23a, First Floor Flat, High Street, Llandaff, Cardiff, CF5 2DY
About 23a
23a is an end-of-terrace house in Llandaff, Cardiff, Cardiff (CF5 2DY). It has a recorded floor area of 51 m² (around 549 sq ft) and construction records dating it to 1900-1929. The latest certificate (August 2023) shows a D (score 55), a step below the typical UK home. When first surveyed in October 2009 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good. The recommended improvements would push it to C (score 72).
At 51 m² it's 27.1% smaller than the typical home in the postcode (70 m² median across 8 EPCs).
Everything you need to know about 23a
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Wall insulation improved
More low energy lighting installed
Low energy lighting percentage decreased
Heating controls upgraded for better temperature management
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
23a 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
23a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£163,000
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 CF5 2DY: £360,000 (2024–2019).
Nearby sales in CF5 2DY
3 St Michaels Mews, High Street, Llandaff, Cardiff, CF5 2DY
Sold Aug 2024
£360,0002 St Michaels Mews, High Street, Llandaff, Cardiff, CF5 2DY
Sold Jul 2023
£310,0001 St Michaels Mews, High Street, Llandaff, Cardiff, CF5 2DY
Sold May 2023
£355,00015 High Street, Llandaff, Cardiff, CF5 2DY
Sold Apr 2021
£585,00021a, High Street, Llandaff, Cardiff, CF5 2DY
Sold May 2019
£432,500
Versus other High Street homes
On epc rating, 23a stands well clear of the street.
EPC Rating
55 (D)
Street avg 52 (E)
Floor Area
51 m²
Street avg 57 m²
CO₂ Emissions
3.4 t/year
Street avg 3.2 t/year
Everything you need to know about 23a
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Black Lion — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.