1 Heol Penllwyn, Pentyrch, Cardiff, CF15 9PZ
About 1 Heol Penllwyn
1 Heol Penllwyn is a two-bedroom end-of-terrace house in Pentyrch, Cardiff, Cardiff (CF15 9PZ). It has a recorded floor area of 79 m² (around 850 sq ft), construction records dating it to 1950-1966 and council tax band D. The latest certificate (August 2025) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since October 2013. Between certificates, roof efficiency went from Average to Good; while window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 77). It has already been extended once and our model flags further extension potential, a sign of buyer flexibility.
Across 1999–2014, sale prices on this property compounded at 6.8% per year. Today's modelled estimate of £300,000 sits 83.2% above the 2014 sale of £163,750. Last sold in November 2014, so it's been off the market for around 12 years.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
Outside
- Private gardenSouth-facing
Building
- Previously extendedYes
- RefurbishedYes
- Extension potentialPossible
Energy performance
EPC Rating
Certificate validity
Valid until 18 August 2035
Property Improvements
Changes detected from historical EPC data
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Level 2 HomeBuyer Report
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Planning history
1 Heol Penllwyn has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
1 Heol Penllwyn has more than doubled in price since the earliest registered sale in 1999.
£300,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.8% per year over 15 years.
£163,750
Growth on file: 6.8% per year over 15 years.
Sales timeline
17 November 2014Most recent
£163,750
+173.1%over 15 years26 August 1999
£59,950
Median price across the last 3 sales in CF15 9PZ: £165,000 (2017–2004).
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The neighbourhood at a glance
Crime
85/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Pentyrch Cemetery — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







