HM Land Registry records the plot of land for 23, Llanarth Street, Caerphilly as measuring 173 m².

That makes it the 13th largest plot in the postcode, where 15 of the 21 other houses have recorded plot data.

23, Llanarth Street, Caerphilly has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 05 May 2022.

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

The most recent sale of 23, Llanarth Street, Caerphilly completed on 21st December 2022 at £185,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have dropped by 3.8% over the period since December 2022.

• Sold Dec 2022£185,000

Since 2010 124 properties similar to 23, Llanarth Street, Caerphilly have sold within a radius of 2.5 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 23rd January 2026, was 21, Graig View, Caerphilly, CF83 8SD, a freehold house which sold for £225,000.

Read more about house prices in CF83.

• Sold Jan 2026£225,000 | 3 Bed House21, Graig View, Caerphilly, CF83 8SD21, Graig View, Caerphilly, CF83 8SD
• Sold Dec 2025£227,500 | 3 Bed House40, Graig View, Caerphilly, CF83 8SE40, Graig View, Caerphilly, CF83 8SE
• Sold May 2025£240,000 | 3 Bed House10, Lewis Street, Caerphilly, CF83 8PP10, Lewis Street, Caerphilly, CF83 8PP
• Sold Mar 2025£250,000 | 3 Bed House15, Brynhyfryd Terrace, Caerphilly, CF83 8PZ15, Brynhyfryd Terrace, Caerphilly, CF83 8PZ
• Sold Sep 2023£210,000 | 3 Bed House19, Brynheulog Terrace, Caerphilly, CF83 8QB19, Brynheulog Terrace, Caerphilly, CF83 8QB
• Sold Dec 2022£240,000 | 3 Bed House7, Crown Walk, Caerphilly, CF83 8SX7, Crown Walk, Caerphilly, CF83 8SX
• Sold Mar 2022£180,000 | 3 Bed House6, Crown Walk, Caerphilly, CF83 8SX6, Crown Walk, Caerphilly, CF83 8SX
• Sold Jul 2021£157,500 | 3 Bed House28, Graig View, Caerphilly, CF83 8SE28, Graig View, Caerphilly, CF83 8SE
• Sold May 2021£163,000 | 3 Bed House25, Llanarth Street, Caerphilly, CF83 8SJ25, Llanarth Street, Caerphilly, CF83 8SJ
• Sold Apr 2021£198,000 | 3 Bed House6, Brynhyfryd Terrace, Caerphilly, CF83 8PZ6, Brynhyfryd Terrace, Caerphilly, CF83 8PZ
• Sold Nov 2020£198,000 | 3 Bed House13, Llanarth Street, Caerphilly, CF83 8SJ13, Llanarth Street, Caerphilly, CF83 8SJ
• Sold Dec 2019£234,000 | 3 Bed House6, Llanarth Street, Caerphilly, CF83 8SJ6, Llanarth Street, Caerphilly, CF83 8SJ
• Sold Oct 2018£116,000 | 3 Bed House38, Graig View, Caerphilly, CF83 8SE38, Graig View, Caerphilly, CF83 8SE
• Sold Oct 2018£173,000 | 3 Bed House12, Graig View, Caerphilly, CF83 8SE12, Graig View, Caerphilly, CF83 8SE
• Sold May 2018£131,000 | 3 Bed House33, Graig View, Caerphilly, CF83 8SD33, Graig View, Caerphilly, CF83 8SD
• Sold Feb 2018£176,500 | 3 Bed House19, Llanarth Street, Caerphilly, CF83 8SJ19, Llanarth Street, Caerphilly, CF83 8SJ
• Sold Nov 2017£140,000 | 3 Bed House8, Crown Walk, Caerphilly, CF83 8SX8, Crown Walk, Caerphilly, CF83 8SX
• Sold Oct 2014£127,500 | 3 Bed House44, Graig View, Caerphilly, CF83 8SE44, Graig View, Caerphilly, CF83 8SE
• Sold Dec 2012£105,000 | 3 Bed House15, Llanarth Street, Caerphilly, CF83 8SJ15, Llanarth Street, Caerphilly, CF83 8SJ
• Sold Sep 2010£132,500 | 3 Bed House21, Llanarth Street, Caerphilly, CF83 8SJ21, Llanarth Street, Caerphilly, CF83 8SJ

Of the 21 addresses on Llanarth Street, Machen, Caerphilly, CF83, 23, Llanarth Street, Caerphilly comes out as the 7th largest and the 8th most expensive in our analysis of the public data.

It is also £1k more expensive than the average property across the CF83 district.

• Risca & Pontymister

  |

  3.0 km away
• Crosskeys

  |

  3.0 km away
• Rogerstone

  |

  4.5 km away

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