11 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
About 11 Clos Nant Ddu
11 Clos Nant Ddu is a semi-detached house in Pontprennau, Cardiff, Cardiff (CF23 8LF). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (July 2020) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2010. Between certificates, lighting went from Good to Very Good; while hot-water efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 86), a 2-band jump.
At 74 m² the property is well over the postcode median (55 m² across 15 EPCs), placing it in the larger end of the local stock.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
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Planning history
11 Clos Nant Ddu 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
11 Clos Nant Ddu has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£279,000
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 8LF: £200,000 (2025–2019).
Nearby sales in CF23 8LF
15 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
Sold Oct 2025
£390,00030 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
Sold Oct 2024
£200,00020 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
Sold Mar 2023
£215,00016 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
Sold Apr 2019
£162,00036 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
Sold Mar 2019
£168,500
Versus other Clos Nant Ddu homes
On epc rating, 11 Clos Nant Ddu runs well behind the street norm.
EPC Rating
61 (D)
Street avg 69 (C)
Floor Area
74 m²
Street avg 73 m²
CO₂ Emissions
3.6 t/year
Street avg 2.6 t/year
Habitable Rooms
5 rooms
Street avg 4 rooms
Similar properties nearby
1 Amber Close, Pontprennau
CF23 8AW
1 Butterfield Drive, Pontprennau
CF23 8NE
1 Amblecote Close, Pontprennau
CF23 8BY
1 Charnwood Drive, Pontprennau
CF23 8NN
1 Amberwood Close, Pontprennau
CF23 8BZ
1 Claverton Way, Pontprennau
CF23 8RR
1 Clos Dol Heulog, Pontprennau
CF23 8AT
1 Clos Alyn, Pontprennau
CF23 8LB
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
Pontprennau Community Centre — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







