House prices in Mountain Ash
Median value — July 2026
£128,000
Modelled from 4,938 properties Stede tracks in Mountain Ash
Market snapshot
£128,000
Median value
£154,314
Average value
219
Sales in the last 12 months
+5%
Change over the past year
Value over time
- Modelled value
Modelled month by month from the UK House Price Index, averaged across every property type Stede tracks here.
View as a table
| Year | Modelled value |
|---|---|
| 2000 | £24,538 |
| 2001 | £28,539 |
| 2002 | £33,225 |
| 2003 | £43,395 |
| 2004 | £59,232 |
| 2005 | £63,749 |
| 2006 | £72,638 |
| 2007 | £77,895 |
| 2008 | £66,836 |
| 2009 | £66,149 |
| 2010 | £64,289 |
| 2011 | £63,744 |
| 2012 | £63,008 |
| 2013 | £63,763 |
| 2014 | £69,085 |
| 2015 | £71,883 |
| 2016 | £74,128 |
| 2017 | £79,766 |
| 2018 | £82,044 |
| 2019 | £87,650 |
| 2020 | £94,387 |
| 2021 | £106,192 |
| 2022 | £121,390 |
| 2023 | £113,085 |
| 2024 | £121,744 |
| 2025 | £126,324 |
| 2026 | £128,000 |
Property types
- Mid-terrace house73%£118,000
- Semi-detached house15%£174,000
- Detached house8%£307,000
- Property2%£122,000
- Flat / Maisonette1%£81,000
Areas in Mountain Ash
Streets in Mountain Ash
- StreetAbercwmboi Isaf Road3 properties£242,000
- StreetAbercynon Road127 properties£133,000
- StreetAberdare Road61 properties£148,000
- StreetAberffrwd Road17 properties£287,000
- StreetAberffrwd Villas2 properties£319,500
- StreetAberpennar Street29 properties£154,000
- StreetAbertaf Villas1 properties£175,000
- StreetAlbany Street19 properties£105,000
- StreetAlbert Street34 properties£106,000
- StreetAlexandra Place11 properties£391,000
About this area
Mountain Ash, in Mid Glamorgan, is a town. Stede can model 4,938 properties there, from HM Land Registry Price Paid Data and the UK House Price Index.
As of July 2026, Mountain Ash has a median estimated value of £128,000 and an average of £154,314.
Modelled values in Mountain Ash are +5% over the past year and +25% over five years.
The market here is mostly mid-terrace houses, which make up 73% of the properties Stede tracks in Mountain Ash.
219 sales were recorded in Mountain Ash over the past 12 months.
Common questions
What is the average house price in Mountain Ash?
As of July 2026, the average estimated value is £154,314 and the median is £128,000 across 4,938 properties Stede tracks in Mountain Ash. This is not a formal market valuation.
Are house prices in Mountain Ash going up or down?
Modelled values in Mountain Ash are +5% over the past year and +25% over five years, based on the UK House Price Index.
What types of property are in Mountain Ash?
73% of the properties Stede tracks in Mountain Ash are mid-terrace houses. semi-detached houses are next most common, at 15%.
How many properties are in Mountain Ash?
Stede can model 4,938 properties in Mountain Ash, with 219 recorded sales in the past 12 months.
How does Stede calculate house prices for Mountain Ash?
These figures are modelled from HM Land Registry Price Paid Data and the UK House Price Index — the same sources used for every individual property valuation on Stede. Full detail is on the methodology page.
How we calculate this
These figures are modelled from HM Land Registry Price Paid Data and the UK House Price Index — the same sources behind every individual property valuation on Stede.
Read the full methodology and data sources →