Mountain Ash house prices are built from 7,972 sales lodged with HM Land Registry, the oldest in 1995 and the most recent on 26 Jun 2026. The median price paid across the whole record is £60,000. Across the 10 years from 2016 to 2026 the median moved +96.6% in cash — but once inflation is taken out, the change in 2026 money is +40.8%.
Median price paid
£60,000
Change in cash, 2016–2026
+96.6%
Change in real terms
+40.8%
Median per m²
£753
HM Land Registry7,972 sales1,010 with floor areaLatest sale 26 Jun 2026
Section 01
How Mountain Ash prices moved
The chart tracks the median Mountain Ash house price for every year with a recorded sale, from 1995 to 2026. The dashed line restates each year in 2026 money, so the two lines separate exactly as much as inflation has eroded the cash figure.
| Decade | Years with sales | Median paid | In today's money |
|---|---|---|---|
| 1990s | 5 | £27,950 | £62,062 |
| 2000s | 10 | £48,995 | £89,254 |
| 2010s | 10 | £65,000 | £91,650 |
| 2020s | 7 | £115,000 | £117,500 |
The highest yearly median on record for Mountain Ash is £142,500 in 2026; the lowest is £25,000 in 1997. Across the full 32-year record the cash median has moved from £30,000 to £142,500.
In 2026 money that first median is worth £66,614, so the real change over the whole record is +113.9% — about +2.48% a year after inflation. Cash growth and real growth are not the same story, and the gap is the part most price reports leave out.
Over the last decade alone the difference is stark: +96.6% in cash against +40.8% once inflation is removed. A buyer who sold at the end of that decade would have needed the real figure, not the headline one, to know whether they had actually gained.
Section 02
The most recent sales
Every row is a completed sale as lodged with HM Land Registry. The right-hand column restates the price in 2026 money, which is the only fair way to compare a sale from the 1990s with one from last year.
| Address | Sold | Type | Price paid | In today's money |
|---|---|---|---|---|
| 13 Margaret Street | 26 Jun 2026 | Terraced | £100,000 | £100,000 |
| 8 Hamilton Street | 18 Jun 2026 | Terraced | £177,500 | £177,500 |
| 206 Bryntirion | 12 Jun 2026 | Semi-detached | £80,000 | £80,000 |
| 15 Cliff Street | 10 Jun 2026 | Terraced | £103,000 | £103,000 |
| 20 High Street | 4 Jun 2026 | Terraced | £75,000 | £75,000 |
| 41 Church Street | 1 Jun 2026 | Terraced | £120,000 | £120,000 |
| 18 Forest View | 29 May 2026 | Flat or maisonette | £138,000 | £138,000 |
| 16 Commercial Street | 29 May 2026 | Terraced | £122,000 | £122,000 |
| 49 Park Street | 29 May 2026 | Terraced | £90,000 | £90,000 |
| 64 Ffordd Y Glowyr | 28 May 2026 | Terraced | £153,500 | £153,500 |
| 31 Gertrude Street | 22 May 2026 | Terraced | £170,000 | £170,000 |
| 33 Dover Street | 22 May 2026 | Terraced | £115,000 | £115,000 |
| 114 Penrhiwceiber Road | 15 May 2026 | Semi-detached | £120,000 | £120,000 |
| 9 Grovers Field | 14 May 2026 | Detached | £235,000 | £235,000 |
| TY TENBY, 22 Campbell Terrace | 8 May 2026 | Semi-detached | £235,000 | £235,000 |
| 51 Aberdare Road | 8 May 2026 | Terraced | £150,000 | £150,000 |
| 12 Beckett Street | 8 May 2026 | Terraced | £150,000 | £150,000 |
| 17 Homerton Street | 8 May 2026 | Terraced | £95,000 | £95,000 |
| 11 Gwendoline Terrace | 1 May 2026 | Terraced | £182,000 | £182,000 |
| 26 Woodland Terrace | 1 May 2026 | Terraced | £130,000 | £130,000 |
| 12 Herbert Street | 24 Apr 2026 | Terraced | £163,000 | £163,000 |
| 9 Clarence Street | 17 Apr 2026 | Terraced | £130,000 | £130,000 |
| 14 Lyndhurst Street | 13 Apr 2026 | Terraced | £157,500 | £157,500 |
| 4 Glamorgan Street | 7 Apr 2026 | Terraced | £102,000 | £102,000 |
| 13 Gorsedd Street | 31 Mar 2026 | Terraced | £155,000 | £155,000 |
Section 03
Homes that sold twice
These addresses appear in the register more than once, so the same bricks are being priced twice. That makes them the strongest evidence of what actually happened to Mountain Ash values — no mix of property types can flatter the number.
