61 Heol Isaf, Radyr, Cardiff, CF15 8DW
About 61 Heol Isaf
61 Heol Isaf is a four-bedroom semi-detached house in Radyr, Cardiff, Cardiff (CF15 8DW). It has a recorded floor area of 191 m² (around 2055 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (May 2011) shows a D (score 57), a step below the typical UK home. The recommended improvements would push it to C (score 69). The latest certificate is from May 2011, so improvements made since then won't be reflected.
One planning record on file: a loft conversion approved in 2018. Past consents include a loft conversion, meaningful when judging how the property has evolved. At 191 m² it's 29% larger than the typical home in the postcode (148 m² median across 17 EPCs). Across 2011–2020, sale prices on this property compounded at 6.6% per year. On a £-per-square-foot basis, the last sale (£373/sq ft) was about 76.1% above the typical sold price in the postcode. Most recent transfer: March 2020 at £766,000.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Open-plan layoutYes
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenRear
- GarageYes
Energy performance
61 Heol Isaf's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 25 May 2021
EPC Rating
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Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £1,360 · Includes VAT
Planning history
1 application on record at 61 Heol Isaf, Radyr, Cardiff, CF15 8DW
- May 2018Loft ConversionFullOutcome in report
LOFT CONVERSION TO INCLUDE HIP-TO-GABLE AND REAR DORMER
- Documents
- 7 docs on file
- Reference
- 18/00881/DCH
Unlock 61 Heol Isaf, Radyr, Cardiff, CF15 8DW's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 3 notable nearby
- The 7 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 61 Heol Isaf was the highest on Land Registry record across the postcode.
£835,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.6% per year over 9 years.
£766,000
Growth on file: 6.6% per year over 9 years.
Sales timeline
6 March 2020Most recent
£766,000
+34.4%over 2 years9 May 2017
£570,000
+28.1%over 5 years25 August 2011
£445,000
Median price across the last 5 sales in CF15 8DW: £480,000 (2024–2020).
Nearby sales in CF15 8DW
Versus other Heol Isaf homes
61 Heol Isaf outperforms the street on floor area by a wide margin.
Price per m²
£4,011
Street avg £2,665
Floor Area
191 m²
Street avg 155 m²
Habitable Rooms
8 rooms
Street avg 7 rooms
CO₂ Emissions
9.5 t/year
Street avg 7.1 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Christ Church — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







