HM Land Registry records the plot of land for 1, Castleton Avenue, Treorchy as measuring 306 m².

That makes it the 18th largest plot in the postcode, where 27 of the 30 other houses have recorded plot data.

1, Castleton Avenue, Treorchy has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 05 Oct 2010.

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 1, Castleton Avenue, Treorchy completed on 17th June 2011 at £75,000 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 risen by 93.5% over the period since June 2011.

• Sold Jun 2011£75,000

Since 2010 26 properties similar to 1, Castleton Avenue, Treorchy have sold within a radius of 1.5 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 28th October 2025, was 58, Miskin Street, Treorchy, CF42 5LR, a freehold house which sold for £269,950.

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 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 Mar 2025£98,000 | 4 Bed House29, Stuart Street, Treorchy, CF42 5PR29, Stuart Street, Treorchy, CF42 5PR
• 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 May 2023£205,000 | 4 Bed House36, Blaenrhondda Road, Treorchy, CF42 5SP36, Blaenrhondda Road, Treorchy, CF42 5SP
• Sold Oct 2022£225,000 | 4 Bed House19, Stuart Street, Treorchy, CF42 5PR19, Stuart Street, Treorchy, CF42 5PR
• Sold Aug 2022£168,000 | 4 Bed House8, Stuart Street, Treorchy, CF42 5PR8, Stuart Street, Treorchy, CF42 5PR
• Sold Apr 2022£159,000 | 4 Bed House15, Stuart Street, Treorchy, CF42 5PR15, Stuart Street, Treorchy, CF42 5PR
• Sold Aug 2021£89,000 | 4 Bed House4, Scott Street, Treorchy, CF42 5NA4, Scott Street, Treorchy, CF42 5NA
• Sold Mar 2019£82,500 | 4 Bed House14, St. Albans Road, Treorchy, CF42 5DD14, St. Albans Road, Treorchy, CF42 5DD
• Sold Sep 2018£55,000 | 4 Bed House40, Dunraven Street, Treorchy, CF42 5BG40, Dunraven Street, Treorchy, CF42 5BG
• 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 2012£125,000 | 4 Bed House5, Dumfries Street, Treorchy, CF42 5PL5, Dumfries Street, Treorchy, CF42 5PL
• Sold Oct 2010£120,000 | 4 Bed House4, Castleton Avenue, Treorchy, CF42 5SS4, Castleton Avenue, Treorchy, CF42 5SS
• Sold Mar 2010£42,000 | 4 Bed House65, Scott Street, Treorchy, CF42 5NA65, Scott Street, Treorchy, CF42 5NA

Of the 30 addresses on Castleton Avenue, Treherbert, Treorchy, CF42, 1, Castleton Avenue, Treorchy comes out as the 7th largest and the 7th most expensive in our analysis of the public data.

It is also £22k more expensive than the average property across the CF42 district.

• Treherbert

  |

  1.6 km away
• Ynyswen

  |

  2.8 km away
• Treorchy

  |

  4.2 km away

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