| Address | First recorded sale | Most recent sale | Cash a year | Real a year |
|---|---|---|---|---|
| 13 Margaret Street | £25,000 (2002) | £100,000 (2026) | +5.9% | +3.1% |
| 8 Hamilton Street | £39,000 (2014) | £177,500 (2026) | +13.5% | +10.1% |
| 206 Bryntirion | £59,950 (2011) | £80,000 (2026) | +1.9% | -0.9% |
| 15 Cliff Street | £27,500 (1998) | £103,000 (2026) | +4.8% | +2.1% |
| 20 High Street | £15,000 (1996) | £75,000 (2026) | +5.5% | +2.8% |
| 41 Church Street | £21,000 (1999) | £120,000 (2026) | +6.7% | +3.9% |
| 49 Park Street | £12,000 (2002) | £90,000 (2026) | +8.8% | +5.8% |
| 18 Forest View | £94,000 (2007) | £138,000 (2026) | +2.0% | -0.9% |
| 16 Commercial Street | £61,000 (2004) | £122,000 (2026) | +3.2% | +0.3% |
| 64 Ffordd Y Glowyr | £134,995 (2019) | £153,500 (2026) | +1.9% | -2.0% |
| 31 Gertrude Street | £70,000 (2014) | £170,000 (2026) | +7.7% | +4.5% |
| 33 Dover Street | £40,000 (2019) | £115,000 (2026) | +16.3% | +11.9% |
Section 04
What sells here
The mix of property types explains a large part of any area's median. Mountain Ash is dominated by the type at the top of this table, so its overall median leans that way.
| Property type | Sales | Share | Median paid | Range |
|---|---|---|---|---|
| Terraced | 6,102 | 76.5% | £53,500 | £1,830 – £390,000 |
| Semi-detached | 1,151 | 14.4% | £80,000 | £5,000 – £375,000 |
| Detached | 632 | 7.9% | £157,500 | £7,000 – £759,750 |
| Flat or maisonette | 87 | 1.1% | £57,500 | £8,000 – £138,000 |
Section 05
How big homes are in Mountain Ash
Energy Performance Certificates record a floor area for every home that has been surveyed, sold or let — far more homes than have changed hands. 2,581 certificates cover Mountain Ash, and their median floor area is 78 m².
The median across the whole register is 76 m², so homes here are larger than average — +2.6%. Size explains a large part of why one area's median price sits above another's, which is why the price per square metre further up this page is the fairer comparison.
| Measure | Floor area | Sample |
|---|---|---|
| Median floor area | 78 m² | about 840 sq ft |
| Smaller quarter, up to | 64 m² | about 689 sq ft |
| Larger quarter, from | 88 m² | about 947 sq ft |
| Under 60 m² | 18.9% | 489 homes |
| 150 m² and over | 2.2% | 56 homes |
Section 06
Ownership and new build in Mountain Ash
387 of the sales on record are leasehold and 7,585 freehold — 4.9% of the market. Tenure is not a detail: a leasehold flat and a freehold house are different assets, and mixing them into one median hides the difference.
The median leasehold sale is £44,000 and the median freehold sale £61,000 — a gap of +38.6%. Most of that gap is property type rather than tenure itself: leasehold here is largely flats, freehold largely houses.
| Category | Sales | Share | Median paid |
|---|---|---|---|
| Leasehold | 387 | 4.9% | £44,000 |
| Freehold | 7,585 | 95.1% | £61,000 |
| New build | 186 | 2.3% | £98,995 |
| Existing home | 7,786 | 97.7% | £60,000 |
New builds sold for more than the median existing home — +65.0%. A new-build premium is normal: the buyer gets a warranty and nothing to fix, and the price is set by a developer rather than negotiated between two households.
