10 Clos Alyn, Pontprennau, Cardiff, CF23 8LB
About 10 Clos Alyn
10 Clos Alyn is a two-bedroom semi-detached house in Pontprennau, Cardiff, Cardiff (CF23 8LB). It has a recorded floor area of 53 m² (around 570 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (May 2023) shows a C (score 72). When first surveyed in June 2011 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Average to Good. The recommended improvements would push it to B (score 89).
Across 1999–2015, sale prices on this property compounded at 5.9% per year. Today's modelled estimate of £231,000 sits 69% above the 2015 sale of £136,700. On a £-per-square-foot basis, the last sale (£240/sq ft) was about 22.4% above the typical sold price in the postcode. At 53 m² it sits well below the postcode median (90 m² across 20 EPCs), making it one of the more compact homes locally. Last changed hands 12 years ago, in January 2015.
What this property has
Inside
- Bedrooms2
- Bathrooms1
Energy performance
EPC Rating
Certificate validity
Valid until 31 May 2033
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
Get a survey for this property
Level 2 HomeBuyer Report
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Planning history
10 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
Sale price has at least doubled since 1999.
£231,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.9% per year over 15 years.
£136,700
Growth on file: 5.9% per year over 15 years.
Sales timeline
12 January 2015Most recent
£136,700
+5.2%over 8 years10 March 2006
£130,000
+129.5%over 6 years22 August 1999
£56,650
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
On floor area, 10 Clos Alyn runs well behind the street norm.
Price per m²
£2,579
Street avg £2,718
Floor Area
53 m²
Street avg 81 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
1.8 t/year
Street avg 3.1 t/year
Similar properties nearby
1 Almond Drive, Pontprennau
CF23 8HD
1 Butterfield Drive, Pontprennau
CF23 8NE
1 Amber Close, Pontprennau
CF23 8AW
1 Amblecote Close, Pontprennau
CF23 8BY
1 Clos Alyn, Pontprennau
CF23 8LB
1 Amberwood Close, Pontprennau
CF23 8BZ
1 Clos Dol Heulog, Pontprennau
CF23 8AT
1 Blackberry Way, Pontprennau
CF23 8FE
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.







