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Get started5 Castell Y Mwnws is a one-bedroom end-of-terrace house in Llanharry, Pontyclun, Pontyclun (CF72 9DD). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (February 2020) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in November 2008 the rating was G, the property has climbed 3 bands since. Between certificates, roof efficiency went from Very Poor to Good, hot-water efficiency went from Very Poor to Good and lighting went from Average to Very Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
Sale prices here have outpaced England HPI: 6.7% per year against 0% for the wider region. Today's modelled estimate of £175,000 is 45.8% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£136/sq ft) was about 25.4% below the postcode norm. At 82 m² it sits well below the postcode median (149 m² across 8 EPCs), making it one of the more compact homes locally. Last changed hands 9 years ago, in August 2017.
Recommended upgrades on file would lift this property by multiple EPC bands.
5 Castell Y Mwnws saw 3 transfers in just over a decade — high turnover for the postcode.
£175,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.7% per year over 6 years.
£120,000
Growth on file: 6.7% per year over 6 years.
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Detailed AI analysis
Price per m² for 5 Castell Y Mwnws lags the street by a wide margin.
Price per m²
£1,463
Street avg £2,097
Floor Area
82 m²
Street avg 160 m²
Habitable Rooms
5 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
Hot water system upgraded
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Heating controls changed
Wall insulation improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
31 August 2017Most recent
£120,000
+3.0%over 2 years23 September 2014
£116,500
+45.6%over 3 years3 June 2011
£80,000
Median price across the last 5 sales in CF72 9DD: £450,000 (2025–2019).
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Detailed EPC data
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Full planning history
Every application and decision on record
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Street avg 6 rooms
CO₂ Emissions
3.6 t/year
Street avg 4.1 t/year
CF72 9ZG