Flat 1, 164 Marlborough Road, Cardiff, CF23 5BZ
About Flat 1
Flat 1 is a semi-detached house in Cardiff (CF23 5BZ). It has a recorded floor area of 59 m² (around 635 sq ft), construction records dating it to 2007 onwards and council tax band D. At 59 m² this is the 3rd smallest of 6 units on EPC record in the building, where floor areas span 53–93 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (June 2020) shows a C (score 79), near the top of the C band. The rating has held steady at C across 3 certificates since November 2008. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while main heating dropped from Very Good to Good.
At 59 m² it sits well below the postcode median (113 m² across 16 EPCs), making it one of the more compact homes locally.
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
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Hot water efficiency decreased
Window efficiency improved
External or internal wall insulation added
Floor insulation added or improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, 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
1 notable application 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.
£194,000
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 CF23 5BZ: £415,000 (2025–2022).
Nearby sales in CF23 5BZ
156 Marlborough Road, Cardiff, CF23 5BZ
Sold Jan 2025
£415,000142 Marlborough Road, Cardiff, CF23 5BZ
Sold Jul 2023
£570,000140a, Marlborough Road, Cardiff, CF23 5BZ
Sold Mar 2023
£240,000Flat 3, 164 Marlborough Road, Cardiff, CF23 5BZ
Sold Jan 2022
£185,000164 Marlborough Road, Cardiff, CF23 5BZ
Sold Jan 2022
£770,000
Versus other Marlborough Road homes
On epc rating, Flat 1 stands well clear of the street.
EPC Rating
79 (C)
Street avg 70 (C)
Floor Area
59 m²
Street avg 63 m²
CO₂ Emissions
1.3 t/year
Street avg 2.3 t/year
Habitable Rooms
3 rooms
Street avg 3 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
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Timbers Square — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.