Flat 5, 164 Marlborough Road, Cardiff, CF23 5BZ
About Flat 5
Flat 5 is a semi-detached house in Cardiff (CF23 5BZ). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1930-1949 and council tax band D. At 93 m² this is the largest unit on EPC record across the building (53–93 m²). The building's EPC ratings span D to C, with this unit at the bottom. On EPC score it ranks last in the building (65 versus a best of 80). The latest certificate (June 2020) shows a D (score 65), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2010. Between certificates, wall efficiency went from Very Poor to Poor and lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 69).
At 93 m² it's 17.3% smaller than the typical home in the postcode (113 m² median across 16 EPCs).
Everything you need to know about Flat 5
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Certificate validity
Valid until 29 June 2030
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
Wall insulation 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 £885 · Includes VAT
Planning history
Flat 5 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 5 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£269,000
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: £480,000 (2026–2023).
Nearby sales in CF23 5BZ
150 Marlborough Road, Cardiff, CF23 5BZ
Sold Jan 2026
£480,000140a, Marlborough Road, Cardiff, CF23 5BZ
Sold Nov 2025
£235,000148 Marlborough Road, Cardiff, CF23 5BZ
Sold Sept 2025
£505,000156 Marlborough Road, Cardiff, CF23 5BZ
Sold Jan 2025
£415,000142 Marlborough Road, Cardiff, CF23 5BZ
Sold Jul 2023
£570,000
Versus other Marlborough Road homes
On floor area, Flat 5 stands well clear of the street.
EPC Rating
65 (D)
Street avg 72 (C)
Floor Area
93 m²
Street avg 58 m²
CO₂ Emissions
3.7 t/year
Street avg 1.9 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Everything you need to know about Flat 5
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
169/mo
Falling 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.