6 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
About 6 Gwern Hafren
6 Gwern Hafren is an end-of-terrace house in Cardiff (CF11 9EY). It has a recorded floor area of 36 m² (around 388 sq ft) and council tax band D. The latest certificate (February 2009) returns a high B (score 85), putting the home a stone's throw from an A rating. The latest certificate is from February 2009, so improvements made since then won't be reflected. 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.
Held since August 2010 — that's 16 years off the open market, well above the local norm. At 36 m² it sits well below the postcode median (53 m² across 14 EPCs), making it one of the more compact homes locally. Across 2009–2010, sale prices on this property compounded at 12.6% per year. Today's modelled estimate of £176,000 is 28% above the 2010 sale price.
Energy performance
6 Gwern Hafren's carbon output is low for the local stock.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 10 Feb 2019
EPC Rating
Certificate validity
Expired on 10 February 2019
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Planning history
6 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
£176,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.6% per year over 2 years.
£137,500
Growth on file: 12.6% per year over 2 years.
Sales timeline
19 August 2010Most recent
£137,500
+19.6%over 1 year13 February 2009
£115,000
Median price across the last 5 sales in CF11 9EY: £195,100 (2026–2022).
Nearby sales in CF11 9EY
7 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
Sold Mar 2026
£175,00011 Gwern Hafren, Severn Grove, Cardiff, CF11 9EY
Sold Jan 2026
£162,0002 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
£405,000
Versus other Severn Grove homes
6 Gwern Hafren is notably below the street on floor area.
Price per m²
£3,819
Street avg £3,520
Floor Area
36 m²
Street avg 54 m²
CO₂ Emissions
0.9 t/year
Street avg 1.0 t/year
Years Held
16 years
Street avg 10 years
Similar properties nearby
The neighbourhood at a glance
Crime
362/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.







