21, Pentwyn, CF15 8RE

21 Pentwyn is a 83 m² / 893 sq ft semi-detached home in Radyr. It sold for £222,950 in October 2019. Indexed forward to today's value, that sale is roughly £299k. Recent local prices imply a broad valuation context of £261k to £355k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.

Property data
Sale history
Date Paid price Annual growth After inflation
Oct 2019 £222,950 3.0% 1.0%
Nov 2010 £172,000 na na
Internal area
83 square metres (893 square feet) according to latest EPC inspection
Price per internal area

This property sold for £2,686 per square metre (£250 per square foot) in Oct 2019. Indexed forward to today's value, this is roughly £3,602 per square metre (£335 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Oct 2019 £222,950 £2,686 £298,967 £3,602
Nov 2010 £172,000 £2,072 £329,657 £3,972

Calculated using the latest EPC internal area of 83 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 £298,967. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Radyr are now selling for between £3,150 and £4,280 per square metre (£292 and £397 per square foot). Based on an internal area of 83 m², this implies a valuation between £261,000 and £355,000. 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
2
Type
Semi-detached
Council tax band
D
Plot size
232 square metres (2,497 square feet) - map showing freehold boundary lines
Archived listings
History:
Archived sales listing for 21 Pentwyn. Advertised on multiple portals. It was added on 14/06/2019. It last appeared Oct 2019.
Photos:

There are 13 archived estate agent listing photos for 21 Pentwyn.

Photos for 21 Pentwyn
View photos
Advertiser remarks:
  • 2 bedrooms
  • 1 bathrooms
Planning applications
Planning ref:
September 2021 21/01975/DCH
Type:
Full and householder planning application
Status:
Application approved
Address:
21 Pentwyn Radyr Cardiff
Description:
TWO STOREY SIDE EXTENSION
Planning ref:
September 2002 02/01430/W
Type:
Full and householder planning application
Status:
Application approved
Address:
21 Pentwyn, Radyr, Cardiff
Description:
SINGLE STOREY REAR EXTENSION ATTACHED TO EXISTING GARAGE, INCLUDING REMOVAL OF EXISTING GARAGE FLAT ROOF AND PROVISION OF NEW TILED PITCHED LEAN-TO
EPC Inspections
Summary:
24 April 2010 - energy performance certificate grade D
Reason for EPC:
None
Tenure:
Owner-occupied
Property type:
None , has 4 habitable rooms. Estimated year built 1967 to 1975
Area:
83 sqm (893 square foot) total internal area
Comments:
Frequently asked questions

21 Pentwyn 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 £298,967.
  • Based on an internal area of 83 m² and recent prices in Radyr, this implies a lower and upper quartile range from £261,000 to £355,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 21 Pentwyn last sold for £222,950 in October 2019.

HouseMetric shows 21 Pentwyn as 83 m² (893 sq ft), based on the latest internal area data available for this property. The bedroom count is shown as 2 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 D, from an inspection dated 24 April 2010. EPC information comes from the public Energy Performance Certificate data for England and Wales.

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

21 Pentwyn is in postcode CF15 8RE, in Radyr. You can also view HouseMetric's sold-price page for Pentwyn, CF15 8RE or analysis of the Radyr 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.