Flat 1, 137 Penarth Road, Cardiff, CF11 6JU
About Flat 1
Flat 1 is a mid-terrace house in Cardiff (CF11 6JU). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (June 2015) shows an E (score 52), well below the UK norm with real room to improve. Earlier certificates rated it D (August 2014); the latest reading is one band lower. Between certificates, window efficiency went from Poor to Average; while lighting dropped from Very Good to Very Poor. The recommended improvements would lift it to C (score 79), a 2-band jump. The latest certificate is from June 2015, so improvements made since then won't be reflected.
At 128 m² the property is well over the postcode median (63 m² across 19 EPCs), placing it in the larger end of the local stock.
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 runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 29 Jun 2025
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Windows upgraded, improving insulation
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £885 · Includes VAT
Planning history
Flat 1 has no planning applications on record.
But the area is active
12 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.
£225,000
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 6JU: £185,000 (2023–2020).
Nearby sales in CF11 6JU
Versus other Penarth Road homes
Habitable Rooms for Flat 1 runs comfortably ahead of the street norm.
EPC Rating
52 (E)
Street avg 57 (D)
Floor Area
128 m²
Street avg 131 m²
CO₂ Emissions
6.8 t/year
Street avg 6.1 t/year
Habitable Rooms
7 rooms
Street avg 6 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 · 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
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Blaenclydach Street — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.