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Get started15 Harold Street is a semi-detached house in Llanharan, Pontyclun, Pontyclun (CF72 9RJ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1976-1982 and council tax band B. The latest certificate (September 2025) returns an A (score 92), the top energy band on the EPC scale. When first surveyed in September 2023 the rating was D, the property has climbed 3 bands since. Between certificates, wall efficiency went from Average to Good and roof efficiency went from Good to Very Good; while window efficiency dropped from Good to Average and lighting dropped from Very Good to Average.
15 Harold Street's carbon output is low for the local stock.
15 Harold Street has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£174,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
Floor Area for 15 Harold Street lags the street by a wide margin.
EPC Rating
92 (A)
Street avg 78 (C)
Floor Area
56 m²
Street avg 71 m²
CO₂ Emissions
1.3 t/year
Street avg 2.5 t/year
Rail-style transport is unusually close for this postcode.
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Rose Terrace — bus stop.
Changes detected from historical EPC data
Wall insulation upgraded
Loft insulation upgraded to recommended levels
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in CF72 9RJ: £112,500 (2022–2015).
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Habitable Rooms
4 rooms
Street avg 4 rooms