67 Heol Isaf, Radyr, Cardiff, CF15 8DW
About 67 Heol Isaf
67 Heol Isaf is a semi-detached house in Radyr, Cardiff, Cardiff (CF15 8DW). It has a recorded floor area of 174 m² (around 1873 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (June 2016) shows an F (score 27), near the bottom of the EPC scale. The recommended improvements would lift it to B (score 84), a 4-band jump. The latest certificate is from June 2016, so improvements made since then won't be reflected.
At 174 m² it's 17.6% larger than the typical home in the postcode (148 m² median across 17 EPCs). On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £577,000 sits 60.3% above the 2016 sale of £360,000. One planning record on file: an extension approved in 2021. Past consents include an extension, meaningful when judging how the property has evolved. Last changed hands 10 years ago, in July 2016.
Everything you need to know about 67 Heol Isaf
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
67 Heol Isaf sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 19 Jun 2026
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.
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Planning history
1 application on record at 67 Heol Isaf, Radyr, Cardiff, CF15 8DW
- May 2021ExtensionOutlineOutcome in report
CONSTRUCTION OF A GABLE END ROOF EXTENSION AND REAR DORMER
- Documents
- 5 docs on file
- Reference
- 21/01071/DCH
Unlock 67 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- Every decision — granted, refused or withdrawn (1 on record)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 5 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
67 Heol Isaf valuation sits well clear of the typical sold price in this postcode.
£577,000
Modelled from EPC, postcode comparables.
£360,000
Recorded with HM Land Registry.
Sales timeline
7 July 2016Most recent
£360,000
Median price across the last 5 sales in CF15 8DW: £480,000 (2024–2020).
Nearby sales in CF15 8DW
Versus other Heol Isaf homes
EPC Rating for 67 Heol Isaf lags the street by a wide margin.
Price per m²
£2,069
Street avg £2,814
Floor Area
174 m²
Street avg 156 m²
Habitable Rooms
6 rooms
Street avg 7 rooms
CO₂ Emissions
11.0 t/year
Street avg 7.0 t/year
Everything you need to know about 67 Heol Isaf
The true value, the hidden risks and the full sale history, in one report.
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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.