13b Nelson House, Loudoun Square, Cardiff, CF10 5JG
About 13b Nelson House
13b Nelson House is a detached house in Cardiff (CF10 5JG). It has a recorded floor area of 122 m² (around 1313 sq ft) and construction records dating it to 1950-1966. At 122 m² this is the 15th 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 top. The latest certificate (April 2024) shows a C (score 77), near the top of the C band. The recommended improvements would push it to B (score 82).
At 122 m² the property is well over the postcode median (64 m² across 29 EPCs), placing it in the larger end of the local stock.
Energy performance
EPC Rating
Certificate validity
Valid until 3 April 2034
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Planning history
13b 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
13b Nelson House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£256,000
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
13b Nelson House outperforms the street on habitable rooms by a wide margin.
EPC Rating
77 (C)
Street avg 72 (C)
Floor Area
122 m²
Street avg 73 m²
CO₂ Emissions
2.7 t/year
Street avg 2.3 t/year
Habitable Rooms
5 rooms
Street avg 3 rooms
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.







