12 Heddfan South, Cardiff, CF23 7EA
About 12 Heddfan South
12 Heddfan South is a four-bedroom end-of-terrace house in Cardiff (CF23 7EA). It has a recorded floor area of 105 m² (around 1130 sq ft), construction records dating it to 1967-1975 and council tax band B. Tenure is freehold. The latest certificate (December 2020) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (May 2014); the latest reading is one band lower. Between certificates, wall efficiency went from Average to Good; while window efficiency dropped from Good to Average and lighting dropped from Very Good to Very Poor. The recommended improvements would lift it to B (score 83), a 2-band jump.
Today's modelled estimate of £181,000 sits 95.7% above the 2015 sale of £92,500. At 105 m² it's 18% larger than the typical home in the postcode (89 m² median across 23 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 87% of similar EPCs). 11 years since the last transfer (April 2015).
What this property has
Inside
- Bedrooms4
Building
- TenureFreehold
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Wall insulation improved
Loft insulation upgraded to recommended levels
Low energy lighting percentage decreased
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Planning history
12 Heddfan South 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 Heddfan South valuation sits well clear of the typical sold price in this postcode.
£181,000
Modelled from EPC, postcode comparables.
£92,500
Recorded with HM Land Registry.
Sales timeline
16 April 2015Most recent
£92,500
Median price across the last 5 sales in CF23 7EA: £103,000 (2025–2014).
Nearby sales in CF23 7EA
Versus other Heddfan South homes
On floor area, 12 Heddfan South stands well clear of the street.
Price per m²
£881
Street avg £1,193
Floor Area
105 m²
Street avg 91 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
3.6 t/year
Street avg 2.5 t/year
Similar properties nearby
1 Hawfinch Close
CF23 7HL
1 Glyn Rhosyn
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1 Marle Close, Pentwyn
CF23 7EP
1 Pant Glas
CF23 7EU
1 Azalea Close
CF23 7HR
1 St Georges Court, Linnet Close
CF23 7HG
1 Coeden Dal
CF23 7DH
1 Bryn Haidd
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Heddfaen South — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







