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House prices in Mountain Ash

Rhondda Cynon Taff · 179 sales registered so far in the 12 months to June 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 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.

Median sold price
£130,000
12 months to June 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 383 of 409 sales with an EPC floor area (2 years)
Sales registered so far
179
12 months to June 2026
Recent months are still being registered; counts are never compared year on year
vs Wales
−41%
Wales median £220,000
Difference between the two medians

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)

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House prices in Mountain Ash by property type

TypeSalesMedian price£/sq ftTypical sizeChange (1y)
Semi-detached37£164,995£161 980 sq ftn/a
Terraced132£125,000£141 861 sq ft+11.6%

Mountain Ash house price trend

£50k£100k£150k£200k£250kQ4 2021: £105,000 · 82 salesQ1 2022: £105,000 · 64 salesQ2 2022: £110,000 · 74 salesQ3 2022: £112,000 · 61 salesQ4 2022: £125,000 · 67 salesQ1 2023: £110,000 · 45 salesQ2 2023: £108,000 · 43 salesQ3 2023: £113,000 · 48 salesQ4 2023: £110,000 · 44 salesQ1 2024: £112,500 · 40 salesQ2 2024: £115,000 · 50 salesQ3 2024: £112,000 · 73 salesQ4 2024: £125,000 · 63 salesQ1 2025: £117,000 · 49 salesQ2 2025: £118,000 · 45 salesQ3 2025: £126,000 · 47 salesQ4 2025: £130,000 · 47 sales (provisional)Q1 2026: £145,000 · 47 sales (provisional)Q2 2026: £126,000 · 38 sales (provisional)Q3 2026: £120,000 · 19 sales (provisional)Q4 2021Q4 2022Q4 2023Q4 2024Q4 2025Q3 2026
Mountain Ash median Wales median sales per period still being registered
Mountain Ash: median sold price £105,000 in Q4 2021 to £126,000 in Q3 2025
PeriodMedian sold priceSales
Q4 2021£105,00082
Q1 2022£105,00064
Q2 2022£110,00074
Q3 2022£112,00061
Q4 2022£125,00067
Q1 2023£110,00045
Q2 2023£108,00043
Q3 2023£113,00048
Q4 2023£110,00044
Q1 2024£112,50040
Q2 2024£115,00050
Q3 2024£112,00073
Q4 2024£125,00063
Q1 2025£117,00049
Q2 2025£118,00045
Q3 2025£126,00047
Q4 2025£130,00047
Q1 2026£145,00047
Q2 2026£126,00038
Q3 2026£120,00019

Median of completed sales per period, not seasonally adjusted; the latest months are still being registered.

What homes in Mountain Ash sold for

£75k–£100k
£100k–£125k
£125k–£150k
£150k–£175k
£175k–£200k
£200k–£225k
£225k–£250k
£250k+

Most homes in Mountain Ash sold for £100k–£175k (63% of sales).

Sold house prices in Mountain Ash

SoldAddressTypePriceFloor area£/sq ftvs last sale
20 Aug 20268, Mount Pleasant Cottages CF45 3AH Terraced£73,500646 sq ft £114−8% (2023)
18 Aug 2026Ty Haulwen CF45 4EN Detached£136,274n/a n/an/a
14 Aug 202621, Mount Pleasant Terrace CF45 3AN Terraced£117,500893 sq ft £132+96% (2021)
13 Aug 202620, Greenfield Terrace CF45 4EB Terraced£86,000775 sq ft £111n/a
4 Aug 20264, Monmouth Street CF45 3NJ Terraced£125,000829 sq ft £151n/a
31 Jul 2026Glynview, 1, Brook Street CF45 3AR Semi-detached£170,0001,259 sq ft £135n/a
31 Jul 202614, Cynon Terrace CF45 3SU Terraced£127,500872 sq ft £146+227% (2020)
31 Jul 20263, Monmouth Street CF45 3NJ Terraced£119,000861 sq ft £138n/a
31 Jul 202656, Herbert Street CF45 4RG Terraced£65,000n/a n/an/a
30 Jul 202640, High Street CF45 3PE Terraced£135,000678 sq ft £199+350% (2024)
24 Jul 20265, Mount Pleasant Place CF45 3DA Terraced£99,950635 sq ft £157+113% (2023)
24 Jul 202636, Rowan Close CF45 4LH Flats · Leasehold£79,000592 sq ft £133n/a
17 Jul 202610, Trem Y Mynydd CF45 4FF Detached£285,0001,001 sq ft £285n/a
17 Jul 202619, Ffordd Y Glowyr CF45 4FD Terraced£166,000635 sq ft £261n/a
17 Jul 202671, Clarence Street CF45 3BD Terraced£120,000743 sq ft £162+179% (2019)
16 Jul 202621, Glamorgan Street CF45 3HX Terraced£132,500775 sq ft £171+8% (2025)
16 Jul 202631, William Street CF45 4RW Terraced£106,000915 sq ft £116n/a
6 Jul 202640, Bron Y Deri CF45 4LL Semi-detached£220,000786 sq ft £280n/a
2 Jul 202639, Phillip Street CF45 4BE Terraced£90,000969 sq ft £93n/a
29 Jun 202624, Eva Street CF45 3LF Terraced£135,000893 sq ft £151n/a
29 Jun 202642, Brynifor CF45 3AB Semi-detached£107,500872 sq ft £123n/a
26 Jun 202613, Margaret Street CF45 4RE Terraced£100,000764 sq ft £131n/a
19 Jun 202638, Greenfield Terrace CF45 4TL Terraced£235,0001,173 sq ft £200+98% (2022)
19 Jun 202672, Consort Street CF45 3AU Terraced£145,0001,152 sq ft £126+53% (2022)
19 Jun 202625, Clarence Street CF45 3BB Terraced£135,000743 sq ft £182n/a

The most recent registered sales. Full histories, including every sale since 1995, are on the street pages.

Streets in Mountain Ash

Most expensive streets

  1. Trem Y Dyffryn CF45 £282,500· 5 sales
  2. Forest View CF45 £190,000· 16 sales
  3. Ffordd Y Glowyr CF45 £185,050· 17 sales
  4. Campbell Terrace CF45 £180,000· 5 sales
  5. Richmond Road CF45 £158,000· 7 sales
  6. Lock Street CF45 £155,000· 7 sales
  7. The Triangle CF45 £150,000· 9 sales
  8. Gwernifor Street CF45 £150,000· 7 sales

Most affordable streets

  1. Penybryn Terrace CF45 £74,000· 6 sales
  2. Victoria Street CF45 £74,950· 11 sales
  3. High Street CF45 £75,000· 21 sales
  4. Fernhill CF45 £75,000· 7 sales
  5. Pentwyn Avenue CF45 £79,000· 9 sales
  6. Strand Street CF45 £79,250· 10 sales
  7. Tyr Felin Street CF45 £80,000· 13 sales
  8. The Poplars CF45 £80,000· 8 sales

Most active streets

  1. Mountain Ash Road CF45 5in 12m
  2. Penrhiwceiber Road CF45 5in 12m
  3. Park Street CF45 4in 12m
  4. Greenfield Terrace CF45 4in 12m
  5. Ffordd Y Glowyr CF45 4in 12m
  6. Forest View CF45 4in 12m
  7. Clarence Street CF45 4in 12m
  8. Strand 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

DistrictSales (12m)Median£/sq ftChange (1y)
CF45179£130,000£141+10.2%

For sale in Mountain Ash now

House prices near Mountain Ash

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. That is a range, not a valuation.

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Questions 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 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.

›How much is a house in Mountain Ash per square foot?

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.

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

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.

›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 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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