8 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
About 8 Gwern Hafren
8 Gwern Hafren is a one-bedroom end-of-terrace house in Cardiff (CF11 9EY). It has a recorded floor area of 36 m² (around 388 sq ft), construction records dating it to 2007 onwards and council tax band D. The latest certificate (March 2019) returns a B (score 81), comfortably above the UK average. The rating has held steady at B across 2 certificates since February 2009. Between certificates, lighting went from Good to Very Good; while wall efficiency dropped from Very Good to Good and window efficiency dropped from Very Good to Good. At 36 m² this is the 2nd smallest of 15 units on EPC record in the building, where floor areas span 34–93 m². The building's EPC ratings span C to B, with this unit at the top.
Untraded for 17 years, with the last transfer in March 2009. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £166,000 sits 50.9% above the 2009 sale of £110,000. At 36 m² it sits well below the postcode median (53 m² across 14 EPCs), making it one of the more compact homes locally.
What this property has
Inside
- Bedrooms1
- Bathrooms1
- Utility roomYes
Building
- LiftYes
Energy performance
8 Gwern Hafren's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
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Planning history
8 Gwern Hafren has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£166,000
Modelled from EPC, postcode comparables.
£110,000
Recorded with HM Land Registry.
Sales timeline
19 March 2009Most recent
£110,000
Median price across the last 5 sales in CF11 9EY: £255,000 (2024–2020).
Nearby sales in CF11 9EY
2 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
Sold Apr 2024
£195,10014 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
Sold Feb 2024
£416,00015 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
Sold Mar 2022
£405,0004 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
Sold Feb 2022
£154,00012 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
Sold Nov 2020
£255,000
Versus other Severn Grove homes
8 Gwern Hafren outperforms the street on co₂ emissions by a wide margin.
Price per m²
£3,056
Street avg £3,428
Floor Area
36 m²
Street avg 54 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
CO₂ Emissions
0.7 t/year
Street avg 1.1 t/year
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The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Halfway Hotel — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







