£230,000

Rhondda Cynon Taff · 179 sales registered so far in the 12 months to June 2026 · HM Land Registry data
The average (median) house price in Mountain Ash, Rhondda Cynon Taff was £130,000 in the 12 months to June 2026, from 179 sales registered so far. That is 10.2% up on the year before and 49.5% up on five years ago. Terraced homes were the most common sale at a median £125,000; semi-detached £164,995. Homes with a recorded floor area sold for about £141 per square foot (£1,518/m²), based on 383 of 409 sales over two years.
Sales completed to August 2026, as registered by 4 Oct 2026 · headline figures cover the 12 months to June 2026 (later months are still being registered) Mountain Ash = the Mountain Ash post town: CF45 (as recorded in the sales)
| Type | Sales | Median price | £/sq ft | Typical size | Change (1y) |
|---|---|---|---|---|---|
| Semi-detached | 37 | £164,995 | £161 | 980 sq ft | n/a |
| Terraced | 132 | £125,000 | £141 | 861 sq ft | +11.6% |
| 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 | £126,000 | 47 |
| Q4 2025 | £130,000 | 47 |
| Q1 2026 | £145,000 | 47 |
| Q2 2026 | £126,000 | 38 |
| Q3 2026 | £120,000 | 19 |
Median of completed sales per period, not seasonally adjusted; the latest months are still being registered.
Most homes in Mountain Ash sold for £100k–£175k (63% of sales).
| Sold | Address | Type | Price | Floor area | £/sq ft | vs last sale |
|---|---|---|---|---|---|---|
| 20 Aug 2026 | 8, Mount Pleasant Cottages CF45 3AH | Terraced | £73,500 | 646 sq ft | £114 | −8% (2023) |
| 18 Aug 2026 | Ty Haulwen CF45 4EN | Detached | £136,274 | n/a | n/a | n/a |
| 14 Aug 2026 | 21, Mount Pleasant Terrace CF45 3AN | Terraced | £117,500 | 893 sq ft | £132 | +96% (2021) |
| 13 Aug 2026 | 20, Greenfield Terrace CF45 4EB | Terraced | £86,000 | 775 sq ft | £111 | n/a |
| 4 Aug 2026 | 4, Monmouth Street CF45 3NJ | Terraced | £125,000 | 829 sq ft | £151 | n/a |
| 31 Jul 2026 | Glynview, 1, Brook Street CF45 3AR | Semi-detached | £170,000 | 1,259 sq ft | £135 | n/a |
| 31 Jul 2026 | 14, Cynon Terrace CF45 3SU | Terraced | £127,500 | 872 sq ft | £146 | +227% (2020) |
| 31 Jul 2026 | 3, Monmouth Street CF45 3NJ | Terraced | £119,000 | 861 sq ft | £138 | n/a |
| 31 Jul 2026 | 56, Herbert Street CF45 4RG | Terraced | £65,000 | n/a | n/a | n/a |
| 30 Jul 2026 | 40, High Street CF45 3PE | Terraced | £135,000 | 678 sq ft | £199 | +350% (2024) |
| 24 Jul 2026 | 5, Mount Pleasant Place CF45 3DA | Terraced | £99,950 | 635 sq ft | £157 | +113% (2023) |
| 24 Jul 2026 | 36, Rowan Close CF45 4LH | Flats · Leasehold | £79,000 | 592 sq ft | £133 | n/a |
| 17 Jul 2026 | 10, Trem Y Mynydd CF45 4FF | Detached | £285,000 | 1,001 sq ft | £285 | n/a |
| 17 Jul 2026 | 19, Ffordd Y Glowyr CF45 4FD | Terraced | £166,000 | 635 sq ft | £261 | n/a |
| 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 | n/a |
| 6 Jul 2026 | 40, Bron Y Deri CF45 4LL | Semi-detached | £220,000 | 786 sq ft | £280 | n/a |
| 2 Jul 2026 | 39, Phillip Street CF45 4BE | Terraced | £90,000 | 969 sq ft | £93 | n/a |
| 29 Jun 2026 | 24, Eva Street CF45 3LF | Terraced | £135,000 | 893 sq ft | £151 | n/a |
| 29 Jun 2026 | 42, Brynifor CF45 3AB | Semi-detached | £107,500 | 872 sq ft | £123 | n/a |
| 26 Jun 2026 | 13, Margaret Street CF45 4RE | Terraced | £100,000 | 764 sq ft | £131 | n/a |
| 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 | n/a |
The most recent registered sales. Full histories, including every sale since 1995, are on the street pages.
Medians over five years for streets with at least five sales; "most active" counts the last 12 months.
| District | Sales (12m) | Median | £/sq ft | Change (1y) |
|---|---|---|---|---|
| CF45 | 179 | £130,000 | £141 | +10.2% |






Part of Wales
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. That is a range, not a valuation.
Check your addressThe median sold price in Mountain Ash, Rhondda Cynon Taff was £130,000 in the 12 months to June 2026 (179 sales registered so far); the mean was £137,444. We quote medians because a few very expensive or very cheap sales pull a mean around. The Wales median over the same period was £220,000. Portals and the ONS publish different figures because they use different boundaries, windows and adjustments.
Homes sold in Mountain Ash, Rhondda Cynon Taff over the two years to June 2026 with a recorded floor area achieved a median £141 per square foot (interquartile range £113–£171), from 383 sales matched to an Energy Performance Certificate floor area.
In the 12 months to June 2026, the median was 10.2% up on the previous 12 months and 49.5% 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.
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.
Every sale is from HM Land Registry's Price Paid Data for England and Wales, which we re-import monthly. Sales completed to August 2026, as registered by 4 Oct 2026 · headline figures cover the 12 months to June 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 August 2026, as registered by 4 Oct 2026 · headline figures cover the 12 months to June 2026 (later months are still being registered).Next HM Land Registry release ~28 Oct 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.
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