20 Clos Nant Mwlan, Pontprennau, Cardiff, CF23 8NA
About 20 Clos Nant Mwlan
20 Clos Nant Mwlan is a three-bedroom detached house in Pontprennau, Cardiff, Cardiff (CF23 8NA). It has a recorded floor area of 77 m² (around 829 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (June 2015) shows a D (score 66), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 81), a 2-band jump. The latest certificate is from June 2015, so improvements made since then won't be reflected. Other recorded features include a conservatory.
Across 2001–2017, sale prices on this property compounded at 5.9% per year. Today's modelled estimate of £337,000 is 34.8% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£302/sq ft) was about 61.4% above the typical sold price in the postcode. Last sold in April 2017, so it's been off the market for around 9 years. At 77 m² it's 23% smaller than the typical home in the postcode (100 m² median across 23 EPCs).
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- CloakroomYes
- EnsuiteYes
- ConservatoryYes
Outside
- Private gardenRear
- GarageIntegral
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 20 Jun 2025
EPC Rating
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Planning history
20 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
20 Clos Nant Mwlan has more than doubled in price since the earliest registered sale in 2001.
£337,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.9% per year over 16 years.
£250,000
Growth on file: 5.9% per year over 16 years.
Sales timeline
6 April 2017Most recent
£250,000
+6.4%over 1 year17 September 2015
£234,950
+137.3%over 14 years23 March 2001
£99,000
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
Floor Area for 20 Clos Nant Mwlan lags the street by a wide margin.
Price per m²
£3,247
Street avg £2,694
Floor Area
77 m²
Street avg 100 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
2.9 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.







