20, Castle Square, CF47 8NU

20 Castle Square is a 57 m² / 614 sq ft terraced home in Merthyr Tydfil. It sold for £26,850 in November 2002. Indexed forward to today's value, that sale is roughly £84k. Recent local prices imply a broad valuation context of £72k to £126k based on its internal area. The Land Registry and EPC data was last updated 1 June 2026.

Property data
Sale history
£26,850 on Nov 2002
Internal area
57 square metres (614 square feet) according to latest EPC inspection
Price per internal area

This property sold for £471 per square metre (£44 per square foot) in Nov 2002. Indexed forward to today's value, this is roughly £1,474 per square metre (£137 per square foot) .

Date Paid price Paid £/sqm Today's value Today's value £/sqm
Nov 2002 £26,850 £471 £83,996 £1,474

Calculated using the latest EPC internal area of 57 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 £83,996. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Merthyr Tydfil are now selling for between £1,260 and £2,210 per square metre (£117 and £205 per square foot). Based on an internal area of 57 m², this implies a valuation between £72,000 and £126,000. 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
Terrace
Council tax band
A
Plot size
39 square metres (420 square feet) - map showing freehold boundary lines
EPC Inspections
Summary:
09 February 2026 - energy performance certificate grade D
Certificate:
View energy certificate on GOV.UK
Reason for EPC:
marketed sale
Tenure:
Owner-occupied
Property type:
Mid-Terrace House , has 3 habitable rooms. Estimated year built before 1900
Area:
57 sqm (614 square foot) total internal area
Comments:
Walls: Granite or whin, as built, no insulation (assumed). Roof: Pitched, 50 mm loft insulation. Heating: Boiler and radiators, mains gas.
Frequently asked questions

20 Castle Square 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 £83,996.
  • Based on an internal area of 57 m² and recent prices in Merthyr Tydfil, this implies a lower and upper quartile range from £72,000 to £126,000, using HouseMetric's implied valuation methodology.

According to HM Land Registry price paid data, 20 Castle Square last sold for £26,850 in November 2002.

HouseMetric shows 20 Castle Square as 57 m² (614 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 09 February 2026. EPC information comes from the public Energy Performance Certificate data for England and Wales.

When we last checked, 20 Castle Square was in council tax band A. Council Tax bands can change, so check the latest Valuation Office Agency Council Tax list.

20 Castle Square is in postcode CF47 8NU, in Merthyr Tydfil. You can also view HouseMetric's sold-price page for Castle Square, CF47 8NU or analysis of the Merthyr Tydfil 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.