12 Caerleon Close, St Mellons, Cardiff, CF3 0HH
About 12 Caerleon Close
12 Caerleon Close is a mid-terrace house in St. Mellons, Cardiff, Cardiff (CF3 0HH). It has a recorded floor area of 92 m² (around 990 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (March 2023) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (September 2008); 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 roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 85), a 2-band jump.
It lags the bulk of the postcode on energy efficiency (less efficient than 90% of similar EPCs).
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
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Planning history
12 Caerleon Close 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 Caerleon Close has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£206,000
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 CF3 0HH: £130,000 (2025–2015).
Nearby sales in CF3 0HH
24 Caerleon Close, St Mellons, Cardiff, CF3 0HH
Sold Aug 2025
£178,00039 Caerleon Close, St Mellons, Cardiff, CF3 0HH
Sold Dec 2021
£211,00035 Caerleon Close, St Mellons, Cardiff, CF3 0HH
Sold May 2016
£130,0002 Caerleon Close, St Mellons, Cardiff, CF3 0HH
Sold Oct 2015
£128,00015 Caerleon Close, St Mellons, Cardiff, CF3 0HH
Sold Sept 2015
£109,000
Versus other Caerleon Close homes
CO₂ Emissions for 12 Caerleon Close lags the street by a wide margin.
EPC Rating
68 (D)
Street avg 72 (C)
Floor Area
92 m²
Street avg 82 m²
CO₂ Emissions
3.3 t/year
Street avg 2.4 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Similar properties nearby
1 Bulrush Close, St Mellons
CF3 0AZ
1 Blaina Close, St Mellons
CF3 0EB
1 Caraway Close, St Mellons
CF3 0NF
1 Cathcob Close, St Mellons
CF3 0AH
1 Broadwell Close, St Mellons
CF3 0HU
1 Abernethy Close, St Mellons
CF3 0SB
1 Ashfield Court, St Mellons
CF3 0AE
1 Caradoc Close, St Mellons
CF3 0LQ
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
3/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Meddygfa Willowbrook Surgery — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







