15b Nelson House, Loudoun Square, Cardiff, CF10 5JG
About 15b Nelson House
15b Nelson House is a semi-detached house in Cardiff (CF10 5JG). It has a recorded floor area of 125 m² (around 1345 sq ft) and construction records dating it to 1950-1966. At 125 m² this is the 16th smallest of 20 units on EPC record in the building, where floor areas span 56–145 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 (56 versus a best of 79). The latest certificate (May 2023) shows a D (score 56), a step below the typical UK home. The recommended improvements would push it to C (score 72).
At 125 m² the property is well over the postcode median (64 m² across 29 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs).
Everything you need to know about 15b Nelson House
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Energy performance
15b Nelson House's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 26 May 2033
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Planning history
15b Nelson House has no planning applications on record.
But the area is active
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
15b Nelson House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£229,000
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.
Versus other Loudoun Square homes
15b Nelson House is notably below the street on epc rating.
EPC Rating
56 (D)
Street avg 73 (C)
Floor Area
125 m²
Street avg 73 m²
CO₂ Emissions
6.1 t/year
Street avg 2.1 t/year
Habitable Rooms
4 rooms
Street avg 3 rooms
Everything you need to know about 15b Nelson House
The true value, the hidden risks and the full sale history, in one report.
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Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
485/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
South Loudon Place — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.