registry.

Of the 23 other houses in this postcode, 19 have recorded plot sizes, and this one ranks as the 2nd largest.

16, Heol Seion, Llanelli has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Jun 2024.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

16, Heol Seion, Llanelli last changed hands on 19th August 2024, selling for £180,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 1.7% since August 2024.

Land Registry records and our Estate Agent network show 77 sales of comparable properties within 1.4 kilometres of 16, Heol Seion, Llanelli since 2010.

Most recently, 18, Talywern, Llanelli, SA14 8UQ, a freehold house, sold at £202,000 on the 28th July 2025.

Read more about house prices in SA14.

• Sold Jul 2025£202,000 | 3 Bed House18, Talywern, Llanelli, SA14 8UQ18, Talywern, Llanelli, SA14 8UQ
• Sold Jun 2025£175,000 | 3 Bed House69, Hendre Park, Llanelli, SA14 8UR69, Hendre Park, Llanelli, SA14 8UR
• Sold Aug 2024£175,000 | 3 Bed House12, Heol Plas Isaf, Llanelli, SA14 8TJ12, Heol Plas Isaf, Llanelli, SA14 8TJ
• Sold Oct 2023£210,000 | 3 Bed House14, Talywern, Llanelli, SA14 8UQ14, Talywern, Llanelli, SA14 8UQ
• Sold Feb 2023£195,000 | 3 Bed House26, Heol Seion, Llanelli, SA14 8TZ26, Heol Seion, Llanelli, SA14 8TZ
• Sold Jan 2023£145,000 | 3 Bed House24, Heol Seion, Llanelli, SA14 8TZ24, Heol Seion, Llanelli, SA14 8TZ
• Sold May 2022£249,950 | 3 Bed House13, Heol Seion, Llanelli, SA14 8TZ13, Heol Seion, Llanelli, SA14 8TZ
• Sold May 2022£172,500 | 3 Bed House15, Heol Seion, Llanelli, SA14 8TZ15, Heol Seion, Llanelli, SA14 8TZ
• Sold Dec 2020£124,400 | 3 Bed House5, Heol Plas Isaf, Llanelli, SA14 8TJ5, Heol Plas Isaf, Llanelli, SA14 8TJ
• Sold Feb 2019£110,000 | 3 Bed House6, Heol Seion, Llanelli, SA14 8TZ6, Heol Seion, Llanelli, SA14 8TZ
• Sold Oct 2018£124,000 | 3 Bed House40, Talywern, Llanelli, SA14 8UQ40, Talywern, Llanelli, SA14 8UQ
• Sold Jun 2018£125,000 | 3 Bed House12, Clos Cae Fainc, Llanelli, SA14 8TQ12, Clos Cae Fainc, Llanelli, SA14 8TQ
• Sold May 2018£123,950 | 3 Bed House14, Heol Seion, Llanelli, SA14 8TZ14, Heol Seion, Llanelli, SA14 8TZ
• Sold Feb 2016£93,000 | 3 Bed House15, Heol Plas Isaf, Llanelli, SA14 8TJ15, Heol Plas Isaf, Llanelli, SA14 8TJ
• Sold Sep 2015£83,500 | 3 Bed House2, Brynhyfryd, Llanelli, SA14 8GA2, Brynhyfryd, Llanelli, SA14 8GA
• Sold Oct 2014£124,000 | 3 Bed House19, Heol Seion, Llanelli, SA14 8TZ19, Heol Seion, Llanelli, SA14 8TZ
• Sold May 2014£85,000 | 3 Bed House12, Heol Seion, Llanelli, SA14 8TZ12, Heol Seion, Llanelli, SA14 8TZ
• Sold Jan 2012£105,000 | 3 Bed House3, Heol Plas Isaf, Llanelli, SA14 8TJ3, Heol Plas Isaf, Llanelli, SA14 8TJ
• Sold Sep 2011£125,000 | 3 Bed House58, Hendre Road, Llanelli, SA14 8TX58, Hendre Road, Llanelli, SA14 8TX
• Sold Nov 2010£116,000 | 3 Bed House6, Heol Plas Isaf, Llanelli, SA14 8TJ6, Heol Plas Isaf, Llanelli, SA14 8TJ

Our analysis of the public data ranks 16, Heol Seion, Llanelli as the 15th largest and the 4th most expensive of the 23 addresses on Heol Seion, Llangennech, Llanelli, SA14.

Against the SA14 postcode district average, it is £3k more expensive than the typical property.

• Llangennech

  |

  500 m away
• Bynea

  |

  2.3 km away
• Pontarddulais

  |

  4.0 km away

Environment Agency data suggests this area has a Very Low risk of flooding.