According to data from HM Land Registry, 21, Brettenham Street, Llanelli sits on a plot of 298 m².

We have plot size data on 30 out of 30 other houses in the postcode and 21, Brettenham Street, Llanelli sits on the 12th largest plot.

21, Brettenham Street, Llanelli has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 18 Feb 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, 21, Brettenham Street, Llanelli was last sold on 24th June 2019 for £122,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since June 2019, the market for similar properties has risen by 31.3%.

• Sold Jun 2019£122,000

According to the Land Registry and our network of Estate Agents, there have been 113 sales of properties similar to 21, Brettenham Street, Llanelli within a radius of 650 metres since 2017.

The most recent example is 4, Stewart Street, Llanelli, SA15 3EW, a freehold house which sold for £182,000 on the 28th November 2025.

Read more about house prices in SA15.

• Sold Nov 2025£182,000 | 3 Bed House4, Stewart Street, Llanelli, SA15 3EW4, Stewart Street, Llanelli, SA15 3EW
• Sold Apr 2025£150,000 | 3 Bed House19, Stradey Park Avenue, Llanelli, SA15 3EG19, Stradey Park Avenue, Llanelli, SA15 3EG
• Sold Dec 2024£155,000 | 3 Bed House17, Chapman Street, Llanelli, SA15 3EB17, Chapman Street, Llanelli, SA15 3EB
• Sold Oct 2024£165,000 | 3 Bed House23, Miles Street, Llanelli, SA15 3DU23, Miles Street, Llanelli, SA15 3DU
• Sold Apr 2024£162,000 | 3 Bed House30, Chapman Street, Llanelli, SA15 3EB30, Chapman Street, Llanelli, SA15 3EB
• Sold Jul 2023£185,000 | 3 Bed House31, Chapman Street, Llanelli, SA15 3EB31, Chapman Street, Llanelli, SA15 3EB
• Sold Jan 2023£175,000 | 3 Bed House11, Brettenham Street, Llanelli, SA15 3ED11, Brettenham Street, Llanelli, SA15 3ED
• Sold Jan 2023£160,000 | 3 Bed House19, Brettenham Street, Llanelli, SA15 3ED19, Brettenham Street, Llanelli, SA15 3ED
• Sold Oct 2022£220,000 | 3 Bed House5, Stradey Park Avenue, Llanelli, SA15 3EG5, Stradey Park Avenue, Llanelli, SA15 3EG
• Sold Oct 2021£135,000 | 3 Bed House13, Brettenham Street, Llanelli, SA15 3ED13, Brettenham Street, Llanelli, SA15 3ED
• Sold Mar 2021£137,500 | 3 Bed House41, Stradey Park Avenue, Llanelli, SA15 3EG41, Stradey Park Avenue, Llanelli, SA15 3EG
• Sold Oct 2020£118,000 | 3 Bed House2, Pryce Street, Llanelli, SA15 3DY2, Pryce Street, Llanelli, SA15 3DY
• Sold Sep 2020£190,000 | 3 Bed House27, Chapman Street, Llanelli, SA15 3EB27, Chapman Street, Llanelli, SA15 3EB
• Sold Apr 2019£165,000 | 3 Bed House32, Chapman Street, Llanelli, SA15 3EB32, Chapman Street, Llanelli, SA15 3EB
• Sold Apr 2019£88,000 | 3 Bed House31, Stradey Park Avenue, Llanelli, SA15 3EG31, Stradey Park Avenue, Llanelli, SA15 3EG
• Sold Sep 2018£140,000 | 3 Bed House29, Stradey Park Avenue, Llanelli, SA15 3EG29, Stradey Park Avenue, Llanelli, SA15 3EG
• Sold Aug 2018£130,000 | 3 Bed House33, Stradey Park Avenue, Llanelli, SA15 3EG33, Stradey Park Avenue, Llanelli, SA15 3EG
• Sold May 2018£116,000 | 3 Bed House1, Pryce Street, Llanelli, SA15 3DY1, Pryce Street, Llanelli, SA15 3DY
• Sold Dec 2017£89,499 | 3 Bed House42, Chapman Street, Llanelli, SA15 3EB42, Chapman Street, Llanelli, SA15 3EB
• Sold Jul 2017£95,000 | 3 Bed House11, Pryce Street, Llanelli, SA15 3DY11, Pryce Street, Llanelli, SA15 3DY

Brettenham Street, Llanelli, SA15 has a total of 30 addresses. According to our analysis of all the public data, 21, Brettenham Street, Llanelli is the 13th largest and the 13th most expensive property on the street.

When compared to the postcode district it is £4k less expensive than the average property in SA15.

• Llanelli

  |

  1.6 km away
• Bynea

  |

  5.2 km away
• Pembrey & Burry Port

  |

  5.4 km away

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