21 Heol Newydd, Cardiff, CF3 1DW
About 21 Heol Newydd
21 Heol Newydd is a semi-detached house in Cardiff (CF3 1DW). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (July 2019) shows a D (score 66), on the cusp of jumping into the C band. Earlier certificates rated it C (April 2012); the latest reading is one band lower. Between certificates, hot-water efficiency went from Good to Very Good and lighting went from Good to Very Good. The recommended improvements would lift it to B (score 82), a 2-band jump.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Energy performance
21 Heol Newydd sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
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Planning history
21 Heol Newydd 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
21 Heol Newydd has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£235,000
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.
Versus other Heol Newydd homes
On epc rating, 21 Heol Newydd runs well behind the street norm.
EPC Rating
66 (D)
Street avg 72 (C)
Floor Area
74 m²
Street avg 83 m²
CO₂ Emissions
2.8 t/year
Street avg 2.5 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Similar properties nearby
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
0.2 km
Eastern High School — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







