11a, Cefn Coed Avenue, Cardiff, CF23 6HE
About 11a
11a is a two-bedroom detached house in Cardiff (CF23 6HE). It has a recorded floor area of 66 m² (around 714 sq ft), construction records dating it to 1967-1975 and council tax band D. At 66 m² this is the 3rd smallest of 19 units on EPC record in the building, where floor areas span 66–156 m². The building's EPC ratings span F to C, with this unit at the top. Period features are noted in the property record. The latest certificate (November 2011) shows a C (score 69), just inside the C band. The latest certificate is from November 2011, so improvements made since then won't be reflected.
Across 1995–2021, sale prices on this property compounded at 6.7% per year. Today's modelled estimate of £227,000 is 14.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£277/sq ft) was about 29.7% above the typical sold price in the postcode. At 66 m² it's 18.2% smaller than the typical home in the postcode (81 m² median across 18 EPCs). Sold April 2021 for £198,000. 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
- GarageYes
Building
- Period featuresYes
- RefurbishedYes
Energy performance
11a's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 11 Nov 2021
EPC Rating
Certificate validity
Expired on 11 November 2021
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Planning history
11a 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
11a has more than quadrupled in price since its earliest registered sale in 1995.
£227,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.7% per year over 26 years.
£198,000
Growth on file: 6.7% per year over 26 years.
Sales timeline
25 April 2021Most recent
£198,000
+11.2%over 3 years13 February 2018
£178,000
+29.9%over 11 years1 December 2006
£137,000
+132.2%over 8 years8 October 1998
£59,000
+11.3%over 2 years15 March 1996
£53,000
+43.2%over 10 months30 May 1995
£37,000
Median price across the last 5 sales in CF23 6HE: £390,000 (2025–2018).
Nearby sales in CF23 6HE
Versus other Cefn Coed Avenue homes
Price per m² for 11a runs comfortably ahead of the street norm.
Price per m²
£2,986
Street avg £2,190
Floor Area
66 m²
Street avg 73 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
2.6 t/year
Street avg 2.4 t/year
Similar properties nearby
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The neighbourhood at a glance
Crime
169/mo
Falling year-on-year across the wider district.
Nearest stop
0.3 km
Torrens Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







