12 Pen Y Cwm, Pentyrch, Cardiff, CF15 9PS
About 12 Pen Y Cwm
12 Pen Y Cwm is a semi-detached house in Pentyrch, Cardiff, Cardiff (CF15 9PS). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1930-1949 and council tax band C. At 64 m² this is the 5th smallest of 8 units on EPC record in the building, where floor areas span 59–151 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (October 2018) shows a C (score 76), near the top of the C band. When first surveyed in January 2013 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good and hot-water efficiency went from Average to Good; while wall efficiency dropped from Good to Average and lighting dropped from Very Good to Good.
Everything you need to know about 12 Pen Y Cwm
The true value, the hidden risks and the full sale history, in one report.
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The data behind every report
Energy performance
EPC Rating
Certificate validity
Valid until 4 October 2028
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Roof insulation improved
Low energy lighting percentage decreased
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Planning history
12 Pen Y Cwm has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
12 Pen Y Cwm has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£177,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
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.
Median price across the last 5 sales in CF15 9PS: £190,000 (2025–2022).
Nearby sales in CF15 9PS
7 Pen Y Cwm, Pentyrch, Cardiff, CF15 9PS
Sold Oct 2025
£410,0002 Pen Y Cwm, Pentyrch, Cardiff, CF15 9PS
Sold Feb 2025
£190,0005 Pen Y Cwm, Pentyrch, Cardiff, CF15 9PS
Sold Apr 2022
£370,0003 Pen Y Cwm, Pentyrch, Cardiff, CF15 9PS
Sold Nov 2016
£124,9504 Pen Y Cwm, Pentyrch, Cardiff, CF15 9PS
Sold Feb 2006
£123,000
Versus other Pen Y Cwm homes
12 Pen Y Cwm outperforms the street on co₂ emissions by a wide margin.
EPC Rating
76 (C)
Street avg 71 (C)
Floor Area
64 m²
Street avg 62 m²
CO₂ Emissions
1.7 t/year
Street avg 2.4 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Everything you need to know about 12 Pen Y Cwm
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Pentyrch Shops — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.