According to data from HM Land Registry, 33, River Avenue, Treharris sits on a plot of 248 m².

We have plot size data on 37 out of 37 other houses in the postcode and 33, River Avenue, Treharris sits on the 19th largest plot.

33, River Avenue, Treharris has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 24 Mar 2015.

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

According to HM Land Registry, 33, River Avenue, Treharris was last sold on 29th May 2015 for £165,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since May 2015, the market for similar properties has risen by 58.8%.

According to the Land Registry and our network of Estate Agents, there have been 128 sales of properties similar to 33, River Avenue, Treharris within a radius of 1.1 kilometres since 2015.

The most recent example is 1, Highfield Rise, Treharris, CF46 6EQ, a freehold house which sold for £335,000 on the 19th December 2025.

Read more about house prices in CF46.

• Sold Dec 2025£335,000 | 3 Bed House1, Highfield Rise, Treharris, CF46 6EQ1, Highfield Rise, Treharris, CF46 6EQ
• Sold Aug 2025£315,000 | 3 Bed House25, River Avenue, Treharris, CF46 6EF25, River Avenue, Treharris, CF46 6EF
• Sold Jun 2025£260,000 | 3 Bed House19, River Avenue, Treharris, CF46 6EF19, River Avenue, Treharris, CF46 6EF
• Sold Dec 2024£300,000 | 3 Bed House1, Tudor Court, Treharris, CF46 6EG1, Tudor Court, Treharris, CF46 6EG
• Sold Aug 2024£300,000 | 3 Bed House11, Orchard Row, Treharris, CF46 6EJ11, Orchard Row, Treharris, CF46 6EJ
• Sold Feb 2024£230,000 | 3 Bed House20, Ivy Close, Treharris, CF46 6ET20, Ivy Close, Treharris, CF46 6ET
• Sold Dec 2023£260,000 | 3 Bed House10, Tudor Court, Treharris, CF46 6EG10, Tudor Court, Treharris, CF46 6EG
• Sold Mar 2023£259,950 | 3 Bed House5, Ivy Close, Treharris, CF46 6ET5, Ivy Close, Treharris, CF46 6ET
• Sold Dec 2022£256,500 | 3 Bed House20, Highfield Rise, Treharris, CF46 6EQ20, Highfield Rise, Treharris, CF46 6EQ
• Sold Mar 2022£260,000 | 3 Bed House37, River Avenue, Treharris, CF46 6EF37, River Avenue, Treharris, CF46 6EF
• Sold Jan 2022£230,500 | 3 Bed House8, Upland Drive, Treharris, CF46 6FB8, Upland Drive, Treharris, CF46 6FB
• Sold Oct 2021£190,000 | 3 Bed House23, River Avenue, Treharris, CF46 6EF23, River Avenue, Treharris, CF46 6EF
• Sold Jul 2019£195,000 | 3 Bed House36, River Avenue, Treharris, CF46 6EF36, River Avenue, Treharris, CF46 6EF
• Sold Mar 2019£195,000 | 3 Bed House32, River Avenue, Treharris, CF46 6EF32, River Avenue, Treharris, CF46 6EF
• Sold Nov 2018£187,000 | 3 Bed House20, River Avenue, Treharris, CF46 6EF20, River Avenue, Treharris, CF46 6EF
• Sold Jun 2017£167,000 | 3 Bed House9, Tudor Court, Treharris, CF46 6EG9, Tudor Court, Treharris, CF46 6EG
• Sold Mar 2015£175,000 | 3 Bed House12, Ivy Close, Treharris, CF46 6ET12, Ivy Close, Treharris, CF46 6ET
• Sold Mar 2015£165,000 | 3 Bed House34, River Avenue, Treharris, CF46 6EF34, River Avenue, Treharris, CF46 6EF
• Sold Mar 2015£170,000 | 3 Bed House13, Ivy Close, Treharris, CF46 6ET13, Ivy Close, Treharris, CF46 6ET
• Sold Jan 2015£174,750 | 3 Bed House35, River Avenue, Treharris, CF46 6EF35, River Avenue, Treharris, CF46 6EF

River Avenue, Trelewis, Treharris, CF46 has a total of 37 addresses. According to our analysis of all the public data, 33, River Avenue, Treharris is the 21st largest and the 22nd most expensive property on the street.

When compared to the postcode district it is £127k more expensive than the average property in CF46.

• Quakers Yard

  |

  2.5 km away
• Abercynon

  |

  3.4 km away
• Ystrad Mynach

  |

  4.0 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.