House prices on Clas Y Dderwen
Median value — November 2026
£152,000
Modelled from 16 properties Stede tracks in Clas Y Dderwen
Market snapshot
£152,000
Median value
£162,188
Average value
0
Sales in the last 12 months
+3%
Change over the past year
Value over time
- Modelled value
- Projected
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 | £24,959 |
| 2001 | £29,028 |
| 2002 | £33,794 |
| 2003 | £44,138 |
| 2004 | £60,247 |
| 2005 | £64,841 |
| 2006 | £73,882 |
| 2007 | £79,228 |
| 2008 | £67,981 |
| 2009 | £67,281 |
| 2010 | £65,389 |
| 2011 | £64,835 |
| 2012 | £64,087 |
| 2013 | £64,854 |
| 2014 | £70,267 |
| 2015 | £73,113 |
| 2016 | £75,397 |
| 2017 | £81,131 |
| 2018 | £83,449 |
| 2019 | £89,151 |
| 2020 | £96,002 |
| 2021 | £108,010 |
| 2022 | £123,468 |
| 2023 | £115,020 |
| 2024 | £123,828 |
| 2025 | £128,493 |
| 2026 | £131,000 |
There aren't enough recorded sales on Clas Y Dderwen alone to model a trend for it, so this line shows Mountain Ash instead.
Property types
- Mid-terrace house75%£145,000
- Semi-detached house25%£157,500
Recent sales
- 16 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£270,000 · 2024£299,000
- 7 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£109,995 · 2024£121,000
- 11 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£113,000 · 2021£136,000
- 1 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£97,500 · 2020£135,000
- 17 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£109,000 · 2019£165,000
- 9 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£115,000 · 2017£172,000
- 15 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£94,600 · 2010£154,000
- 6 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£90,000 · 2006£134,000
Addresses in Clas Y Dderwen
- 1 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£97,500 · 2020£135,000
- 11 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£113,000 · 2021£136,000
- 12 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£44,950 · 2002£177,000
- 13 Clas Y Dderwen, Mountain Ash, Cynon Valley, Mid Glamorgan, CF45 4LN£36,000 · 1998£126,000
- 15 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£94,600 · 2010£154,000
- 16 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£270,000 · 2024£299,000
- 17 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£109,000 · 2019£165,000
- 18 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£85,000 · 2004£132,000
- 2 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£42,106 · 2000£128,000
- 21 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£50,000 · 1999£217,000
- 3 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£41,000 · 2000£176,000
- 4 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£38,000 · 1997£150,000
- 5 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£42,495 · 2001£173,000
- 6 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£90,000 · 2006£134,000
- 7 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£109,995 · 2024£121,000
- 9 Clas Y Dderwen, Mountain Ash, Rhondda Cynon Taff, CF45 4LN£115,000 · 2017£172,000
About this area
Clas Y Dderwen, in Mountain Ash, is a street. Stede can model 16 properties there, from HM Land Registry Price Paid Data and the UK House Price Index.
As of November 2026, Clas Y Dderwen has a median estimated value of £152,000 and an average of £162,188.
Modelled values in Clas Y Dderwen are +3% over the past year and +24% over five years.
The market here is mostly mid-terrace houses, which make up 75% of the properties Stede tracks in Clas Y Dderwen.
Common questions
What is the average house price in Clas Y Dderwen?
As of November 2026, the average estimated value is £162,188 and the median is £152,000 across 16 properties Stede tracks in Clas Y Dderwen. This is not a formal market valuation.
Are house prices in Clas Y Dderwen going up or down?
Modelled values in Clas Y Dderwen are +3% over the past year and +24% over five years, based on the UK House Price Index.
What types of property are in Clas Y Dderwen?
75% of the properties Stede tracks in Clas Y Dderwen are mid-terrace houses. semi-detached houses are next most common, at 25%.
How many properties are in Clas Y Dderwen?
Stede can model 16 properties in Clas Y Dderwen, with 0 recorded sales in the past 12 months.
How does Stede calculate house prices for Clas Y Dderwen?
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 →