16 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
About 16 Clos Nant Ddu
16 Clos Nant Ddu is a mid-terrace house in Pontprennau, Cardiff, Cardiff (CF23 8LF). It has a recorded floor area of 55 m² (around 592 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (August 2022) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since August 2012. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 90).
Last sale on file: £162,000 in April 2019. Across the public record there are 6 sales, relatively high churn for a single property. Across 1999–2019, sale prices on this property compounded at 6.1% per year. Today's modelled estimate of £217,000 is 34% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£274/sq ft) was about 55.8% above the typical sold price in the postcode.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Floor insulation added or improved
More low energy lighting installed
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Planning history
16 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
16 Clos Nant Ddu has more than tripled in price since its earliest registered sale in 1999.
£217,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.1% per year over 20 years.
£162,000
Growth on file: 6.1% per year over 20 years.
Sales timeline
3 April 2019Most recent
£162,000
+22.3%over 6 years15 March 2013
£132,500
+1.9%over 2 years9 September 2010
£130,000
+31.3%over 7 years21 March 2003
£99,000
+42.4%over 1 year27 February 2002
£69,500
+39.0%over 2 years13 May 1999
£49,995
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
£215,00036 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
Sold Mar 2019
£168,5003 Clos Nant Ddu, Pontprennau, Cardiff, CF23 8LF
Sold Feb 2019
£176,500
Versus other Clos Nant Ddu homes
On epc rating, 16 Clos Nant Ddu stands well clear of the street.
Price per m²
£2,945
Street avg £2,816
Floor Area
55 m²
Street avg 75 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
1.6 t/year
Street avg 2.7 t/year
Similar properties nearby
1 Almond Drive, Pontprennau
CF23 8HD
1 Clos Nant Ddu, Pontprennau
CF23 8LF
1 Claverton Way, Pontprennau
CF23 8RR
1 Butterfield Drive, Pontprennau
CF23 8NE
1 Amber Close, Pontprennau
CF23 8AW
1 Amblecote Close, Pontprennau
CF23 8BY
1 Charnwood Drive, Pontprennau
CF23 8NN
1 Amberwood Close, Pontprennau
CF23 8BZ
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.







