5 Gwern Catherine, Capel Llanilltern, Cardiff, CF5 6GD
About 5 Gwern Catherine
5 Gwern Catherine is an end-of-terrace house in Capel Llanilltern, Cardiff, Cardiff (CF5 6GD). It has a recorded floor area of 51 m² (around 549 sq ft). The latest certificate (October 2020) returns a B (score 82), comfortably above the UK average. The recommended improvements would push it to A (score 97).
Across 2020–2023, sale prices on this property compounded at 5.6% per year. Today's modelled estimate of £234,000 is 14.1% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£373/sq ft) was about 15.8% above the typical sold price in the postcode. Most recent transfer: January 2023 at £205,000.
Energy performance
5 Gwern Catherine's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 21 October 2030
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Planning history
5 Gwern Catherine 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 Gwern Catherine changed hands twice within eighteen months — unusual for the area.
£234,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.6% per year over 2 years.
£205,000
Growth on file: 5.6% per year over 2 years.
Sales timeline
31 January 2023Most recent
£205,000
8 December 2022
£205,000
+12.6%over 2 years27 November 2020
£181,995
Median price across the last 5 sales in CF5 6GD: £240,000 (2026–2025).
Nearby sales in CF5 6GD
48 Gwern Catherine, Capel Llanilltern, Cardiff, CF5 6GD
Sold Apr 2026
£240,0009 Gwern Catherine, Capel Llanilltern, Cardiff, CF5 6GD
Sold Apr 2026
£215,00042 Gwern Catherine, Capel Llanilltern, Cardiff, CF5 6GD
Sold Apr 2026
£350,00038 Gwern Catherine, Capel Llanilltern, Cardiff, CF5 6GD
Sold Jan 2026
£217,00030 Gwern Catherine, Capel Llanilltern, Cardiff, CF5 6GD
Sold Dec 2025
£310,000
Versus other Gwern Catherine homes
5 Gwern Catherine is notably below the street on epc rating.
Price per m²
£4,020
Street avg £3,493
Floor Area
51 m²
Street avg 71 m²
CO₂ Emissions
0.9 t/year
Street avg 1.1 t/year
Years Held
4 years
Street avg 4 years
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The neighbourhood at a glance
Crime
426/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Robin Hill — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







