21, Castle Road, CF15 7JQ
21 Castle Road is a 148 m² / 1,593 sq ft semi-detached home in Taffs Well. It sold for £388,950 in November 2019. Indexed forward to today's value, that sale is roughly £505k. Recent local prices imply a broad valuation context of £370k to £514k based on its internal area. The Land Registry and EPC data was last updated 2 July 2026.
- Sale history
-
Date Paid price Annual growth After inflation Nov 2019 £388,950 4.6% 3.0% Aug 2014 £306,000 na na - Internal area
- 148 square metres (1,593 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £2,628 per square metre (£244 per square foot) in Nov 2019. Indexed forward to today's value, this is roughly £3,415 per square metre (£317 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm Nov 2019 £388,950 £2,628 £505,435 £3,415 Aug 2014 £306,000 £2,068 £470,760 £3,181 Calculated using the latest EPC internal area of 148 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 £505,435. This is one data point to inform the valuation. Another method is the valuation implied by what comparable homes are selling for. Homes in Taffs Well are now selling for between £2,500 and £3,470 per square metre (£232 and £322 per square foot). Based on an internal area of 148 m², this implies a valuation between £370,000 and £514,000. 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
- na
- Type
- Semi-detached
- Council tax band
- na
- Plot size
- 174 square metres (1,873 square feet) - map showing freehold boundary lines
- Planning ref:
- October 2020 20/01440/DCH
- Type:
- Outline application - proposal prior to a full application, including assessments and scoping opinions.
- Status:
- Application approved
- Address:
- 21 Castle Road Tongwynlais Cardiff
- Description:
- REAR SINGLE STOREY EXTENSION TO UPPER GROUND FLOOR
- Summary:
- 18 February 2026 - energy performance certificate grade C
- Certificate:
- View energy certificate on GOV.UK
- Reason for EPC:
- Non-marketed sale
- Tenure:
- Owner-occupied
- Property type:
- Semi-Detached House , has 6 habitable rooms. Estimated year built 2012 to 2021
- Area:
- 148 sqm (1,593 square foot) total internal area
- Comments:
- Walls: Cavity wall, as built, insulated (assumed). Roof: Flat, insulated. Heating: Boiler and radiators, mains gas.
21 Castle Road 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 £505,435.
- Based on an internal area of 148 m² and recent prices in Taffs Well, this implies a lower and upper quartile range from £370,000 to £514,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.