Flat 1, 23 Clare Street, Cardiff, CF11 6BD
About Flat 1
Flat 1 is a mid-terrace house in Cardiff (CF11 6BD). It has a recorded floor area of 37 m² (around 398 sq ft), construction records dating it to 1900-1929 and council tax band B. At 37 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 32–68 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (February 2025) shows a C (score 73). The rating has held steady at C across 2 certificates since February 2014. Between certificates, lighting went from Good to Very Good.
At 37 m² it sits well below the postcode median (55 m² across 20 EPCs), making it one of the more compact homes locally. Its energy rating outperforms most of the postcode (better than 80% of similar EPCs).
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Flat 1's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 10 February 2035
Property Improvements
Changes detected from historical EPC data
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
Flat 1 has no planning applications on record.
But the area is active
10 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Flat 1 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£126,000
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 CF11 6BD: £85,000 (2025–2018).
Nearby sales in CF11 6BD
23 Clare Street, Cardiff, CF11 6BD
Sold Sept 2025
£455,000Flat 3, 39 Clare Street, Cardiff, CF11 6BD
Sold Apr 2018
£65,000Flat 2, 39 Clare Street, Cardiff, CF11 6BD
Sold Apr 2018
£85,000Flat 1, 39 Clare Street, Cardiff, CF11 6BD
Sold Apr 2018
£85,000Flat 4, 39 Clare Street, Cardiff, CF11 6BD
Sold Apr 2018
£65,000
Versus other Clare Street homes
EPC Rating for Flat 1 runs comfortably ahead of the street norm.
EPC Rating
73 (C)
Street avg 64 (D)
Floor Area
37 m²
Street avg 45 m²
CO₂ Emissions
1.4 t/year
Street avg 2.6 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Everything you need to know about Flat 1
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Crime
362/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Clare Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.