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 £187,000 is 36% above the 2010 sale price. On a £-per-square-foot basis, the last sale (£355/sq ft) was about 17.2% above the typical sold price in the postcode.
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This certificate is over 10 years old and is no longer valid.Expired 10 Feb 2019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
Get a survey for this property
Level 2 HomeBuyer Report
We've checked 10 risk factors against the available data for this property and believe a Level 2 HomeBuyer Report could be a suitable option for you.
From £495 · Includes VAT
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
£187,000
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: £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
6 Gwern Hafren is notably below the street on floor area.
Price per m²
£3,819
Street avg £3,358
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 11 years
Similar properties nearby
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.







