According to data from HM Land Registry, 14, Jeffrey Street, Mountain Ash sits on a plot of 129 m².

We have plot size data on 12 out of 14 other houses in the postcode and 14, Jeffrey Street, Mountain Ash sits on the 5th largest plot.

14, Jeffrey Street, Mountain Ash has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 14 Sep 2012.

The property is not connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 14, Jeffrey Street, Mountain Ash was last sold on 6th May 2004 for £80,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

• Sold May 2004£80,000

According to the Land Registry and our network of Estate Agents, there have been 167 sales of properties similar to 14, Jeffrey Street, Mountain Ash within a radius of 550 metres since 2020.

The most recent example is Aberpennar Cottage, Dover Street, Mountain Ash, CF45 3HY, a freehold house which sold for £142,500 on the 4th February 2026.

Read more about house prices in CF45.

• Sold Feb 2026£142,500 | 3 Bed HouseAberpennar Cottage, Dover Street, Mountain Ash, CF45 3HYAberpennar Cottage, Dover Street, Mountain Ash, CF45 3HY
• Sold Nov 2025£115,000 | 3 Bed House81, Duffryn Street, Mountain Ash, CF45 3HR81, Duffryn Street, Mountain Ash, CF45 3HR
• Sold Oct 2025£140,000 | 3 Bed House59, Arnold Street, Mountain Ash, CF45 4LF59, Arnold Street, Mountain Ash, CF45 4LF
• Sold Aug 2025£126,000 | 3 Bed House19, Beckett Street, Mountain Ash, CF45 4AW19, Beckett Street, Mountain Ash, CF45 4AW
• Sold Jul 2025£49,000 | 3 Bed House49, Commercial Street, Mountain Ash, CF45 3PS49, Commercial Street, Mountain Ash, CF45 3PS
• Sold Jul 2025£115,000 | 3 Bed House13, London Street, Mountain Ash, CF45 4BN13, London Street, Mountain Ash, CF45 4BN
• Sold Feb 2025£122,000 | 3 Bed House21, Darran Road, Mountain Ash, CF45 3HT21, Darran Road, Mountain Ash, CF45 3HT
• Sold Jan 2025£81,500 | 3 Bed House2, Cliff Street, Mountain Ash, CF45 3LE2, Cliff Street, Mountain Ash, CF45 3LE
• Sold Oct 2024£85,000 | 3 Bed House3, London Street, Mountain Ash, CF45 4BN3, London Street, Mountain Ash, CF45 4BN
• Sold Jun 2024£115,000 | 3 Bed House11, Seymour Street, Mountain Ash, CF45 4BL11, Seymour Street, Mountain Ash, CF45 4BL
• Sold May 2024£143,000 | 3 Bed House8, Copley Street, Mountain Ash, CF45 4AS8, Copley Street, Mountain Ash, CF45 4AS
• Sold Jan 2024£105,000 | 3 Bed House12, Phillip Street, Mountain Ash, CF45 4BE12, Phillip Street, Mountain Ash, CF45 4BE
• Sold Apr 2023£94,000 | 3 Bed House10, Jeffrey Street, Mountain Ash, CF45 4BS10, Jeffrey Street, Mountain Ash, CF45 4BS
• Sold Feb 2023£110,000 | 3 Bed House62, Arnold Street, Mountain Ash, CF45 4LF62, Arnold Street, Mountain Ash, CF45 4LF
• Sold Mar 2022£115,000 | 3 Bed House56, Phillip Street, Mountain Ash, CF45 4BG56, Phillip Street, Mountain Ash, CF45 4BG
• Sold Sep 2021£107,500 | 3 Bed House37, Arnold Street, Mountain Ash, CF45 4LF37, Arnold Street, Mountain Ash, CF45 4LF
• Sold May 2021£109,000 | 3 Bed House30, Phillip Street, Mountain Ash, CF45 4BE30, Phillip Street, Mountain Ash, CF45 4BE
• Sold Oct 2020£90,000 | 3 Bed House11, Arnold Street, Mountain Ash, CF45 4LF11, Arnold Street, Mountain Ash, CF45 4LF
• Sold Jul 2020£112,000 | 3 Bed House51, Phillip Street, Mountain Ash, CF45 4BG51, Phillip Street, Mountain Ash, CF45 4BG
• Sold Mar 2020£85,000 | 3 Bed House13, Phillip Street, Mountain Ash, CF45 4BE13, Phillip Street, Mountain Ash, CF45 4BE

Jeffrey Street, Mountain Ash, CF45 has a total of 16 addresses. According to our analysis of all the public data, 14, Jeffrey Street, Mountain Ash is the 7th largest and the 8th most expensive property on the street.

When compared to the postcode district it is £29k less expensive than the average property in CF45.

• Mountain Ash

  |

  300 m away
• Fernhill

  |

  1.3 km away
• Penrhiwceiber

  |

  1.9 km away

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