15 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
About 15 Clos Alyn
15 Clos Alyn is a three-bedroom detached house in Pontprennau, Cardiff, Cardiff (CF23 8LB). It has a recorded floor area of 91 m² (around 980 sq ft), construction records dating it to 1991-1995 and council tax band E. The latest certificate (December 2018) shows a D (score 68), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 83), a 2-band jump.
Today's modelled estimate of £357,000 is 32.2% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£276/sq ft) was about 43.7% above the typical sold price in the postcode. Last sale on file: £270,000 in August 2019.
What this property has
Inside
- Bedrooms3
- Bathrooms2
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
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Planning history
15 Clos Alyn 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
15 Clos Alyn valuation sits well clear of the typical sold price in this postcode.
£357,000
Modelled from EPC, postcode comparables.
£270,000
Recorded with HM Land Registry.
Sales timeline
8 August 2019Most recent
£270,000
Median price across the last 5 sales in CF23 8LB: £220,000 (2025–2019).
Nearby sales in CF23 8LB
21 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
Sold Sept 2025
£334,0003 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
Sold Jun 2023
£270,00033 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
Sold May 2022
£215,00023 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
Sold May 2021
£181,5005 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
Sold Nov 2019
£220,000
Versus other Clos Alyn homes
15 Clos Alyn outperforms the street on price per m² by a wide margin.
Price per m²
£2,967
Street avg £2,628
Floor Area
91 m²
Street avg 79 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.4 t/year
Street avg 3.0 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
0.1 km
Sindercombe Cl — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







