The Triangle, Mountain Ash
House prices, sold prices and local information for CF45 4BA.
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At a glance
12 property sales on The Triangle, Mountain Ash have been recorded by HM Land Registry since 2017. In the last 12 months 3 homes sold here for an average of £153,332. Most sales here are terraced homes, which have sold for an average of £136,545. That is 3% above the Mountain Ash average of £148,988 over the same period. 1 home here has sold more than once since 2017; 1 of them sold for more the second time. By property type, sales here have been 92% terraced, 8% detached. Recorded sale prices on The Triangle range from £85,000 to £242,000. Every home sold here was sold freehold. Of 32 streets in Mountain Ash with at least two sales in the last year, The Triangle ranks 11th for average price.
House prices on The Triangle compared
Average sale price over the last 12 months. See all CF45 house prices.
Average sale price by year
Tenure: 100% freehold and 0% leasehold across 13 recorded sales.
Prices by property type
| Type | Sales | Average price | Last sold |
|---|---|---|---|
| Terraced | 11 | £136,545 | 20 Feb 2026 |
| Detached | 1 | £242,000 | 21 Jun 2024 |
Sold prices on The Triangle
| Address | Date | Price | Type | Tenure |
|---|---|---|---|---|
| 10, The Triangle CF45 4BA | 20 Feb 2026 | £160,000 | Terraced | Freehold |
| 34, The Triangle CF45 4BA | 24 Nov 2025 | £169,995 | Terraced | Freehold |
| 26, The Triangle CF45 4BA | 31 Oct 2025 | £130,000 | Terraced | Freehold |
| 27, The Triangle CF45 4BA | 18 Jul 2025 | £175,000 | Terraced | Freehold |
| 39, The Triangle CF45 4BA | 21 Jun 2024 | £242,000 | Detached | Freehold |
| 24, The Triangle CF45 4BA | 15 Mar 2024 | £144,000 | Terraced | Freehold |
| 29, The Triangle CF45 4BA | 7 Jun 2022 | £149,995 | Terraced | Freehold |
| 21, The Triangle CF45 4BA | 7 Jan 2022 | £85,000 | Terraced | Freehold |
| 25, The Triangle CF45 4BA | 16 Dec 2021 | £150,000 | Terraced | Freehold |
| 30, The Triangle CF45 4BA | 26 Feb 2021 | £123,000 | Terraced | Freehold |
| 13, The Triangle CF45 4BA | 23 Aug 2019 | £71,500 | Terraced | Freehold |
| 27, The Triangle CF45 4BA | 7 Jan 2019 | £105,000 | Terraced | Freehold |
| 31, The Triangle CF45 4BA | 27 Jul 2017 | £110,000 | Terraced | Freehold |
Sale prices are as recorded by HM Land Registry. Some sales (for example repossessions and company purchases) are listed but left out of the averages.
Sale history: homes sold more than once
| Address | Sales | Change |
|---|---|---|
| 27, The Triangle | £105,000 (Jan 2019) → £175,000 (Jul 2025) | +67% over 7 yrs |
Buying on The Triangle?
Crime and flood risk near The Triangle
Crime
83 crimes were reported within about a mile of The Triangle in August 2026.
| Violence & sexual offences | 41 |
| Anti-social behaviour | 10 |
| Public order | 10 |
| Criminal damage & arson | 7 |
| Burglary | 4 |
| Other theft | 4 |
Source: data.police.uk. Locations are approximate and cover the surrounding area, not just this street.
Flood risk
The Triangle is not in or near any Environment Agency flood warning or alert area.
Flood warning areas cover places at risk from rivers and the sea. Surface water risk isn't included. Check the long-term flood risk for a postcode on GOV.UK.
Getting around, shops and health
Train stations
- Mountain Ash station 0.5 mi · 9 min walk
- Fernhill station 0.8 mi · 16 min walk
- Penrhiwceiber station 1.4 mi · 29 min walk
Nearest bus stops
- Lady Aberdare Flats (nr, Granville Terrace) 2 min walk
- The Lodge (after, Aberffrwd Road) 4 min walk
- Cae Garw Primary School (o/s, Troed-y-Rhiw Road) 4 min walk
- The Lodge (opp, Dyffryn Road) 4 min walk
GP surgeries
- Meddygfa Glan Cynon Surge
Ty Calon Lan, Oxford Street, Mountain Ash · 0.5 mi - Health Hub Iw
Ysbyty Cwm Cynon, New Road, Mountain Ash · 0.7 mi - Abercwmboi Medical Practice
Abercwmboi Medical Centre, 1-3 John Street, Aberdare · 1.5 mi - Brookside Medical Centre
Heol Afon Taf, Troedyrhiw, Merthyr Tydfil · 2.1 mi
Supermarkets
- Morrisons Daily Morrisons Daily Mountain Ash · 0.4 mi
- Iceland Iceland Mountain Ash · 0.4 mi
- The Co-operative Food Co-op Penrhwiceiber · 1.4 mi
- Aldi Aldi Aberaman Park Industrial Estate · 1.9 mi
Pharmacies
- Allied Pharmacy Mountain Ash · 0.4 mi
- Knights Mountain Ash Pharmacy · 0.5 mi
- Well · 1.4 mi
Dentists
- Dental Surgery · 0.4 mi
- Mountain Ash Dental Dept · 0.7 mi
- Gentle Dental Practice · 3.4 mi
Sources: Department for Transport (NaPTAN), NHS England organisation data, and GEOLYTIX Retail Points (open data). Walking times are estimates from straight-line distance.
