What is the average house price in Mountain Ash West? £149,009

The average house price in Mountain Ash West is £149,009, based on 51 homes sold in the 12 months to September 2026. Prices are up 25.3% (£30,110) on a year earlier.

1 year change
+25.3%
Sold in 12 months
51
Data up to
September 2026

Sold prices from HM Land Registry, not asking prices. How we calculate this

How much does each type of property cost in Mountain Ash West?

Average sold price by property type, and each type's share of recent sales.

Detached house illustration

Detached

£337,500

126% above the Mountain Ash West average

7.9% of sales

Semi-detached house illustration

Semi-detached

£163,541

10% above the Mountain Ash West average

19.1% of sales

Terraced house illustration

Terraced

£117,699

21% below the Mountain Ash West average

69.8% of sales

Flats house illustration

Flats

£100,500

33% below the Mountain Ash West average

3.2% of sales

Property type trends

Are house prices in Mountain Ash West going up or down?

House prices in Mountain Ash West are rising: up 25.3% (£30,110) over the past year. Over the past 10 years, prices are up 65.0% (£58,675).

Past 12 months

+25.3%

+£30,110

From £118,899 to £149,009

£149,009£118,176
SEPT 2025SEPT 2026

Past 10 years

+65.0%

+£58,675

From £90,334 to £149,009

£149,009£80,171
SEPT 2016SEPT 2026

Quick answers for Mountain Ash West

9 key facts at a glance.

When did prices peak?

£206,666

Highest average, reached in March 2026

How many homes sold?

51

Recorded so far for the 12 months to September 2026

What is the most common price range?

£100k - £150k

38.9% of sales

How many people live in Mountain Ash West?

4,316

3,173 people per square mile · Very High (Census 2021)

Population density is Very High, on a scale from Very Low to Very High.

Usual residents, including communal establishments.

How many households are in Mountain Ash West?

1,945

1,430 households per square mile · Very High (Census 2021)

Household density is Very High, on a scale from Very Low to Very High.

Occupied households, not communal establishments.

How much green space is in Mountain Ash West?

38 m² per resident

More green space per resident than 61% of areas in England and Wales. That's about 5.3 football pitches for every 1,000 residents.

4.6% of the area · 2 public parks. Parks, playing fields, allotments and other public green space, not counting golf courses. Contains OS data © Crown copyright and database right 2026.

What is the crime rate in Mountain Ash West?

101 crimes per 1,000 residents

Very High · +4.5% on the previous year · 12 months to September 2026

Crime rate is Very High, on a scale from Very Low to Very High.

Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk.

What are the most expensive homes sold in Mountain Ash West?

The highest recorded sale prices in Mountain Ash West, from HM Land Registry.

View all expensive houses in Mountain Ash West

How do house prices in Mountain Ash West compare with nearby areas?

Mountain Ash West compared with the 6 nearest other areas in Rhondda Cynon Taf.

Compare Mountain Ash West with a different area

Thinking of buying in Mountain Ash West?

There's a lot to think about. Whether it's a home to live in or a buy-to-let, our free checklist walks you through what to check before you make an offer.

What to check before you buy

Where does this data come from?

Price information is from HM Land Registry, location boundaries are from OpenStreetMap, and households and population are from Nomis Census 2021 postcode estimates (21 March 2021). Parks and green space are from OS Open Greenspace. Contains OS data © Crown copyright and database right 2026. Crime is from police.uk street-level data. Contains public sector information licensed under the Open Government Licence v3.0. Source: police.uk.

Last updated 6 November 2026 at 00:25 with the latest Land Registry data (September 2026). The Mountain Ash West dataset covers 119 postcodes.

Read our full data methodology

Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.

About·Data methodology·Buying checklist·Privacy and cookies·YouTube