4, Castleton Avenue, Treorchy occupies a 347 m² plot as recorded by HM Land Registry.

Of the 30 other houses in this postcode, 27 have recorded plot sizes, and this one ranks as the 15th largest.

4, Castleton Avenue, Treorchy has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 26 Sep 2019.

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

4, Castleton Avenue, Treorchy last changed hands on 11th October 2010, selling for £120,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has risen by 92.1% since October 2010.

• Sold Oct 2010£120,000
• Sold Nov 2000£45,000

Land Registry records and our Estate Agent network show 31 sales of comparable properties within 1.5 kilometres of 4, Castleton Avenue, Treorchy since 2010.

Most recently, 58, Miskin Street, Treorchy, CF42 5LR, a freehold house, sold at £269,950 on the 28th October 2025.

Read more about house prices in CF42.

• Sold Oct 2025£269,950 | 4 Bed House58, Miskin Street, Treorchy, CF42 5LR58, Miskin Street, Treorchy, CF42 5LR
• Sold Aug 2025£190,000 | 4 Bed House2 Police Houses, Blaen-Y-Cwm Road, Treorchy, CF42 5DG2 Police Houses, Blaen-Y-Cwm Road, Treorchy, CF42 5DG
• Sold Jul 2025£185,000 | 4 Bed House14, Castleton Avenue, Treorchy, CF42 5SS14, Castleton Avenue, Treorchy, CF42 5SS
• Sold Jun 2025£186,000 | 4 Bed House44, Dunraven Street, Treorchy, CF42 5BH44, Dunraven Street, Treorchy, CF42 5BH
• Sold Oct 2024£182,000 | 4 Bed House182, Dumfries Street, Treorchy, CF42 5PN182, Dumfries Street, Treorchy, CF42 5PN
• Sold Aug 2024£90,000 | 4 Bed House9, Hill Street, Treorchy, CF42 5LG9, Hill Street, Treorchy, CF42 5LG
• Sold Jun 2023£103,000 | 4 Bed House85, Miskin Street, Treorchy, CF42 5LR85, Miskin Street, Treorchy, CF42 5LR
• Sold May 2023£205,000 | 4 Bed House36, Blaenrhondda Road, Treorchy, CF42 5SP36, Blaenrhondda Road, Treorchy, CF42 5SP
• Sold Nov 2022£130,000 | 4 Bed House3, Castleton Avenue, Treorchy, CF42 5SS3, Castleton Avenue, Treorchy, CF42 5SS
• Sold Nov 2022£189,995 | 4 Bed House22, Abertonllwyd Street, Treorchy, CF42 5PG22, Abertonllwyd Street, Treorchy, CF42 5PG
• Sold Aug 2021£89,000 | 4 Bed House4, Scott Street, Treorchy, CF42 5NA4, Scott Street, Treorchy, CF42 5NA
• Sold Aug 2021£60,000 | 4 Bed House18, Dunraven Street, Treorchy, CF42 5BG18, Dunraven Street, Treorchy, CF42 5BG
• Sold Mar 2019£82,500 | 4 Bed House14, St. Albans Road, Treorchy, CF42 5DD14, St. Albans Road, Treorchy, CF42 5DD
• Sold Sep 2017£120,000 | 4 Bed House1 Police Houses, Blaen-Y-Cwm Road, Treorchy, CF42 5DG1 Police Houses, Blaen-Y-Cwm Road, Treorchy, CF42 5DG
• Sold Oct 2016£60,490 | 4 Bed House17, Dunraven Street, Treorchy, CF42 5BG17, Dunraven Street, Treorchy, CF42 5BG
• Sold Oct 2015£79,000 | 4 Bed House187, Dumfries Street, Treorchy, CF42 5PN187, Dumfries Street, Treorchy, CF42 5PN
• Sold Jun 2014£70,000 | 4 Bed House13, Blaenrhondda Road, Treorchy, CF42 5SP13, Blaenrhondda Road, Treorchy, CF42 5SP
• Sold Sep 2013£82,800 | 4 Bed House12, Castleton Avenue, Treorchy, CF42 5SS12, Castleton Avenue, Treorchy, CF42 5SS
• Sold Jun 2011£75,000 | 4 Bed House1, Castleton Avenue, Treorchy, CF42 5SS1, Castleton Avenue, Treorchy, CF42 5SS
• Sold Mar 2010£42,000 | 4 Bed House65, Scott Street, Treorchy, CF42 5NA65, Scott Street, Treorchy, CF42 5NA

Our analysis of the public data ranks 4, Castleton Avenue, Treorchy as the 8th largest and the 8th most expensive of the 30 addresses on Castleton Avenue, Treherbert, Treorchy, CF42.

Against the CF42 postcode district average, it is £21k more expensive than the typical property.

• Treherbert

  |

  1.6 km away
• Ynyswen

  |

  2.8 km away
• Treorchy

  |

  4.2 km away

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