23 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA
About 23 Clos Nant Mwlan
23 Clos Nant Mwlan is a three-bedroom detached house in Pontprennau, Cardiff, Cardiff (CF23 8NA). It has a recorded floor area of 93 m² (around 1001 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (November 2025) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since December 2008. Between certificates, lighting went from Poor to Average; while roof efficiency dropped from Good to Average and window efficiency dropped from Average to Poor. The recommended improvements would push it to C (score 76). Records show the property has been extended at some point in its history.
Across 2011–2016, sale prices on this property compounded at 8.4% per year. Today's modelled estimate of £371,000 is 37.4% above the 2016 sale price. On a £-per-square-foot basis, the last sale (£270/sq ft) was about 43.6% above the typical sold price in the postcode. Last changed hands 10 years ago, in September 2016.
What this property has
Inside
- Bedrooms3
- Dining roomYes
- Utility roomYes
- CloakroomYes
- EnsuiteYes
Outside
- Private gardenRear
- ParkingOff road
Building
- Previously extendedYes
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
23 Clos Nant Mwlan 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
23 Clos Nant Mwlan valuation sits well clear of the typical sold price in this postcode.
£371,000
Modelled from EPC, postcode comparables and a sale-price growth of 8.4% per year over 5 years.
£270,000
Growth on file: 8.4% per year over 5 years.
Sales timeline
1 September 2016Most recent
£270,000
+55.2%over 5 years21 March 2011
£174,000
Median price across the last 5 sales in CF23 8NA: £370,000 (2025–2024).
Nearby sales in CF23 8NA
32 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA
Sold Jul 2025
£326,00011 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA
Sold Jul 2025
£357,50022 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA
Sold Jul 2025
£410,00017 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA
Sold Mar 2025
£423,00012 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA
Sold Sept 2024
£370,000
Versus other Clos Nant Mwlan homes
Price per m²
£2,903
Street avg £2,710
Floor Area
93 m²
Street avg 100 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.2 t/year
Street avg 3.9 t/year
Similar properties nearby
1 Clos Alyn, Pontprennau
CF23 8LB
1 Clos Dol Heulog, Pontprennau
CF23 8AT
1 Amberwood Close, Pontprennau
CF23 8BZ
1 Amblecote Close, Pontprennau
CF23 8BY
1 Amber Close, Pontprennau
CF23 8AW
1 Butterfield Drive, Pontprennau
CF23 8NE
1 Blackberry Way, Pontprennau
CF23 8FE
1 Clos Nant Mwlan, Pontprennau
CF23 8NA
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
0.2 km
Clos Cwm Du — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







