12 Pwllhelyg, Tongwynlais, Cardiff, CF15 7HX
About 12 Pwllhelyg
12 Pwllhelyg is a three-bedroom detached house in Tongwynlais, Cardiff, Cardiff (CF15 7HX). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1983-1990 and council tax band E. The latest certificate (March 2014) shows an E (score 45), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since May 2013. Between certificates, wall efficiency dropped from Good to Poor and window efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 87), a 3-band jump. The latest certificate is from March 2014, so improvements made since then won't be reflected.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 2013–2017, sale prices on this property compounded at 4.6% per year. Today's modelled estimate of £389,000 is 39.2% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£279/sq ft) was about 39.8% above the typical sold price in the postcode. Last sold in September 2017, so it's been off the market for around 9 years.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Utility roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenFront and rear
- GarageSingle
Building
- RefurbishedYes
Energy performance
12 Pwllhelyg 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This certificate is over 10 years old and is no longer valid.Expired 09 Mar 2024
EPC Rating
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Planning history
12 Pwllhelyg has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
12 Pwllhelyg valuation sits well clear of the typical sold price in this postcode.
£389,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.6% per year over 4 years.
£279,500
Growth on file: 4.6% per year over 4 years.
Sales timeline
24 September 2017Most recent
£279,500
+18.9%over 3 years29 November 2013
£235,000
Median price across the last 5 sales in CF15 7HX: £320,000 (2024–2014).
Nearby sales in CF15 7HX
3 Pwllhelyg, Tongwynlais, Cardiff, CF15 7HX
Sold Dec 2024
£420,0001 Pwllhelyg, Tongwynlais, Cardiff, CF15 7HX
Sold Oct 2023
£395,0005 Pwllhelyg, Tongwynlais, Cardiff, CF15 7HX
Sold Nov 2022
£320,00010 Pwllhelyg, Tongwynlais, Cardiff, CF15 7HX
Sold May 2016
£260,0004 Pwllhelyg, Tongwynlais, Cardiff, CF15 7HX
Sold Nov 2014
£248,000
Versus other Pwllhelyg homes
EPC Rating for 12 Pwllhelyg lags the street by a wide margin.
Price per m²
£3,005
Street avg £2,968
Floor Area
93 m²
Street avg 102 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
6.1 t/year
Street avg 4.2 t/year
Similar properties nearby
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1 Church Street, Taffs Well
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1 Clos Llewellyn, Taffs Well
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1 Bute Villa, Taffs Well
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1 Cwm Gwynlais, Tongwynlais
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1 Castle Road, Tongwynlais
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Cwm Gwynlais — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







