According to data from HM Land Registry, 12, Austin Street, Mountain Ash sits on a plot of 224 m².

We have plot size data on 13 out of 14 other houses in the postcode and 12, Austin Street, Mountain Ash sits on the 4th largest plot.

12, Austin Street, Mountain Ash has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 16 Nov 2020.

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, 12, Austin Street, Mountain Ash was last sold on 8th January 2021 for £139,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since January 2021, the market for similar properties has risen by 27.8%.

• Sold Jan 2021£139,000

According to the Land Registry and our network of Estate Agents, there have been 47 sales of properties similar to 12, Austin Street, Mountain Ash within a radius of 660 metres since 2018.

The most recent example is 18, Richmond Road, Mountain Ash, CF45 4AN, a freehold house which sold for £210,000 on the 31st July 2025.

Read more about house prices in CF45.

• Sold Jul 2025£210,000 | 4 Bed House18, Richmond Road, Mountain Ash, CF45 4AN18, Richmond Road, Mountain Ash, CF45 4AN
• Sold Apr 2025£170,000 | 3 Bed House8, Harcourt Road, Mountain Ash, CF45 3PY8, Harcourt Road, Mountain Ash, CF45 3PY
• Sold Sep 2024£180,000 | 3 Bed House7, Campbell Terrace, Mountain Ash, CF45 4AE7, Campbell Terrace, Mountain Ash, CF45 4AE
• Sold Aug 2024£200,000 | 4 Bed House9, Harcourt Road, Mountain Ash, CF45 3PY9, Harcourt Road, Mountain Ash, CF45 3PY
• Sold Mar 2024£215,000 | 3 Bed House17, Aberffrwd Road, Mountain Ash, CF45 4AR17, Aberffrwd Road, Mountain Ash, CF45 4AR
• Sold Oct 2023£210,000 | 3 Bed House11, Fox Street, Mountain Ash, CF45 4AG11, Fox Street, Mountain Ash, CF45 4AG
• Sold Feb 2023£150,000 | 3 Bed House12, Richmond Road, Mountain Ash, CF45 4AN12, Richmond Road, Mountain Ash, CF45 4AN
• Sold Dec 2022£180,000 | 3 Bed House14, Fox Street, Mountain Ash, CF45 4AG14, Fox Street, Mountain Ash, CF45 4AG
• Sold Dec 2022£180,000 | 3 Bed House23, Campbell Terrace, Mountain Ash, CF45 4AE23, Campbell Terrace, Mountain Ash, CF45 4AE
• Sold Aug 2022£185,000 | 3 Bed House19, Campbell Terrace, Mountain Ash, CF45 4AE19, Campbell Terrace, Mountain Ash, CF45 4AE
• Sold Jul 2022£164,000 | 4 Bed House30, Richmond Road, Mountain Ash, CF45 4AN30, Richmond Road, Mountain Ash, CF45 4AN
• Sold Feb 2022£178,000 | 3 Bed House8, Granville Terrace, Mountain Ash, CF45 4AL8, Granville Terrace, Mountain Ash, CF45 4AL
• Sold Jan 2022£167,500 | 3 Bed House20, Campbell Terrace, Mountain Ash, CF45 4AE20, Campbell Terrace, Mountain Ash, CF45 4AE
• Sold Jan 2022£142,000 | 4 Bed House17, Fox Street, Mountain Ash, CF45 4AG17, Fox Street, Mountain Ash, CF45 4AG
• Sold Apr 2021£146,000 | 3 Bed House8, Campbell Terrace, Mountain Ash, CF45 4AE8, Campbell Terrace, Mountain Ash, CF45 4AE
• Sold Apr 2021£160,000 | 4 Bed House39, Allen Street, Mountain Ash, CF45 4BB39, Allen Street, Mountain Ash, CF45 4BB
• Sold Jan 2021£152,000 | 3 Bed House13, Campbell Terrace, Mountain Ash, CF45 4AE13, Campbell Terrace, Mountain Ash, CF45 4AE
• Sold Dec 2019£169,950 | 4 Bed House22, Campbell Terrace, Mountain Ash, CF45 4AE22, Campbell Terrace, Mountain Ash, CF45 4AE
• Sold Feb 2019£98,800 | 3 Bed House56, Allen Street, Mountain Ash, CF45 4BB56, Allen Street, Mountain Ash, CF45 4BB
• Sold Oct 2018£135,000 | 4 Bed House8, Austin Street, Mountain Ash, CF45 4AF8, Austin Street, Mountain Ash, CF45 4AF

Austin Street, Mountain Ash, CF45 has a total of 14 addresses. According to our analysis of all the public data, 12, Austin Street, Mountain Ash is the 7th largest and the 7th most expensive property on the street.

When compared to the postcode district it is £50k more expensive than the average property in CF45.

• Mountain Ash

  |

  500 m away
• Fernhill

  |

  1.2 km away
• Penrhiwceiber

  |

  2.1 km away

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