According to data from HM Land Registry, 129, Old Castle Road, Llanelli sits on a plot of 140 m².

We have plot size data on 36 out of 44 other houses in the postcode and 129, Old Castle Road, Llanelli sits on the 5th largest plot.

129, Old Castle Road, Llanelli has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 02 Apr 2019.

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

According to HM Land Registry, 129, Old Castle Road, Llanelli was last sold on 28th November 2003 for £82,500 and was recorded as a freehold house.

The property has had 3 sales since 1995.

• Sold Nov 2003£82,500
• Sold Oct 2002£63,500
• Sold Sep 2001£37,500

According to the Land Registry and our network of Estate Agents, there have been 276 sales of properties similar to 129, Old Castle Road, Llanelli within a radius of 590 metres since 2017.

The most recent example is 36, Princess Street, Llanelli, SA15 2TD, a freehold house which sold for £127,000 on the 23rd January 2026.

Read more about house prices in SA15.

• Sold Jan 2026£127,000 | 3 Bed House36, Princess Street, Llanelli, SA15 2TD36, Princess Street, Llanelli, SA15 2TD
• Sold Nov 2025£122,000 | 3 Bed House27, Brynmor Road, Llanelli, SA15 2TF27, Brynmor Road, Llanelli, SA15 2TF
• Sold Jul 2025£152,500 | 3 Bed House8, Amos Street, Llanelli, SA15 2TU8, Amos Street, Llanelli, SA15 2TU
• Sold Jun 2025£133,000 | 3 Bed House17, Brynmor Road, Llanelli, SA15 2TF17, Brynmor Road, Llanelli, SA15 2TF
• Sold Apr 2025£132,500 | 3 Bed House33, Old Castle Road, Llanelli, SA15 2SL33, Old Castle Road, Llanelli, SA15 2SL
• Sold Mar 2025£140,000 | 3 Bed House81, Brynmor Road, Llanelli, SA15 2TF81, Brynmor Road, Llanelli, SA15 2TF
• Sold Oct 2024£120,000 | 3 Bed House31, Princess Street, Llanelli, SA15 2TB31, Princess Street, Llanelli, SA15 2TB
• Sold Aug 2024£100,000 | 3 Bed House53, Brynmor Road, Llanelli, SA15 2TF53, Brynmor Road, Llanelli, SA15 2TF
• Sold May 2024£120,000 | 3 Bed House85, Old Castle Road, Llanelli, SA15 2SN85, Old Castle Road, Llanelli, SA15 2SN
• Sold May 2024£119,500 | 3 Bed House1, Downing Street, Llanelli, SA15 2UA1, Downing Street, Llanelli, SA15 2UA
• Sold Dec 2023£120,000 | 3 Bed House49, Brynmor Road, Llanelli, SA15 2TF49, Brynmor Road, Llanelli, SA15 2TF
• Sold Nov 2023£115,000 | 3 Bed House27, Princess Street, Llanelli, SA15 2TB27, Princess Street, Llanelli, SA15 2TB
• Sold Aug 2023£70,000 | 3 Bed House123, Old Castle Road, Llanelli, SA15 2SN123, Old Castle Road, Llanelli, SA15 2SN
• Sold Jan 2023£90,000 | 3 Bed House35, Albert Street, Llanelli, SA15 2SY35, Albert Street, Llanelli, SA15 2SY
• Sold Jan 2023£100,000 | 3 Bed House33, Albert Street, Llanelli, SA15 2SY33, Albert Street, Llanelli, SA15 2SY
• Sold Sep 2022£97,000 | 3 Bed House103, Old Castle Road, Llanelli, SA15 2SN103, Old Castle Road, Llanelli, SA15 2SN
• Sold Nov 2021£115,000 | 3 Bed House50, Princess Street, Llanelli, SA15 2TD50, Princess Street, Llanelli, SA15 2TD
• Sold Jun 2021£95,000 | 3 Bed House41, Brynmor Road, Llanelli, SA15 2TF41, Brynmor Road, Llanelli, SA15 2TF
• Sold May 2021£88,500 | 3 Bed House24, Princess Street, Llanelli, SA15 2TD24, Princess Street, Llanelli, SA15 2TD
• Sold Apr 2017£98,000 | 3 Bed House113, Old Castle Road, Llanelli, SA15 2SN113, Old Castle Road, Llanelli, SA15 2SN

Old Castle Road, Llanelli, SA15 has a total of 99 addresses. According to our analysis of all the public data, 129, Old Castle Road, Llanelli is the 26th largest and the 45th most expensive property on the street.

When compared to the postcode district it is £56k less expensive than the average property in SA15.

• Llanelli

  |

  800 m away
• Bynea

  |

  4.8 km away
• Pembrey & Burry Port

  |

  5.6 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.