12 Tai Penylan, Capel Llanilltern, Cardiff, CF5 6JQ
About 12 Tai Penylan
12 Tai Penylan is a semi-detached house in Capel Llanilltern, Cardiff, Cardiff (CF5 6JQ). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (May 2018) shows an E (score 44), well below the UK norm with real room to improve. Earlier certificates rated it D (November 2010); the latest reading is one band lower. Between certificates, lighting went from Very Poor to Very Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would push it to D (score 64). Main heating runs on electricity. At 73 m² this is the 2nd smallest of 9 units on EPC record in the building, where floor areas span 69–120 m². The building's EPC ratings span F to C across 9 units on file.
At 73 m² it's 26.6% smaller than the typical home in the postcode (100 m² median across 8 EPCs).
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Solar water heating installed
Heating controls changed
Heating controls upgraded for better temperature management
Hot water system changed
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
12 Tai Penylan has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
12 Tai Penylan 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.
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 CF5 6JQ: £265,000 (2023–2018).
Nearby sales in CF5 6JQ
2 Tai Penylan, Capel Llanilltern, Cardiff, CF5 6JQ
Sold Sept 2023
£290,0006 Tai Penylan, Capel Llanilltern, Cardiff, CF5 6JQ
Sold Dec 2020
£265,00011 Tai Penylan, Capel Llanilltern, Cardiff, CF5 6JQ
Sold Feb 2020
£90,0008 Tai Penylan, Capel Llanilltern, Cardiff, CF5 6JQ
Sold Oct 2018
£295,0003 Tai Penylan, Capel Llanilltern, Cardiff, CF5 6JQ
Sold Sept 2018
£231,500
Versus other Tai Penylan homes
12 Tai Penylan is notably below the street on epc rating.
EPC Rating
44 (E)
Street avg 72 (C)
Floor Area
73 m²
Street avg 72 m²
CO₂ Emissions
3.9 t/year
Street avg 3.0 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Graig-y-Parc — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







