HM Land Registry records the plot of land for 7, Halswell Street, Mountain Ash as measuring 119 m².

That makes it the largest plot in the postcode, where 10 of the 12 other houses have recorded plot data.

7, Halswell Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 06 Sep 2021.

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 7, Halswell Street, Mountain Ash completed on 6th December 2024 at £100,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have risen by 57.0% over the period since December 2024.

• Sold Dec 2024£100,000
• Sold Dec 2012£68,000

Since 2011 193 properties similar to 7, Halswell Street, Mountain Ash have sold within a radius of 1.5 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 22nd April 2026, was 10, Pentwyn Avenue, Mountain Ash, CF45 4YF, a freehold house which sold for £83,000.

Read more about house prices in CF45.

• Sold Apr 2026£83,000 | 3 Bed House10, Pentwyn Avenue, Mountain Ash, CF45 4YF10, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold May 2025£117,500 | 3 Bed House24, Pentwyn Avenue, Mountain Ash, CF45 4YF24, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Nov 2024£80,000 | 3 Bed House60, Pentwyn Avenue, Mountain Ash, CF45 4YF60, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Oct 2024£130,000 | 3 Bed House20, Milbourne Street, Mountain Ash, CF45 4YL20, Milbourne Street, Mountain Ash, CF45 4YL
• Sold Oct 2024£115,000 | 3 Bed House74, Pentwyn Avenue, Mountain Ash, CF45 4YF74, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Sep 2024£70,000 | 3 Bed House15, Milbourne Street, Mountain Ash, CF45 4YL15, Milbourne Street, Mountain Ash, CF45 4YL
• Sold Aug 2024£100,000 | 3 Bed House55, Avondale Street, Mountain Ash, CF45 4YY55, Avondale Street, Mountain Ash, CF45 4YY
• Sold Oct 2022£114,995 | 3 Bed House133, Bryntirion, Mountain Ash, CF45 4EX133, Bryntirion, Mountain Ash, CF45 4EX
• Sold Jun 2022£145,000 | 3 Bed House92, Pentwyn Avenue, Mountain Ash, CF45 4YF92, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Apr 2021£98,000 | 3 Bed House66, Pentwyn Avenue, Mountain Ash, CF45 4YF66, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Mar 2021£75,000 | 3 Bed House56, Pentwyn Avenue, Mountain Ash, CF45 4YF56, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Sep 2020£30,000 | 3 Bed House52, Pentwyn Avenue, Mountain Ash, CF45 4YF52, Pentwyn Avenue, Mountain Ash, CF45 4YF
• Sold Oct 2019£64,000 | 3 Bed House19, Milbourne Street, Mountain Ash, CF45 4YL19, Milbourne Street, Mountain Ash, CF45 4YL
• Sold Sep 2019£52,000 | 3 Bed House25, Milbourne Street, Mountain Ash, CF45 4YL25, Milbourne Street, Mountain Ash, CF45 4YL
• Sold Feb 2019£50,000 | 3 Bed House27, Walsh Street, Mountain Ash, CF45 4YS27, Walsh Street, Mountain Ash, CF45 4YS
• Sold Feb 2019£60,000 | 3 Bed House9, Halswell Street, Mountain Ash, CF45 4YN9, Halswell Street, Mountain Ash, CF45 4YN
• Sold Nov 2018£82,000 | 3 Bed House39, Walsh Street, Mountain Ash, CF45 4YS39, Walsh Street, Mountain Ash, CF45 4YS
• Sold Jun 2016£68,500 | 3 Bed House17, Walsh Street, Mountain Ash, CF45 4YS17, Walsh Street, Mountain Ash, CF45 4YS
• Sold Nov 2015£65,000 | 3 Bed House21, Walsh Street, Mountain Ash, CF45 4YS21, Walsh Street, Mountain Ash, CF45 4YS
• Sold Dec 2011£65,000 | 3 Bed House6, Pentwyn Avenue, Mountain Ash, CF45 4YF6, Pentwyn Avenue, Mountain Ash, CF45 4YF

Of the 12 addresses on Halswell Street, Mountain Ash, CF45, 7, Halswell Street, Mountain Ash comes out as the 8th largest and the 8th most expensive in our analysis of the public data.

It is also £49k less expensive than the average property across the CF45 district.

• Penrhiwceiber

  |

  1.1 km away
• Quakers Yard

  |

  1.9 km away
• Abercynon

  |

  2.5 km away

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