1a, Castell Coch View, Tongwynlais, Cardiff, CF15 7LA
About 1a
1a is a two-bedroom semi-detached house in Tongwynlais, Cardiff, Cardiff (CF15 7LA). It has a recorded floor area of 60 m² (around 646 sq ft), construction records dating it to 1976-1982 and council tax band D. The latest certificate (July 2022) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2011. Between certificates, wall efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 87), a 2-band jump.
At 60 m² it sits well below the postcode median (126 m² across 28 EPCs), making it one of the more compact homes locally. Across 1997–2022, sale prices on this property compounded at 6.9% per year. On a £-per-square-foot basis, the last sale (£403/sq ft) was about 92.2% above the typical sold price in the postcode. Most recent transfer: November 2022 at £260,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms2
- Bathrooms1
Outside
- Private gardenYes
- ParkingOff road
Building
- Heating systemGas
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
More low energy lighting installed
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Level 2 HomeBuyer Report
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Planning history
1a 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
1a has more than quadrupled in price since its earliest registered sale in 1997.
£268,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 25 years.
£260,000
Growth on file: 6.9% per year over 25 years.
Sales timeline
11 November 2022Most recent
£260,000
+83.7%over 10 years16 December 2011
£141,500
-8.7%over 5 years3 August 2006
£155,000
+72.2%over 3 years10 July 2003
£90,000
+87.5%over 6 years12 June 1997
£48,000
Median price across the last 5 sales in CF15 7LA: £2,200 (2025–2022).
Nearby sales in CF15 7LA
11 Castell Coch View, Tongwynlais, Cardiff, CF15 7LA
Sold Oct 2025
£390,00029 Castell Coch View, Tongwynlais, Cardiff, CF15 7LA
Sold Dec 2023
£2,20023 Castell Coch View, Tongwynlais, Cardiff, CF15 7LA
Sold Dec 2023
£2,20021 Castell Coch View, Tongwynlais, Cardiff, CF15 7LA
Sold Dec 2023
£2,2006 Castell Coch View, Tongwynlais, Cardiff, CF15 7LA
Sold Aug 2022
£97,000
Versus other Castell Coch View homes
1a outperforms the street on price per m² by a wide margin.
Price per m²
£4,333
Street avg £2,357
Floor Area
60 m²
Street avg 133 m²
Habitable Rooms
3 rooms
Street avg 6 rooms
CO₂ Emissions
2.5 t/year
Street avg 4.9 t/year
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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
Castell Coch View — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







