1b, Heol Isaf, CF15 8AF
1b Heol Isaf is a 124 m² / 1,335 sq ft detached home in Radyr. It sold for £469,000 in May 2021. Indexed forward to today's value, that sale is roughly £556k. Recent local prices imply a broad valuation context of £397k to £529k 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 May 2021 £469,000 7.1% 5.1% Dec 2016 £345,000 na na - Floor plan
-
Archived estate agent floor plan for 1b, Heol Isaf.
- Internal area
- 124 square metres (1,335 square feet) according to latest EPC inspection
- Price per internal area
-
This property sold for £3,782 per square metre (£351 per square foot) in May 2021. Indexed forward to today's value, this is roughly £4,487 per square metre (£417 per square foot) .
Date Paid price Paid £/sqm Today's value Today's value £/sqm May 2021 £469,000 £3,782 £556,332 £4,487 Dec 2016 £345,000 £2,782 £503,645 £4,062 Calculated using the latest EPC internal area of 124 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 £556,332. 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 £3,200 and £4,270 per square metre (£297 and £396 per square foot). Based on an internal area of 124 m², this implies a valuation between £397,000 and £529,000. 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
- Detached
- Council tax band
- na
- Plot size
- 580 square metres (6,243 square feet) - map showing freehold boundary lines
- Planning ref:
- January 2022 21/02703/DCH
- Type:
- Full and householder planning application
- Status:
- Application approved
- Address:
- Castle View 1B Heol Isaf Radyr Cardiff
- Description:
- GROUND FLOOR EXTENSIONS TO FRONT AND REAR ELEVATIONS AND TO INCLUDE FIRST FLOOR TERRACE TO REAR ASPECT WITH ASSOCIATED ALTERATIONS
- Planning ref:
- October 2021 21/02320/DCH
- Type:
- Full and householder planning application
- Status:
- Application withdrawn before a decision was taken
- Address:
- Castle View 1B Heol Isaf Radyr Cardiff
- Description:
- NEW BOUNDARY WALL TO THE FRONT OF THE PROPERTY, DEMOLITION OF EXISTING PORCH TO THE FRONT AND CONSERVATORY TO THE REAR, GROUND FLOOR EXTENSIONS TO THE FRONT AND REAR, ROOF TERRACE TO THE REAR AT FIRST FLOOR LEVEL
- Summary:
- 19 January 2016 - energy performance certificate grade E
- 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 1950 to 1966
- Area:
- 124 sqm (1,335 square foot) total internal area
- Comments:
- Walls: Cavity wall, as built, no insulation (assumed). Roof: Pitched, 250 mm loft insulation. Heating: Boiler and radiators, mains gas.
1b Heol Isaf 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 £556,332.
- Based on an internal area of 124 m² and recent prices in Radyr, this implies a lower and upper quartile range from £397,000 to £529,000, using HouseMetric's implied valuation methodology.
For more detail on HouseMetric data sources, update frequency and valuation methods, see the HouseMetric FAQs.