21 Clos Y Nant, Plasmawr Road, Cardiff, CF5 3JP
About 21 Clos Y Nant
21 Clos Y Nant is an end-of-terrace house in Cardiff (CF5 3JP). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1967-1975 and council tax band B. At 49 m² this is the 24th smallest of 36 units on EPC record in the building, where floor areas span 32–98 m². The building's EPC ratings span D to C, with this unit at the top. The latest certificate (May 2018) shows a C (score 76), near the top of the C band. When first surveyed in January 2014 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Very Poor to Good and lighting went from Poor to Very Good.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Roof insulation improved
Roof insulation improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Heating controls upgraded for better temperature management
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Level 2 HomeBuyer Report
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Planning history
21 Clos Y Nant has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
21 Clos Y Nant has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£135,000
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 Clos Y Nant homes
EPC Rating
76 (C)
Street avg 73 (C)
Floor Area
49 m²
Street avg 48 m²
CO₂ Emissions
1.6 t/year
Street avg 1.9 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Poplar Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







