Photo: Jaggery · CC BY-SA 2.0The median home in Mountain Ash sells for £119,000
That is the middle of 402 standard sales recorded by HM Land Registry from September 2023 to August 2026, against £277,000 in the typical UK town. The typical home sells for 4.3 times as much as in 1995. Below: what each type of home sells for, the spread of prices, every year since 1995, new builds, the busiest streets and the neighbours. Rents and council tax are on Cost of living.
Three quarters of Mountain Ash’s sales are terraced houses
402 homes sold in three years: 31 detached houses, 58 semi-detached houses, 308 terraced houses and 5 flats and maisonettes.
median sale · 31 sold in 3 years
- Middle half
- £200K–£365K
- Last 12 months
- £330K10 sold
median sale · 58 sold in 3 years
- Middle half
- £118K–£208K
- Last 12 months
- £180K18 sold
median sale · 308 sold in 3 years
- Middle half
- £90K–£133K
- Last 12 months
- £124K86 sold
Flats and maisonettes: 5 sold, median £102K
Too few sales for a card of their own.
A terraced town: three quarters of homes sold are terraced
Standard sales, Sep 2023 to Aug 2026. A median needs 5 sales of a type; “middle half” is the 25th to 75th percentile of 10 or more.
Half of Mountain Ash’s homes sold for between £95K and £150K
One sale in ten was under £75K and one in ten over £215K. 93% sold for under £250K.
The median, £119,000, sits in the £100–150K band
402 standard sales. Each bar is the number sold in that price band; the darker bar holds the median.
The typical home costs 4.3 times as much as in 1995, a slower rise than Wales’s
Land Registry has recorded every sale since 1995. The median went from £29,950 in 1995 to £130,000 in the last 12 months (£85,000 in 2019).
Fewer homes sell than in most years
116 sales in the last 12 months, against 279 in 2003, the busiest year, and 75 in 2009. Sales fell by 73% from 2007 to 2009 in the financial crisis, and the median by 19%. 2021, the stamp duty holiday, saw 51% more sales than 2020.
Mountain Ash costs less than Wales as a whole
Median sale price each calendar year: Mountain Ash, every standard sale in Wales, and the typical UK town (the middle of the town medians, towns of 2,500 or more).
Detached houses rose the most since 1995
| 1995 | 2000 | 2005 | 2010 | 2015 | 2020 | Last 12 months | |
|---|---|---|---|---|---|---|---|
| Detached houses | £58K | £72K | £170K | £80K | £143K | £185K | £330K |
| Semi-detached houses | £51K | £36K | £80K | £113K | £100K | £134K | £180K |
| Terraced houses | £27K | £24K | £55K | £60K | £50K | £75K | £124K |
Calendar years; a year’s median needs 5 sales of the type, so gaps are years with fewer.
Prices are as paid, not adjusted for inflation. Standard (category A) sales only; Land Registry adds a sale when it is registered, so the newest months fill in later.
Hardly any new homes: 0% of sales in the last 12 months
89 new homes have been sold in Mountain Ash since 1995; the share peaked at 9% in 1995.
Calendar years with 10 or more sales, then the last 12 months.
3% of sales were leasehold
Nearly every flat in England and Wales is leasehold; among houses, 2.3% sold leasehold in Mountain Ash. A leasehold buyer owns the home for a fixed term and may pay ground rent and service charges; check the lease before you buy.
Penrhiwceiber Road is Mountain Ash’s busiest street, with 14 sales in three years
23 streets had five or more sales from Sep 2023 to Aug 2026, 6 of them ten or more. A busy street is often a new estate selling its first homes, or a long road of terraces and flats.
