46 Heol Y Castell, Ely, Cardiff, CF5 5LS
About 46 Heol Y Castell
46 Heol Y Castell is a semi-detached house in Ely, Cardiff, Cardiff (CF5 5LS). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to 1950-1966 and council tax band C. The latest certificate (October 2020) shows a D (score 67), on the cusp of jumping into the C band. Earlier certificates rated it C (August 2020); the latest reading is one band lower. Between certificates, roof efficiency went from Average to Good and window efficiency went from Average to Good; while wall efficiency dropped from Average to Poor. The recommended improvements would lift it to B (score 84), a 2-band jump.
It lags the bulk of the postcode on energy efficiency (less efficient than 76% 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
Heating controls upgraded for better temperature management
Window efficiency improved
Roof insulation improved
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Planning history
46 Heol Y Castell 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
46 Heol Y Castell has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£176,000
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 5LS: £182,000 (2025–2022).
Nearby sales in CF5 5LS
2 Heol Y Castell, Ely, Cardiff, CF5 5LS
Sold Jul 2025
£180,00014 Heol Y Castell, Ely, Cardiff, CF5 5LS
Sold Nov 2024
£170,00022 Heol Y Castell, Ely, Cardiff, CF5 5LS
Sold Oct 2023
£182,00024 Heol Y Castell, Ely, Cardiff, CF5 5LS
Sold Sept 2023
£195,00042 Heol Y Castell, Ely, Cardiff, CF5 5LS
Sold May 2022
£185,000
Versus other Heol Y Castell homes
46 Heol Y Castell is notably below the street on epc rating.
EPC Rating
67 (D)
Street avg 69 (D)
Floor Area
86 m²
Street avg 89 m²
CO₂ Emissions
3.3 t/year
Street avg 3.1 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Similar properties nearby
The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Heol-y-Gaer — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







