23, Penn Street, Treharris occupies a 141 m² plot as recorded by HM Land Registry.

Of the 56 other houses in this postcode, 47 have recorded plot sizes, and this one ranks as the 10th largest.

23, Penn Street, Treharris has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 01 Oct 2025.

The property is connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).

Land Registry records and our Estate Agent network show 318 sales of comparable properties within 780 metres of 23, Penn Street, Treharris since 2021.

Most recently, 9, Fell Street, Treharris, CF46 5HN, a freehold house, sold at £137,000 on the 1st May 2026.

Read more about house prices in CF46.

• Sold May 2026£137,000 | 3 Bed House9, Fell Street, Treharris, CF46 5HN9, Fell Street, Treharris, CF46 5HN
• Sold Dec 2025£125,000 | 3 Bed House61, Fell Street, Treharris, CF46 5HN61, Fell Street, Treharris, CF46 5HN
• Sold Jul 2025£110,000 | 3 Bed House25, Penn Street, Treharris, CF46 5HL25, Penn Street, Treharris, CF46 5HL
• Sold Jul 2025£107,950 | 3 Bed House44, Penn Street, Treharris, CF46 5HL44, Penn Street, Treharris, CF46 5HL
• Sold May 2025£92,000 | 3 Bed House45, Penn Street, Treharris, CF46 5HL45, Penn Street, Treharris, CF46 5HL
• Sold Apr 2025£84,000 | 3 Bed House19, Penn Street, Treharris, CF46 5HL19, Penn Street, Treharris, CF46 5HL
• Sold Jan 2025£120,000 | 3 Bed House51, Fell Street, Treharris, CF46 5HN51, Fell Street, Treharris, CF46 5HN
• Sold Sep 2024£84,000 | 3 Bed House43, Penn Street, Treharris, CF46 5HL43, Penn Street, Treharris, CF46 5HL
• Sold Aug 2024£100,000 | 3 Bed House7, Fell Street, Treharris, CF46 5HN7, Fell Street, Treharris, CF46 5HN
• Sold Aug 2024£76,000 | 3 Bed House16, Fell Street, Treharris, CF46 5HN16, Fell Street, Treharris, CF46 5HN
• Sold Nov 2023£68,000 | 3 Bed House19, Fell Street, Treharris, CF46 5HN19, Fell Street, Treharris, CF46 5HN
• Sold Nov 2023£140,000 | 3 Bed House47, Penn Street, Treharris, CF46 5HL47, Penn Street, Treharris, CF46 5HL
• Sold Sep 2023£74,000 | 3 Bed House22, Fell Street, Treharris, CF46 5HN22, Fell Street, Treharris, CF46 5HN
• Sold Jul 2023£115,000 | 3 Bed House24, Penn Street, Treharris, CF46 5HL24, Penn Street, Treharris, CF46 5HL
• Sold May 2023£120,000 | 3 Bed House68, Fell Street, Treharris, CF46 5HN68, Fell Street, Treharris, CF46 5HN
• Sold Apr 2023£110,000 | 3 Bed House19, Webster Street, Treharris, CF46 5HP19, Webster Street, Treharris, CF46 5HP
• Sold Nov 2022£128,000 | 3 Bed House63, Fell Street, Treharris, CF46 5HN63, Fell Street, Treharris, CF46 5HN
• Sold Aug 2022£103,000 | 3 Bed House50, Fell Street, Treharris, CF46 5HN50, Fell Street, Treharris, CF46 5HN
• Sold Oct 2021£86,000 | 3 Bed House52, Penn Street, Treharris, CF46 5HL52, Penn Street, Treharris, CF46 5HL
• Sold Apr 2021£107,500 | 3 Bed House65, Fell Street, Treharris, CF46 5HN65, Fell Street, Treharris, CF46 5HN

Our analysis of the public data ranks 23, Penn Street, Treharris as the 33rd largest and the 32nd most expensive of the 56 addresses on Penn Street, Treharris, CF46.

Against the CF46 postcode district average, it is £41k less expensive than the typical property.

• Quakers Yard

  |

  1.4 km away
• Abercynon

  |

  2.9 km away
• Merthyr Vale

  |

  3.2 km away

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