Flat 3, 25 Marlborough Road, Cardiff, CF23 5BT
About Flat 3
Flat 3 is a mid-terrace house in Cardiff (CF23 5BT). It has a recorded floor area of 57 m² (around 614 sq ft) and construction records dating it to 1900-1929. The latest certificate (May 2018) shows an E (score 39), well below the UK norm with real room to improve. When first surveyed in September 2014 the rating was G, the property has climbed 2 bands since. Between certificates, roof efficiency went from Very Poor to Good and lighting went from Very Poor to Good. The recommended improvements would push it to D (score 68). Main heating runs on electricity. At 57 m² this is the 3rd smallest of 4 units on EPC record in the building, where floor areas span 29–63 m². The building's EPC ratings span E to D, with this unit at the bottom. On EPC score it ranks last in the building (39 versus a best of 67).
At 57 m² the property is well over the postcode median (36 m² across 51 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 84% of similar EPCs).
Everything you need to know about Flat 3
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
Loft insulation installed or upgraded to 250mm+
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919 and has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
Flat 3 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 3 has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£185,000
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 5BT: £485,000 (2024–2017).
Nearby sales in CF23 5BT
Versus other Marlborough Road homes
On epc rating, Flat 3 runs well behind the street norm.
EPC Rating
39 (E)
Street avg 65 (D)
Floor Area
57 m²
Street avg 45 m²
CO₂ Emissions
3.8 t/year
Street avg 2.4 t/year
Habitable Rooms
3 rooms
Street avg 2 rooms
Everything you need to know about Flat 3
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
Marlborough Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.