3 Castle Green, St George S Super Ely, Cardiff, CF5 6EX
About 3 Castle Green
3 Castle Green is a three-bedroom semi-detached house in Cardiff (CF5 6EX). It has a recorded floor area of 123 m² (around 1324 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (December 2024) shows an E (score 43), well below the UK norm with real room to improve. Earlier certificates rated it D (July 2014); the latest reading is one band lower. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Average to Poor. The recommended improvements would push it to D (score 62). Main heating runs on lpg.
At 123 m² it's 23% larger than the typical home in the postcode (100 m² median across 5 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). Across 1996–2020, sale prices on this property compounded at 7.7% per year. Today's modelled estimate of £380,000 is 28.8% above the 2020 sale price. Sold November 2020 for £295,000.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
Building
- Heating systemGas
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Hot water efficiency decreased
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
3 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
3 Castle Green has more than quadrupled in price since its earliest registered sale in 1996.
£380,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.7% per year over 24 years.
£295,000
Growth on file: 7.7% per year over 24 years.
Sales timeline
18 November 2020Most recent
£295,000
+20.4%over 13 years19 July 2007
£245,000
+400.0%over 10 years10 October 1996
£49,000
Median price across the last 4 sales in CF5 6EX: £217,500 (2024–1999).
Versus other Castle Green homes
EPC Rating for 3 Castle Green lags the street by a wide margin.
EPC Rating
43 (E)
Street avg 73 (C)
Floor Area
123 m²
Street avg 104 m²
CO₂ Emissions
4.3 t/year
Street avg 2.8 t/year
Habitable Rooms
5 rooms
Street avg 4 rooms
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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.







