House prices in Mountain Ash
Rhondda Cynon Taff · 174 sales registered so far in the 12 months to May 2026 · HM Land Registry data
Average house price in Mountain Ash
The average (median) house price in Mountain Ash, Rhondda Cynon Taff was £130,000 in the 12 months to May 2026, from 174 sales registered so far — 10.2% up on the year before and 51.2% up on five years ago. Terraced homes were the most common sale at a median £125,000; semi-detached £169,950. Homes with a recorded floor area sold for about £141 per square foot (£1,518/m²), based on 373 of 400 sales over two years.
- Median sold price
- £130,000
- 12 months to May 2026
- Half of sales were above this price, half below
- Change on a year ago
- +10.2%
- median vs the previous 12 months
- Shown only when both years have 30+ sales
- Price per sq ft
- £141
- typical range £113–£171
- From 373 of 400 sales with an EPC floor area (2 years)
- Sales registered so far
- 174
- 12 months to May 2026
- Recent months are still being registered; counts are never compared year on year
- vs Wales
- −41%
- Wales median £219,950
- Difference between the two medians
Sales completed to July 2026, as registered by 29 Aug 2026 · headline figures cover the 12 months to May 2026 (later months are still being registered) Mountain Ash = the Mountain Ash post town: CF45 (as recorded in the sales)
Find a street or postcode in Mountain Ash
House prices in Mountain Ash by property type
| Type | Sales | Median price | £/sq ft | Typical size | Change (1y) |
|---|---|---|---|---|---|
| Semi-detached | 31 | £169,950 | £167 | 1,012 sq ft | +17.2% |
| Terraced | 130 | £125,000 | £137 | 883 sq ft | +12.9% |
Mountain Ash house price trend
| Period | Median sold price | Sales |
|---|---|---|
| Q4 2021 | £105,000 | 82 |
| Q1 2022 | £105,000 | 64 |
| Q2 2022 | £110,000 | 74 |
| Q3 2022 | £112,000 | 61 |
| Q4 2022 | £125,000 | 67 |
| Q1 2023 | £110,000 | 45 |
| Q2 2023 | £108,000 | 43 |
| Q3 2023 | £113,000 | 48 |
| Q4 2023 | £110,000 | 44 |
| Q1 2024 | £112,500 | 40 |
| Q2 2024 | £115,000 | 50 |
| Q3 2024 | £112,000 | 73 |
| Q4 2024 | £125,000 | 63 |
| Q1 2025 | £117,000 | 49 |
| Q2 2025 | £118,000 | 45 |
| Q3 2025 | £125,500 | 48 |
| Q4 2025 | £130,000 | 45 |
| Q1 2026 | £142,250 | 44 |
| Q2 2026 | £130,000 | 33 |
| Q3 2026 | £126,250 | 6 |
Median of completed sales per period, not seasonally adjusted; the latest months are still being registered.
What homes in Mountain Ash sold for
Most homes in Mountain Ash sold for £95k–£170k (64% of sales).
Sold house prices in Mountain Ash
| Sold | Address | Type | Price | Floor area | £/sq ft | vs last sale |
|---|---|---|---|---|---|---|
| 17 Jul 2026 | 19, Ffordd Y Glowyr CF45 4FD | Terraced | £166,000 | 635 sq ft | £261 | — |
| 17 Jul 2026 | 71, Clarence Street CF45 3BD | Terraced | £120,000 | 743 sq ft | £162 | +179% (2019) |
| 16 Jul 2026 | 21, Glamorgan Street CF45 3HX | Terraced | £132,500 | 775 sq ft | £171 | +8% (2025) |
| 16 Jul 2026 | 31, William Street CF45 4RW | Terraced | £106,000 | 915 sq ft | £116 | — |
| 6 Jul 2026 | 40, Bron Y Deri CF45 4LL | Semi-detached | £220,000 | 786 sq ft | £280 | — |
| 2 Jul 2026 | 39, Phillip Street CF45 4BE | Terraced | £90,000 | 969 sq ft | £93 | — |
| 29 Jun 2026 | 24, Eva Street CF45 3LF | Terraced | £135,000 | 893 sq ft | £151 | — |
| 29 Jun 2026 | 42, Brynifor CF45 3AB | Semi-detached | £107,500 | 872 sq ft | £123 | — |
| 26 Jun 2026 | 13, Margaret Street CF45 4RE | Terraced | £100,000 | 764 sq ft | £131 | — |
| 19 Jun 2026 | 38, Greenfield Terrace CF45 4TL | Terraced | £235,000 | 1,173 sq ft | £200 | +98% (2022) |
| 19 Jun 2026 | 72, Consort Street CF45 3AU | Terraced | £145,000 | 1,152 sq ft | £126 | +53% (2022) |
| 19 Jun 2026 | 25, Clarence Street CF45 3BB | Terraced | £135,000 | 743 sq ft | £182 | — |
| 18 Jun 2026 | 8, Hamilton Street CF45 3RH | Terraced | £177,500 | 1,141 sq ft | £156 | — |
| 18 Jun 2026 | 21, Rock Street CF45 3LP | Terraced | £112,000 | 958 sq ft | £117 | — |
| 12 Jun 2026 | 26, Arnold Street CF45 4LF | Terraced | £138,500 | 797 sq ft | £174 | +107% (2020) |
| 12 Jun 2026 | 206, Bryntirion CF45 4EJ | Semi-detached | £80,000 | 883 sq ft | £91 | — |
| 10 Jun 2026 | 15, Cliff Street CF45 3LE | Terraced | £103,000 | 624 sq ft | £165 | — |
| 5 Jun 2026 | Flat, 24a, Margaret Street CF45 4RE | Flats · Leasehold | £84,000 | 807 sq ft | £104 | +58% (2020) |
| 4 Jun 2026 | 20, High Street CF45 3PE | Terraced | £75,000 | 721 sq ft | £104 | +10% (2022) |
| 1 Jun 2026 | 41, Church Street CF45 3YB | Terraced | £120,000 | 850 sq ft | £141 | — |
| 29 May 2026 | 18, Forest View CF45 3DU | Flats | £138,000 | 667 sq ft | £207 | +12% (2024) |
| 29 May 2026 | 16, Commercial Street CF45 3PS | Terraced | £122,000 | 990 sq ft | £123 | — |
| 29 May 2026 | 49, Park Street CF45 3YW | Terraced | £90,000 | 797 sq ft | £113 | +31% (2022) |
| 28 May 2026 | 64, Ffordd Y Glowyr CF45 4FD | Terraced | £153,500 | 743 sq ft | £207 | +14% (2019) |
| 28 May 2026 | 104, Abercynon Road CF45 4NE | Semi-detached | £65,000 | — | — | — |
The most recent registered sales. Full histories, including every sale since 1995, are on the street pages.
