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Get started10 Carreg Arwyn is a six-bedroom detached house in Llanharry, Pontyclun, Pontyclun (CF72 9LG). It has a recorded floor area of 207 m² (around 2228 sq ft) and construction records dating it to 1967-1975. The latest certificate (February 2026) shows a C (score 72). When first surveyed in May 2015 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good and lighting went from Very Poor to Very Good. This certificate was lodged in the last six months, so the rating reflects current condition.
Sale prices here have outpaced England HPI: 6.5% per year against 0% for the wider region. Today's modelled estimate of £390,000 sits 55.4% above the 2016 sale of £251,000. At 207 m² the property is well over the postcode median (79 m² across 5 EPCs), placing it in the larger end of the local stock. 6 bedrooms is on the larger side for this postcode, where 4 is the typical count. Last changed hands 10 years ago, in April 2016.
The EPC has just been inspected, so the rating reflects current condition.
Sale price has at least doubled since 1999.
£390,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.5% per year over 17 years.
£251,000
Growth on file: 6.5% per year over 17 years.
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On epc rating, 10 Carreg Arwyn stands well clear of the street.
EPC Rating
72 (C)
Street avg 65 (D)
Floor Area
207 m²
Street avg 86 m²
CO₂ Emissions
5.0 t/year
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Ysgol Llanharry — bus stop.
Changes detected from historical EPC data
Cavity wall insulation installed
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
25 April 2016Most recent
£251,000
+182.0%over 15 years21 July 2000
£89,000
+2.3%over 1 year16 July 1999
£87,000
Median price across the last 5 sales in CF72 9LG: £164,950 (2018–1999).
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Street avg 4.0 t/year
Habitable Rooms
8 rooms
Street avg 4 rooms
CF72 9WU