| # | Street | Postcode area | Sales | Median | Homes |
|---|---|---|---|---|---|
| 1 | Penrhiwceiber Road | CF45 | 14 | £114,650 | Mixed |
| 2 | Phillip Street | CF45 | 11 | £125,000 | Mostly terraced houses |
| 3 | Morris Avenue | CF45 | 11 | £99,000 | Mostly terraced houses |
| 4 | Ffordd Y Glowyr | CF45 | 10 | £177,525 | Mostly terraced houses |
| 5 | Forest View | CF45 | 10 | £171,725 | Mixed |
| 6 | High Street | CF45 | 10 | £75,500 | Mostly terraced houses |
| 7 | Brynifor | CF45 | 9 | £118,000 | Mostly semi-detached houses |
| 8 | Clarence Street | CF45 | 8 | £125,000 | Mostly terraced houses |
| 9 | Cilhaul Terrace | CF45 | 7 | £130,000 | Mostly terraced houses |
| 10 | Llanwonno Road | CF45 | 7 | £125,000 | Mixed |
| 11 | Coplestone Street | CF45 | 7 | £116,500 | Mostly terraced houses |
| 12 | Church Street | CF45 | 7 | £90,000 | Mostly terraced houses |
| 13 | The Triangle | CF45 | 6 | £164,997 | Mostly terraced houses |
| 14 | Woodfield Terrace | CF45 | 6 | £116,000 | Mostly terraced houses |
| 15 | Albany Street | CF45 | 6 | £110,500 | Mostly terraced houses |
Ffordd Y Glowyr: £177,525
High Street: £75,500
Among streets with five or more sales; the dearest street’s median is 2.4 times the cheapest’s. Street medians mix types: a street of detached houses beats one of flats.
Standard sales with a street name, grouped by street and postcode district (Sep 2023 to Aug 2026); a name used in two districts shows the district. Medians only: we don’t list individual sales.
Mountain Ash is the 28th most expensive of 32 towns in Mid Glamorgan
Mountain Ash is one of Mid Glamorgan’s cheapest towns to buy in; the typical UK town’s median is £277,000.
Towns of 2,500 or more in Mid Glamorgan with 10+ standard sales; each links to its own Housing page.
Mountain Ash’s neighbours
Cheaper nearby: Ferndale.
| Town | Miles | Median | Sold, 12 mo | Since 2016 |
|---|---|---|---|---|
| Mountain Ash | — | £119K | 116 | +83% |
| Aberfan | 1.7 | £120K | 18 | +54% |
| Abercynon | 2.5 | £130K | 55 | +65% |
| Troedyrhiw and Pentrebach | 2.9 | £123K | 30 | +54% |
| Treharris | 3.2 | £136K | 39 | +39% |
| Ferndale | 3.2 | £98K | 47 | +78% |
| Ynysybwl | 3.2 | £132K | 40 | +57% |
| Bedlinog | 3.3 | £100K | 14 | +59% |
Median: standard sales over three years (10+ needed). Since 2016: the median over three years against 2016’s. Miles: centre to centre.
Questions about property prices in Mountain Ash
What is the average house price in Mountain Ash?
The median home in Mountain Ash sold for £119,000 from September 2023 to August 2026, across 402 standard sales (£130,000 in the last 12 months). By type: detached houses £267,500, semi-detached houses £153,500, terraced houses £112,000 and flats and maisonettes £102,000.
Are house prices going up in Mountain Ash?
The median was £120,000 in 2025, up 5% on 2024 (£114,000), and £130,000 in the last 12 months. A town’s median moves with the mix of homes sold each year as well as with prices.
How many homes sell in Mountain Ash each year?
116 standard sales were recorded in the last 12 months, against an average of 173 a year since 2015. Repossessions, company purchases and other non-standard sales aren’t counted.
What are the most expensive streets in Mountain Ash?
Among streets with five or more sales in three years: Ffordd Y Glowyr (CF45, £177,525), Forest View (CF45, £171,725) and Gwernifor Street (CF45, £165,000).
Is Mountain Ash expensive for Mid Glamorgan?
Mountain Ash is the 28th most expensive of 32 towns of 2,500 or more in Mid Glamorgan by median sale price.
Sources: HM Land Registry Price Paid, every standard sale since January 1995 (yearly files of 28 September 2026), inside the ONS 2022 built-up-area boundary by postcode (ONS Postcode Directory) · TownRatings grades: our own summary of the data, ranked against UK towns only. All under the Open Government Licence v3.0.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Postcodes placed with the ONS Postcode Directory (contains OS data © Crown copyright and database right 2026; contains Royal Mail data © Royal Mail copyright and database right 2026).
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.