15, Bonllwyn, Ammanford occupies a 227 m² plot as recorded by HM Land Registry.

Of the 52 other houses in this postcode, 41 have recorded plot sizes, and this one ranks as the 39th largest.

15, Bonllwyn, Ammanford has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Feb 2025.

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

15, Bonllwyn, Ammanford last changed hands on 12th December 2025, selling for £135,000. 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 dropped by 17.3% since December 2025.

• Sold Dec 2025£135,000

Land Registry records and our Estate Agent network show 140 sales of comparable properties within 1.2 kilometres of 15, Bonllwyn, Ammanford since 2007.

Most recently, 15, Harold Street, Ammanford, SA18 2DG, a freehold house, sold at £139,950 on the 30th April 2026.

Read more about house prices in SA18.

• Sold Apr 2026£139,950 | 3 Bed House15, Harold Street, Ammanford, SA18 2DG15, Harold Street, Ammanford, SA18 2DG
• Sold Mar 2026£155,000 | 3 Bed House54, Bonllwyn, Ammanford, SA18 2EF54, Bonllwyn, Ammanford, SA18 2EF
• Sold Feb 2026£165,000 | 3 Bed House31, Harold Street, Ammanford, SA18 2DG31, Harold Street, Ammanford, SA18 2DG
• Sold Dec 2025£120,000 | 3 Bed House32, Arthur Street, Ammanford, SA18 2DR32, Arthur Street, Ammanford, SA18 2DR
• Sold Dec 2025£160,000 | 3 Bed House29, Bonllwyn, Ammanford, SA18 2EF29, Bonllwyn, Ammanford, SA18 2EF
• Sold Oct 2025£130,000 | 3 Bed House30, Bonllwyn, Ammanford, SA18 2EF30, Bonllwyn, Ammanford, SA18 2EF
• Sold Jul 2025£162,000 | 3 Bed House27, Llandybie Road, Ammanford, SA18 2DP27, Llandybie Road, Ammanford, SA18 2DP
• Sold May 2025£130,000 | 3 Bed House28, Bonllwyn, Ammanford, SA18 2EF28, Bonllwyn, Ammanford, SA18 2EF
• Sold Apr 2025£138,000 | 3 Bed House48, Bonllwyn, Ammanford, SA18 2EF48, Bonllwyn, Ammanford, SA18 2EF
• Sold Feb 2025£130,000 | 3 Bed House23, Bonllwyn, Ammanford, SA18 2EF23, Bonllwyn, Ammanford, SA18 2EF
• Sold Jan 2023£129,950 | 3 Bed House8, Arthur Street, Ammanford, SA18 2DR8, Arthur Street, Ammanford, SA18 2DR
• Sold Sep 2021£168,000 | 3 Bed House20, Bonllwyn, Ammanford, SA18 2EF20, Bonllwyn, Ammanford, SA18 2EF
• Sold Aug 2021£100,000 | 3 Bed House6, Bonllwyn, Ammanford, SA18 2EF6, Bonllwyn, Ammanford, SA18 2EF
• Sold Dec 2020£138,000 | 3 Bed House9, Bonllwyn, Ammanford, SA18 2EF9, Bonllwyn, Ammanford, SA18 2EF
• Sold Apr 2020£113,000 | 3 Bed House46, Bonllwyn, Ammanford, SA18 2EF46, Bonllwyn, Ammanford, SA18 2EF
• Sold May 2019£104,000 | 3 Bed House12, Bonllwyn, Ammanford, SA18 2EF12, Bonllwyn, Ammanford, SA18 2EF
• Sold Jan 2018£120,000 | 3 Bed House11, Bonllwyn, Ammanford, SA18 2EF11, Bonllwyn, Ammanford, SA18 2EF
• Sold Jun 2017£110,000 | 3 Bed House16, Bonllwyn, Ammanford, SA18 2EF16, Bonllwyn, Ammanford, SA18 2EF
• Sold Aug 2016£115,000 | 3 Bed House38, Bonllwyn, Ammanford, SA18 2EF38, Bonllwyn, Ammanford, SA18 2EF
• Sold Oct 2007£105,000 | 3 Bed House44, Bonllwyn, Ammanford, SA18 2EF44, Bonllwyn, Ammanford, SA18 2EF

Our analysis of the public data ranks 15, Bonllwyn, Ammanford as the 39th largest and the 35th most expensive of the 54 addresses on Bonllwyn, Ammanford, SA18.

Against the SA18 postcode district average, it is £53k less expensive than the typical property.

• Ammanford

  |

  800 m away
• Pantyffynnon

  |

  2.8 km away
• Llandybie

  |

  3.1 km away

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