HM Land Registry records the plot of land for 34, Lon Y Plas, Carmarthen as measuring 274 m².

That makes it the 21st largest plot in the postcode, where all 37 other houses have recorded plot data.

34, Lon Y Plas, Carmarthen has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 16 Mar 2010.

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

Since 2012 149 properties similar to 34, Lon Y Plas, Carmarthen have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 23rd January 2026, was 6, Heol Morfa Brenin, Carmarthen, SA31 3PA, a freehold house which sold for £280,000.

Read more about house prices in SA31.

• Sold Jan 2026£280,000 | 3 Bed House6, Heol Morfa Brenin, Carmarthen, SA31 3PA6, Heol Morfa Brenin, Carmarthen, SA31 3PA
• Sold Jan 2026£260,000 | 3 Bed House126, Llansteffan Road, Carmarthen, SA31 3NN126, Llansteffan Road, Carmarthen, SA31 3NN
• Sold Jan 2025£290,000 | 3 Bed House2, Plas Y Ddol, Carmarthen, SA31 3PL2, Plas Y Ddol, Carmarthen, SA31 3PL
• Sold Jan 2024£315,000 | 3 Bed House2, Lon Y Plas, Carmarthen, SA31 3NJ2, Lon Y Plas, Carmarthen, SA31 3NJ
• Sold May 2023£270,000 | 3 Bed House1, Lon Y Plas, Carmarthen, SA31 3NJ1, Lon Y Plas, Carmarthen, SA31 3NJ
• Sold Dec 2022£270,000 | 3 Bed House9, Plas Penwern, Carmarthen, SA31 3PN9, Plas Penwern, Carmarthen, SA31 3PN
• Sold Dec 2022£227,000 | 3 Bed House36, Heol Morfa Brenin, Carmarthen, SA31 3PA36, Heol Morfa Brenin, Carmarthen, SA31 3PA
• Sold Mar 2021£182,500 | 3 Bed House9, Heol Drindod, Carmarthen, SA31 3NU9, Heol Drindod, Carmarthen, SA31 3NU
• Sold Jan 2021£222,500 | 3 Bed House3, Lon Y Plas, Carmarthen, SA31 3NJ3, Lon Y Plas, Carmarthen, SA31 3NJ
• Sold Oct 2019£199,000 | 3 Bed House7, Lon Y Plas, Carmarthen, SA31 3NJ7, Lon Y Plas, Carmarthen, SA31 3NJ
• Sold Apr 2018£195,000 | 3 Bed House9, Lon Y Plas, Carmarthen, SA31 3NJ9, Lon Y Plas, Carmarthen, SA31 3NJ
• Sold Dec 2017£172,500 | 3 Bed House16, Plas Y Ddol, Carmarthen, SA31 3PL16, Plas Y Ddol, Carmarthen, SA31 3PL
• Sold Oct 2017£182,000 | 3 Bed House13, Plas Penwern, Carmarthen, SA31 3PN13, Plas Penwern, Carmarthen, SA31 3PN
• Sold Nov 2016£209,950 | 3 Bed House13, Lon Y Plas, Carmarthen, SA31 3NJ13, Lon Y Plas, Carmarthen, SA31 3NJ
• Sold Feb 2016£148,000 | 3 Bed House11, Lon Y Plas, Carmarthen, SA31 3NJ11, Lon Y Plas, Carmarthen, SA31 3NJ
• Sold Feb 2016£160,000 | 3 Bed House4, Plas Penwern, Carmarthen, SA31 3PN4, Plas Penwern, Carmarthen, SA31 3PN
• Sold Nov 2015£156,000 | 3 Bed House18, Plas Y Ddol, Carmarthen, SA31 3PL18, Plas Y Ddol, Carmarthen, SA31 3PL
• Sold Aug 2014£170,000 | 3 Bed House6, Plas Y Ddol, Carmarthen, SA31 3PL6, Plas Y Ddol, Carmarthen, SA31 3PL
• Sold Aug 2013£165,000 | 3 Bed House25, Lon Y Plas, Carmarthen, SA31 3NJ25, Lon Y Plas, Carmarthen, SA31 3NJ
• Sold Nov 2012£147,500 | 3 Bed House29, Lon Y Plas, Carmarthen, SA31 3NJ29, Lon Y Plas, Carmarthen, SA31 3NJ

Of the 37 addresses on Lon Y Plas, Johnstown, Carmarthen, SA31, 34, Lon Y Plas, Carmarthen comes out as the 15th largest and the 15th most expensive in our analysis of the public data.

It is also £32k more expensive than the average property across the SA31 district.

• Carmarthen

  |

  1.5 km away
• Ferryside

  |

  9.2 km away
• Kidwelly

  |

  12.5 km away

The flood risk here is rated Very Low, based on Environment Agency data.