Area profile
Homes
| Here | Eng & Wales | |
|---|---|---|
| Owned | 77.7% | 62.5% |
| Private rented | 18.5% | 20.3% |
| Social rented | 3.8% | 17.1% |
| Households | 681 |
People
| Here | Eng & Wales | |
|---|---|---|
| Under 15 | 16.0% | 17.4% |
| Aged 15–64 | 66.5% | 64.1% |
| Aged 65+ | 17.5% | 18.6% |
| Residents | 1,527 |
Broadband
| Here | UK | |
|---|---|---|
| Superfast (30Mbit+) | 100% | 95% |
| Ultrafast (300Mbit+) | 100% | 80% |
| Gigabit-capable | 100% | 80% |
Share of homes on this street's postcodes that can get each speed. UK figure is the average across all postcodes. Source: Ofcom Connected Nations.
Mobile signal
| Here | Eng & Wales | |
|---|---|---|
| 4G indoors, all 4 networks | 83% | 89% |
| 4G indoors, at least 1 network | 100% | 100% |
| 4G outdoors, all 4 networks | 96% | 99% |
| Calls indoors, all 4 networks | 94% | 92% |
Share of homes across Rhondda Cynon Taf with good coverage (Jul 2025). Signal varies street by street; check your exact address on Ofcom's checker. Source: Ofcom Connected Nations.
Neighbourhood figures cover the surrounding Lower Layer Super Output Area (about 1,500 residents). Sources: Census 2021 (ONS) and the English Indices of Deprivation 2025.
Energy ratings and home sizes on The Triangle
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Who lives around The Triangle
Ethnic group
| Here | Rhondda Cynon Taf | |
|---|---|---|
| White | 98.3% | 96.7% |
| Asian, Asian British or Asian Welsh | 1% | 1.5% |
| Mixed or Multiple ethnic groups | 0.5% | 1% |
| Black, Black British, Black Welsh, Caribbean or African | 0.2% | 0.4% |
| Other ethnic group | 0% | 0.3% |
Religion
| Here | Rhondda Cynon Taf | |
|---|---|---|
| No religion | 51.7% | 56.2% |
| Christian | 41.5% | 36.4% |
| Not answered | 5.6% | 5.8% |
| Other religion | 0.5% | 0.5% |
| Buddhist | 0.3% | 0.2% |
| Hindu | 0.3% | 0.2% |
| Muslim | 0.1% | 0.6% |
| Jewish | 0% | – |
Country of birth
| Here | Rhondda Cynon Taf | |
|---|---|---|
| Born in the UK | 97.1% | 96.3% |
| Born outside the UK | 2.9% | 3.7% |
Highest qualification
| Here | Rhondda Cynon Taf | |
|---|---|---|
| Level 4 qualifications and above | 29.4% | 26.7% |
| No qualifications | 19.1% | 24.2% |
| Level 2 qualifications | 18.6% | 15% |
| Level 3 qualifications | 16.5% | 16.8% |
| Level 1 and entry level qualifications | 8.9% | 9.4% |
| Apprenticeship | 4.6% | 5.1% |
| Other qualifications | 2.9% | 2.7% |
General health
| Here | Rhondda Cynon Taf | |
|---|---|---|
| Very good health | 50.8% | 44.5% |
| Good health | 30% | 31.7% |
| Fair health | 13.3% | 15.5% |
| Bad health | 5% | 6.3% |
| Very bad health | 0.8% | 1.9% |
Cars or vans per household
| Here | Rhondda Cynon Taf | |
|---|---|---|
| 1 car or van in household | 41.9% | 41.8% |
| 2 cars or vans in household | 32.2% | 26.6% |
| No cars or vans in household | 16.7% | 22.2% |
| 3 or more cars or vans in household | 9.3% | 9.3% |
Source: Census 2021 (ONS), via Nomis. Percentages of usual residents or households, as recorded in March 2021.
Figures cover the surrounding neighbourhood (Lower Layer Super Output Area, about 1,500 residents). Full demographics of Rhondda Cynon Taf.
Planning and heritage near The Triangle
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Noise, radon and ground hazards
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Planning applications near The Triangle
Recent planning applications around The Triangle from the council's planning register. Choose how far to look:
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Thinking of selling on The Triangle?
What's my home worth?
Get an instant estimate from what you paid and how prices in Rhondda Cynon Taf have moved since.
Council tax here
Rhondda Cynon Taf Band D is £2,289 a year (Band A £1,526). See every band.
Estate agents near The Triangle
- Durbin & Co Estate Agents 0.3 mi
- T Samuel Estate Agents 0.4 mi
- W J Holder & Co 3.2 mi
- Travel House 3.4 mi
- Bidmead Cook & Williams 3.4 mi
Agent locations © OpenStreetMap contributors. More local agents
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Nearby streets in CF45
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- Abercynon Road£110k
- Penrhiwceiber Road£95k
- Woodfield Terrace£120k
- High Street£162k
- Phillip Street£93k
- Woodland Street£84k
- Mountain Ash Road£156k
- Pentwyn Avenue£147k
- Forest View£243k
- Maes Y Ffynnon£100k
- Park Street£90k