40 Cae Lewis, Tongwynlais, Cardiff, CF15 7LR
About 40 Cae Lewis
40 Cae Lewis is a semi-detached house in Tongwynlais, Cardiff, Cardiff (CF15 7LR). It has a recorded floor area of 34 m² (around 366 sq ft), construction records dating it to 1930-1949 and council tax band B. At 34 m² this is the 2nd smallest of 20 units on EPC record in the building, where floor areas span 32–119 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (May 2017) shows a C (score 73). When first surveyed in January 2016 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Poor to Good and lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average.
At 34 m² it sits well below the postcode median (50 m² across 19 EPCs), making it one of the more compact homes locally.
Energy performance
40 Cae Lewis's carbon output is low for the local stock.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Cavity wall insulation installed
More low energy lighting installed
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Planning history
40 Cae Lewis 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
40 Cae Lewis has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£129,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF15 7LR: £176,000 (2024–2009).
Nearby sales in CF15 7LR
43 Cae Lewis, Tongwynlais, Cardiff, CF15 7LR
Sold Jan 2024
£331,40044 Cae Lewis, Tongwynlais, Cardiff, CF15 7LR
Sold Mar 2021
£212,50032 Cae Lewis, Tongwynlais, Cardiff, CF15 7LR
Sold Jun 2017
£150,00050 Cae Lewis, Tongwynlais, Cardiff, CF15 7LR
Sold Dec 2009
£144,00051 Cae Lewis, Tongwynlais, Cardiff, CF15 7LR
Sold Sept 2003
£87,500
Versus other Cae Lewis homes
On floor area, 40 Cae Lewis runs well behind the street norm.
EPC Rating
73 (C)
Street avg 70 (C)
Floor Area
34 m²
Street avg 41 m²
CO₂ Emissions
1.3 t/year
Street avg 1.7 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Similar properties nearby
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1 Castle Street, Taffs Well
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1 Anchor Street, Taffs Well
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1 Abbey Close, Taffs Well
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Pantgwynlais — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







