21 Clos Nanteos, Pontprennau, Cardiff, CF23 8XR
About 21 Clos Nanteos
21 Clos Nanteos is a detached house in Pontprennau, Cardiff, Cardiff (CF23 8XR). It has a recorded floor area of 113 m² (around 1219 sq ft), construction records dating it to 1996-2002 and council tax band F. The latest certificate (November 2009) shows a C (score 69), just inside the C band. The latest certificate is from November 2009, so improvements made since then won't be reflected.
It hasn't traded since June 2002, a hold of 24 years that's notably long for the area. Today's modelled estimate of £442,000 sits 151.1% above the 2002 sale of £175,995. On a £-per-square-foot basis, the last sale (£144/sq ft) was about 22.3% below the postcode norm.
Energy performance
21 Clos Nanteos's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 12 Nov 2019
EPC Rating
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Planning history
21 Clos Nanteos 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
21 Clos Nanteos valuation sits well clear of the typical sold price in this postcode.
£442,000
Modelled from EPC, postcode comparables.
£175,995
Recorded with HM Land Registry.
Sales timeline
27 June 2002Most recent
£175,995
Median price across the last 5 sales in CF23 8XR: £290,000 (2024–2018).
Nearby sales in CF23 8XR
17 Clos Nanteos, Pontprennau, Cardiff, CF23 8XR
Sold Feb 2024
£380,00014 Clos Nanteos, Pontprennau, Cardiff, CF23 8XR
Sold Jan 2024
£392,0001 Clos Nanteos, Pontprennau, Cardiff, CF23 8XR
Sold Oct 2020
£290,0005 Clos Nanteos, Pontprennau, Cardiff, CF23 8XR
Sold Oct 2018
£265,0009 Clos Nanteos, Pontprennau, Cardiff, CF23 8XR
Sold Sept 2018
£267,500
Versus other Clos Nanteos homes
21 Clos Nanteos outperforms the street on years held by a wide margin.
Price per m²
£1,554
Street avg £2,450
Floor Area
113 m²
Street avg 104 m²
Habitable Rooms
7 rooms
Street avg 6 rooms
CO₂ Emissions
3.7 t/year
Street avg 3.2 t/year
Similar properties nearby
1 Clos Nant Y Cwm, Pontprennau
CF23 8LG
1 Allt Y Wennol, Pontprennau
CF23 8AS
1 Capel Edeyrn, Pontprennau
CF23 8XJ
1 Acorn Grove, Pontprennau
CF23 8NG
1 Chamomile Close, Pontprennau
CF23 8RE
1 Clos Nant Mwlan, Pontprennau
CF23 8NA
1 Ambergate Drive, Pontprennau
CF23 8AX
1 Blackberry Way, Pontprennau
CF23 8FE
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
0.4 km
Premier Inn — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







