« Sold prices in Mountain Ash

Sold prices on Trem Y Dyffryn, Mountain Ash

21 recorded sales · 16 properties · 2015–2025

Homes on Trem Y Dyffryn, Mountain Ash have a median sold price of £160,000 across 21 recorded sales since 2015. Detached homes are the most common here, at a median of £248,000. That's 43% below the England & Wales average of around £280,000. Within Mountain Ash as a whole it is 89% above the town’s average sold price across all recorded sales of £102,425. The most recent sale was £330,000 in Mar 2025; the highest on record was £515,000 in 2023. Recorded prices are roughly up 125% between the earliest and most recent sales.
£160,000
Median sold price
£193,471
Average
£78,500–£515,000
Range
21
Sales recorded

By property type

TypeMedianSales
Detached£248,00012
Semi-detached£200,0001
Flat/Maisonette£78,5001

Sold prices by year on Trem Y Dyffryn

YearMedianSales
2018£87,0004
2019£248,0004
2024£120,0003

Trem Y Dyffryn falls in postcode district CF45 — see sold prices across the wider area.

Properties on Trem Y Dyffryn

£330,000
18, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedMar 2025
£100,000
PLOT 3, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
OtherJul 2024
£160,000
21, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedMar 2024
£515,000
PLOT 5, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedDec 2023
£282,500
30, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedDec 2022
£200,000
24, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
Semi-detachedJul 2022
£305,000
14, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedDec 2021
£160,000
3, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedNov 2020
£260,000
20, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedOct 2019
£236,000
13, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedJul 2019
£380,000
TY GWYN, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedJun 2019
£173,000
28, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedApr 2019
£85,000
OAKMONT, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
OtherSept 2018
£80,000
AMBER LEE HOUSE, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
OtherJan 2018
£78,500
17, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
Flat/MaisonetteDec 2016
£155,900
1, TREM Y DYFFRYN, MOUNTAIN ASH, RHONDDA CYNON TAFF, CF45 4AQ
DetachedDec 2015

Other streets in Mountain Ash

How these figures are calculated. Every sale on this page is a completed transaction from HM Land Registry Price Paid data, registered between 2015 and 2025. We show the median rather than the average wherever there are enough sales, so one unusually high or low sale doesn’t distort the picture. Sales take time to be registered, so the most recent months are provisional. Prices are as recorded and are not adjusted for inflation; a street’s figures reflect the mix of what actually sold there.