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Get started6 Castell Y Mwnws is a two-bedroom mid-terrace house in Llanharry, Pontyclun, Pontyclun (CF72 9DD). It has a recorded floor area of 61 m² (around 657 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (April 2021) shows a D (score 68), on the cusp of jumping into the C band. When first surveyed in November 2008 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good, window efficiency went from Average to Good and hot-water efficiency went from Poor to Good; while wall efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to B (score 88), a 2-band jump.
Sale prices here have outpaced England HPI: 6.6% per year against 0% for the wider region. Today's modelled estimate of £184,000 is 22.7% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£228/sq ft) was about 56.5% above the typical sold price in the postcode. At 61 m² it sits well below the postcode median (149 m² across 8 EPCs), making it one of the more compact homes locally. 2 bedrooms is on the smaller side for this postcode, where 4 is the typical count. Most recent transfer: June 2021 at £150,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£184,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.6% per year over 10 years.
£150,000
Growth on file: 6.6% per year over 10 years.
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Detailed AI analysis
CO₂ Emissions for 6 Castell Y Mwnws runs comfortably ahead of the street norm.
Price per m²
£2,459
Street avg £1,931
Floor Area
61 m²
Street avg 162 m²
Habitable Rooms
3 rooms
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Elms Farm — bus stop.
Changes detected from historical EPC data
Heating controls changed
Hot water system upgraded
Window efficiency improved
Roof insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
2 June 2021Most recent
£150,000
+89.9%over 10 years16 May 2011
£79,000
Median price across the last 5 sales in CF72 9DD: £450,000 (2025–2017).
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Street avg 6 rooms
CO₂ Emissions
2.4 t/year
Street avg 4.3 t/year
CF72 9ZG