According to data from HM Land Registry, 5, Prosser Street, Mountain Ash sits on a plot of 118 m².

We have plot size data on 10 out of 10 other houses in the postcode and 5, Prosser Street, Mountain Ash sits on the 9th largest plot.

5, Prosser Street, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 01 Mar 2026.

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

According to HM Land Registry, 5, Prosser Street, Mountain Ash was last sold on 31st July 2012 for £69,950 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since July 2012, the market for similar properties has risen by 128.0%.

• Sold Jul 2012£69,950

According to the Land Registry and our network of Estate Agents, there have been 136 sales of properties similar to 5, Prosser Street, Mountain Ash within a radius of 590 metres since 2018.

The most recent example is 52, Woodfield Terrace, Mountain Ash, CF45 3UU, a freehold house which sold for £82,000 on the 12th June 2026.

Read more about house prices in CF45.

• Sold Jun 2026£82,000 | 3 Bed House52, Woodfield Terrace, Mountain Ash, CF45 3UU52, Woodfield Terrace, Mountain Ash, CF45 3UU
• Sold Mar 2026£135,000 | 3 Bed House70, Clarence Street, Mountain Ash, CF45 3BD70, Clarence Street, Mountain Ash, CF45 3BD
• Sold Nov 2025£120,000 | 3 Bed House100, Woodfield Terrace, Mountain Ash, CF45 3UT100, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Nov 2025£65,000 | 3 Bed House110, Woodfield Terrace, Mountain Ash, CF45 3UT110, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Sep 2025£116,500 | 3 Bed House20, Ty'R Felin Street, Mountain Ash, CF45 3YR20, Ty'R Felin Street, Mountain Ash, CF45 3YR
• Sold Jun 2025£98,000 | 3 Bed House96, Clarence Street, Mountain Ash, CF45 3BD96, Clarence Street, Mountain Ash, CF45 3BD
• Sold May 2025£37,000 | 3 Bed House123, Penrhiwceiber Road, Mountain Ash, CF45 3SG123, Penrhiwceiber Road, Mountain Ash, CF45 3SG
• Sold Dec 2024£118,500 | 3 Bed House24, Harcourt Terrace, Mountain Ash, CF45 3SD24, Harcourt Terrace, Mountain Ash, CF45 3SD
• Sold Jul 2024£108,000 | 3 Bed House123, Woodfield Terrace, Mountain Ash, CF45 3UT123, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Jul 2024£90,000 | 3 Bed House163, Penrhiwceiber Road, Mountain Ash, CF45 3SG163, Penrhiwceiber Road, Mountain Ash, CF45 3SG
• Sold Apr 2024£117,000 | 3 Bed HouseGlanffrwd Villa, Woodfield Terrace, Mountain Ash, CF45 3UTGlanffrwd Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Jan 2024£135,000 | 3 Bed House136, Penrhiwceiber Road, Mountain Ash, CF45 3SL136, Penrhiwceiber Road, Mountain Ash, CF45 3SL
• Sold Jan 2024£83,000 | 3 Bed House38, Ty'R Felin Street, Mountain Ash, CF45 3YR38, Ty'R Felin Street, Mountain Ash, CF45 3YR
• Sold Nov 2023£110,000 | 3 Bed House187, Penrhiwceiber Road, Mountain Ash, CF45 3SG187, Penrhiwceiber Road, Mountain Ash, CF45 3SG
• Sold Aug 2023£105,000 | 3 Bed House28, Ty'R Felin Street, Mountain Ash, CF45 3YR28, Ty'R Felin Street, Mountain Ash, CF45 3YR
• Sold Feb 2022£130,000 | 3 Bed House32, Mount Pleasant Terrace, Mountain Ash, CF45 3AN32, Mount Pleasant Terrace, Mountain Ash, CF45 3AN
• Sold Jun 2021£85,000 | 3 Bed House2, Prosser Street, Mountain Ash, CF45 3UP2, Prosser Street, Mountain Ash, CF45 3UP
• Sold Feb 2021£84,000 | 3 Bed HouseHafren Villa, Woodfield Terrace, Mountain Ash, CF45 3UTHafren Villa, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Jul 2020£52,000 | 3 Bed House107, Woodfield Terrace, Mountain Ash, CF45 3UT107, Woodfield Terrace, Mountain Ash, CF45 3UT
• Sold Dec 2018£108,000 | 3 Bed HouseBrent Knoll, Woodfield Terrace, Mountain Ash, CF45 3UTBrent Knoll, Woodfield Terrace, Mountain Ash, CF45 3UT

Prosser Street, Mountain Ash, CF45 has a total of 10 addresses. According to our analysis of all the public data, 5, Prosser Street, Mountain Ash is the 5th largest and the 6th most expensive property on the street.

When compared to the postcode district it is £48k less expensive than the average property in CF45.

• Penrhiwceiber

  |

  900 m away
• Mountain Ash

  |

  900 m away
• Fernhill

  |

  2.2 km away

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