According to data from HM Land Registry, 49, Lock Street, Mountain Ash sits on a plot of 198 m².

We have plot size data on 33 out of 33 other houses in the postcode and 49, Lock Street, Mountain Ash sits on the 3rd largest plot.

According to HM Land Registry, 49, Lock Street, Mountain Ash was last sold on 2nd March 2017 for £110,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since March 2017, the market for similar properties has risen by 51.5%.

• Sold Mar 2017£110,000

According to the Land Registry and our network of Estate Agents, there have been 156 sales of properties similar to 49, Lock Street, Mountain Ash within a radius of 1.3 kilometres over the last 2 years.

The most recent example is 20, Fife Street, Mountain Ash, CF45 4TU, a freehold house which sold for £170,000 on the 5th December 2025.

Read more about house prices in CF45.

• Sold Dec 2025£170,000 | 3 Bed House20, Fife Street, Mountain Ash, CF45 4TU20, Fife Street, Mountain Ash, CF45 4TU
• Sold Apr 2023£165,000 | 3 Bed House15, Fife Street, Mountain Ash, CF45 4TU15, Fife Street, Mountain Ash, CF45 4TU
• Sold Mar 2021£143,000 | 3 Bed House7, Fife Street, Mountain Ash, CF45 4TU7, Fife Street, Mountain Ash, CF45 4TU

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Lock Street, Abercynon, Mountain Ash, CF45 has a total of 82 addresses. According to our analysis of all the public data, 49, Lock Street, Mountain Ash is the 24th largest and the 21st most expensive property on the street.

When compared to the postcode district it is £15k more expensive than the average property in CF45.

• Abercynon

  |

  600 m away
• Quakers Yard

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  1.3 km away
• Penrhiwceiber

  |

  3.5 km away

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