13 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
About 13 Clos Alyn
13 Clos Alyn is a detached house in Pontprennau, Cardiff, Cardiff (CF23 8LB). It has a recorded floor area of 98 m² (around 1055 sq ft), construction records dating it to 1991-1995 and council tax band F. The latest certificate (November 2021) shows a C (score 73). When first surveyed in December 2012 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 86).
Energy performance
EPC Rating
Certificate validity
Valid until 23 November 2031
Property Improvements
Changes detected from historical EPC data
Low energy lighting percentage decreased
Wall insulation upgraded
More low energy lighting installed
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Planning history
13 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
13 Clos Alyn has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£371,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in CF23 8LB: £270,000 (2026–2021).
Nearby sales in CF23 8LB
4 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
Sold Feb 2026
£300,00021 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
£181,500
Versus other Clos Alyn homes
EPC Rating for 13 Clos Alyn runs comfortably ahead of the street norm.
EPC Rating
73 (C)
Street avg 67 (D)
Floor Area
98 m²
Street avg 79 m²
CO₂ Emissions
2.8 t/year
Street avg 3.0 t/year
Habitable Rooms
6 rooms
Street avg 5 rooms
Similar properties nearby
1 Clos Dol Heulog, Pontprennau
CF23 8AT
1 Blackberry Way, Pontprennau
CF23 8FE
1 Ambergate Drive, Pontprennau
CF23 8AX
1 Chamomile Close, Pontprennau
CF23 8RE
1 Clos Nant Mwlan, Pontprennau
CF23 8NA
1 Clos Nant Y Cwm, Pontprennau
CF23 8LG
1 Amberwood Close, Pontprennau
CF23 8BZ
1 Clos Alyn, Pontprennau
CF23 8LB
The neighbourhood at a glance
Crime
169/mo
Falling 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.