A further 775 transfers for this area are on the register but are left out of every figure above. HM Land Registry marks them as additional price paid entries: repossessions, buy-to-let portfolio moves, transfers between companies or family, and sales at a discount such as right to buy. They are real records but they are not open-market prices, and including them would drag the median somewhere no buyer ever paid.
Section 09
How Mountain Ash compares
The median across the whole archive is £157,500. Mountain Ash sits below that national figure — -61.9%.
Where an EPC floor area could be matched to the sale, the median works out at £753 per square metre, across 1,010 of the 7,972 sales on record. Price per square metre is the only figure that compares a two-bed flat with a four-bed house honestly.
The full range on record runs from £1,830 to £759,750. Extremes usually mean something unusual — a plot sold without a house on it, a transfer between family members, or a very large property — so the median is the number to trust.
Section 10
Nearby on the record
Streets in Mountain Ash
- Park Street229 sales
- Abercynon Road201 sales
- Penrhiwceiber Road194 sales
- Pentwyn Avenue143 sales
- Woodfield Terrace135 sales
- Cardiff Road134 sales
- Woodland Street131 sales
- Forest View129 sales
- Phillip Street126 sales
- High Street120 sales
- Aberdare Road113 sales
- Greenfield Terrace111 sales
- Mountain Ash Road101 sales
- Duffryn Street95 sales
- Maes Y Ffynnon95 sales
- Clarence Street91 sales
- Grovers Field90 sales
- Rheola Street89 sales
- Ffordd Y Glowyr84 sales
- Lock Street83 sales
- Victoria Street83 sales
- Herbert Street79 sales
- Tyr Felin Street79 sales
- Sierra Pines78 sales
- Avondale Street76 sales
- Park View75 sales
- Glanlay Street72 sales
- Consort Street71 sales
- Napier Street71 sales
- Harcourt Terrace68 sales
- Strand Street68 sales
- Church Street67 sales
- Allen Street65 sales
- Arnold Street64 sales
- Thomas Street61 sales
- Dilwyn Street60 sales
- Seymour Street60 sales
- Brynifor59 sales
- Margaret Street56 sales
- Glancynon Terrace55 sales
- Fife Street54 sales
- London Street54 sales
- The Triangle54 sales
- Albert Street51 sales
- Llanwonno Road51 sales
- Coplestone Street50 sales
- Cilhaul Terrace49 sales
- Morris Avenue48 sales
- Commercial Street47 sales
- Mary Street47 sales
- Mount Pleasant Terrace47 sales
- Tanycoed Street47 sales
- Arthur Street45 sales
- Bailey Street45 sales
- Bryntirion45 sales
- Glamorgan Street45 sales
- Trem Y Dyffryn45 sales
- Aberpennar Street44 sales
- Glyngwyn Street43 sales
- King Street43 sales
Postcode districts covering Mountain Ash
- CF45£60,000 median
Quick answers
Common questions about this data
What is the average house price in Mountain Ash?
The median price paid in Mountain Ash across every sale on the register is £60,000. The median is used rather than the mean because a handful of very large sales would otherwise drag the average away from what a typical buyer paid.
How many homes have sold in Mountain Ash?
7,972 sales are on record for Mountain Ash, the most recent completing on 26 Jun 2026. Every one is a completed transfer lodged with HM Land Registry, not an asking price or an estimate.
Have Mountain Ash house prices actually risen?
In cash, the median rose +96.6% between 2016 and 2026. In 2026 money — that is, after inflation — the change is +40.8%. Both numbers are true; only the second one tells you whether buying here preserved value.
When were Mountain Ash house prices at their highest?
The highest yearly median on record is £142,500, set in 2026. That is the cash figure; measured in 2026 money the peak may fall in a different year, because inflation reshapes the series.
What is the price per square metre in Mountain Ash?
£753 per square metre, from the 1,010 sales where an EPC floor area could be matched to the address. Price per square metre strips out size, so a flat and a house can be compared on the same basis.
How current is this data?
The latest sale shown here completed on 26 Jun 2026. HM Land Registry publishes Price Paid Data monthly and a sale can take a month or two to appear after completion, so the most recent weeks are always incomplete.
Cite this page: Sold Price History, “Mountain Ash house prices”, 2026. Source: HM Land Registry Price Paid Data © Crown copyright and database right, used under the Open Government Licence v3.0. Inflation adjustment: ONS CPIH.