Property data
Sale history
Date Paid price Annual growth After inflation
Aug 2021 £480,000 4.3% 2.4%
Jan 2015 £363,000 1.4% -1.0%
Jul 2004 £315,000 14.2% 12.7%
Apr 2000 New build New £180,000 na na
Internal area
122 square metres (1,313 square feet) according to latest EPC inspection
Price per internal area

This property sold for £3,934 per square metre (£365 per square foot) in Aug 2021. Indexed forward to today's value, this is roughly £4,496 per square metre (£418 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Aug 2021 £480,000 £3,934 £548,491 £4,496
Jan 2015 £363,000 £2,975 £577,334 £4,732
Jul 2004 £315,000 £2,582 £616,965 £5,057
Apr 2000 £180,000 £1,475 £591,968 £4,852

Calculated using the latest EPC internal area of 122 m². Earlier sale dates may not have had the same measured area available.

Valuation
The most recent sale price indexed forward to today's value is £548,491. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Cardiff are now selling for between £3,230 and £4,220 per square metre (£300 and £392 per square foot). Based on an internal area of 122 m², this implies a valuation between £394,000 and £515,000. Treat this as context only. For a valuation using hand-picked comparable sales, use the Advanced search tool — create a shortlist of similar condition homes, then export a valuation report.
Bedrooms
4
Type
Detached
Council tax band
G
Plot size
331 square metres (3,563 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived sales listing for 21 Clos Derwen. Advertised on multiple portals. It was added on 22/05/2021. It last appeared Jan 2022.
Photos:

There are 23 archived estate agent listing photos for 21 Clos Derwen.

Photos for 21 Clos Derwen
View photos
Advertiser remarks:
  • 4 bedrooms
  • 2 bathrooms
EPC Inspections
Summary:
16 April 2021 - energy performance certificate grade C
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Owner-occupied
Property type:
Detached House , has 7 habitable rooms. Estimated year built 2007 to 2011
Area:
122 sqm (1,313 square foot) total internal area
Comments:
Walls: Cavity wall, as built, insulated (assumed). Roof: Pitched, 250 mm loft insulation. Heating: Boiler and radiators, mains gas.

Summary:
03 May 2011 - energy performance certificate grade C
Reason for EPC:
None
Tenure:
Owner-occupied
Property type:
None , has 6 habitable rooms. Estimated year built 2003 to 2006
Area:
131 sqm (1,410 square foot) total internal area
Comments:
Frequently asked questions

21 Clos Derwen is worth whatever price a willing buyer and seller agree upon. However, the following can provide useful context.

  • HouseMetric estimates the most recent sale price indexed forward to today's value is £548,491.
  • Based on an internal area of 122 m² and recent prices in Cardiff, this implies a lower and upper quartile range from £394,000 to £515,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 21 Clos Derwen last sold for £480,000 in August 2021.

HouseMetric shows 21 Clos Derwen as 122 m² (1,313 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 4 bedrooms. Bedroom numbers can come from a previous estate agency listing, an EPC record, or an estimate based on the size of the property.

The latest EPC rating shown by HouseMetric is C, from an inspection dated 16 April 2021. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 21 Clos Derwen was in council tax band G. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

21 Clos Derwen is in postcode CF23 5HJ, in Cardiff. You can also view HouseMetric's sold-price page for Clos Derwen, CF23 5HJ or analysis of the Cardiff property market.

HouseMetric combines HM Land Registry price paid data, Energy Performance Certificate data and Ordnance Survey/open data. The data were last updated 1 June 2026. Figures such as indexed values and local valuation ranges are calculated estimates for context, while official records can change as public datasets are updated.

For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.