Streets in Mountain Ash
Most expensive streets
- Trem Y Dyffryn CF45 £282,500· 5 sales
- Grovers Field CF45 £200,000· 5 sales
- Forest View CF45 £190,000· 16 sales
- Ffordd Y Glowyr CF45 £185,050· 17 sales
- Campbell Terrace CF45 £180,000· 5 sales
- Harcourt Road CF45 £170,000· 5 sales
- Richmond Road CF45 £158,000· 7 sales
- Lock Street CF45 £153,750· 8 sales
Most affordable streets
- Cliff Street CF45 £63,500· 6 sales
- Penybryn Terrace CF45 £70,000· 7 sales
- Victoria Street CF45 £74,950· 11 sales
- Fernhill CF45 £75,000· 7 sales
- High Street CF45 £75,500· 20 sales
- Pentwyn Avenue CF45 £77,000· 10 sales
- Strand Street CF45 £79,250· 10 sales
- Tyr Felin Street CF45 £80,000· 13 sales
Most active streets
- Penrhiwceiber Road CF45 4in 12m
- Park Street CF45 4in 12m
- Mountain Ash Road CF45 4in 12m
- Woodfield Terrace CF45 4in 12m
- Ffordd Y Glowyr CF45 4in 12m
- Forest View CF45 4in 12m
- Strand Street CF45 4in 12m
- Clarence Street CF45 4in 12m
Medians over five years for streets with at least five sales; "most active" counts the last 12 months.
Postcode districts in Mountain Ash
| District | Sales (12m) | Median | £/sq ft | Change (1y) |
|---|---|---|---|---|
| CF45 | 174 | £130,000 | £141 | +10.2% |
For sale in Mountain Ash now
Nothing for sale in Mountain Ash on Homello right now.
House prices near Mountain Ash
- Treharris Merthyr Tydfil · 4.5 km 119% of here
- Merthyr Tydfil Wales · 8.1 km 112% of here
- Ferndale Rhondda Cynon Taff · 6 km 76% of here
- Pontypridd Rhondda Cynon Taff · 9.5 km 142% of here
- Porth Rhondda Cynon Taff · 9.3 km 112% of here
- Aberdare Rhondda Cynon Taff · 7.9 km 118% of here
- Tonypandy Rhondda Cynon Taff · 8.3 km 101% of here
- Pentre Rhondda Cynon Taff · 8.6 km 98% of here
- Bargoed Caerphilly · 9.1 km 115% of here
- Hengoed Caerphilly · 9 km 154% of here
Part of Wales
What's my home worth?
A 90 m² (970 sq ft) home in Mountain Ash is worth roughly £109k–£166k at the area's typical £113–£171 per square foot — a range, not a valuation.
Check your addressQuestions about house prices in Mountain Ash
›What is the average house price in Mountain Ash?
The median sold price in Mountain Ash, Rhondda Cynon Taff was £130,000 in the 12 months to May 2026 (174 sales registered so far); the mean was £137,653. We quote medians because a few very expensive or very cheap sales pull a mean around. The Wales median over the same period was £219,950. Portals and the ONS publish different figures because they use different boundaries, windows and adjustments.
›How much is a house in Mountain Ash per square foot?
Homes sold in Mountain Ash, Rhondda Cynon Taff over the two years to May 2026 with a recorded floor area achieved a median £141 per square foot (interquartile range £113–£171), from 373 sales matched to an Energy Performance Certificate floor area.
›Are house prices in Mountain Ash going up or down?
In the 12 months to May 2026, the median was 10.2% up on the previous 12 months and 51.2% up on five years earlier. These compare completed sales registered so far; the most recent months are still being registered, so the latest figures move as late registrations arrive.
›What is the most expensive street in Mountain Ash?
Of streets with at least five sales in the last five years, Trem Y Dyffryn (CF45) has the highest median sold price at £282,500 across 5 sales.
›Where does this data come from and how up to date is it?
Every sale is from HM Land Registry's Price Paid Data for England and Wales, which we re-import monthly. Sales completed to July 2026, as registered by 29 Aug 2026 · headline figures cover the 12 months to May 2026 (later months are still being registered). Floor areas come from Energy Performance Certificates matched by address.
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Sources and method. Sales completed to July 2026, as registered by 29 Aug 2026 · headline figures cover the 12 months to May 2026 (later months are still being registered).Next HM Land Registry release ~28 Sept 2026. Medians unless stated; averages only where 30 or more sales. Category A sales only (standard price-paid transactions), houses and flats.
Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. Floor areas derived from Energy Performance Certificate data © Crown copyright, licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Source: Office for National Statistics licensed under the Open Government Licence v3.0.
How we calculate these figures · Ask us to hide a sale or correct a record