5 Castle Green, St George S Super Ely, Cardiff, CF5 6EX
About 5 Castle Green
5 Castle Green is a semi-detached house in Cardiff (CF5 6EX). It has a recorded floor area of 132 m² (around 1421 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (March 2025) returns a B (score 81), comfortably above the UK average. When first surveyed in December 2014 the rating was D, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good and lighting went from Average to Very Good; while roof efficiency dropped from Very Good to Good and main heating dropped from Good to Average. Main heating runs on electricity.
At 132 m² the property is well over the postcode median (100 m² across 5 EPCs), placing it in the larger end of the local stock.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls changed
Wall insulation improved
More low energy lighting installed
Solar PV panels (50 kWp) installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
5 Castle Green 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
5 Castle Green has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£403,000
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 6EX: £245,000 (2024–2004).
Nearby sales in CF5 6EX
6 Castle Green, St George S Super Ely, Cardiff, CF5 6EX
Sold Nov 2024
£230,000Ty Gwyn, Castle Green, St George S Super Ely, Cardiff, CF5 6EX
Sold Mar 2022
£520,0003 Castle Green, St George S Super Ely, Cardiff, CF5 6EX
Sold Nov 2020
£295,0008 Castle Green, St George S Super Ely, Cardiff, CF5 6EX
Sold Oct 2004
£205,000
Versus other Castle Green homes
5 Castle Green outperforms the street on floor area by a wide margin.
EPC Rating
81 (B)
Street avg 66 (D)
Floor Area
132 m²
Street avg 102 m²
CO₂ Emissions
2.1 t/year
Street avg 3.3 t/year
Habitable Rooms
1 rooms
Street avg 5 rooms
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1 Castle Green, St George S Super Ely
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
St George`s — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







