10 Clos Tecwyn, Cardiff, CF23 5ND
About 10 Clos Tecwyn
10 Clos Tecwyn is a four-bedroom detached house in Cardiff (CF23 5ND). It has a recorded floor area of 150 m² (around 1615 sq ft), construction records dating it to 1991-1995 and council tax band G. Tenure is freehold. The latest certificate (April 2025) shows a C (score 72). The rating has held steady at C across 2 certificates since February 2019. Between certificates, window efficiency went from Average to Good. Records show the property has been extended at some point in its history.
At 150 m² it's 21.5% larger than the typical home in the postcode (124 m² median across 4 EPCs). Today's modelled estimate of £613,000 is 40.9% above the 2020 sale price. Sold January 2020 for £435,000.
What this property has
Inside
- Bedrooms4
- Bathrooms2
- Utility roomYes
- CloakroomYes
- EnsuiteYes
- StudyYes
Outside
- GarageYes
Building
- TenureFreehold
- Previously extendedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Window efficiency improved
Loft insulation upgraded to recommended levels
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Planning history
10 Clos Tecwyn 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£613,000
Modelled from EPC, postcode comparables.
£435,000
Recorded with HM Land Registry.
Sales timeline
3 January 2020Most recent
£435,000
Median price across the last 5 sales in CF23 5ND: £352,000 (2022–2011).
Versus other Clos Tecwyn homes
Floor Area for 10 Clos Tecwyn runs comfortably ahead of the street norm.
Price per m²
£2,900
Street avg £3,167
Floor Area
150 m²
Street avg 127 m²
Habitable Rooms
8 rooms
Street avg 7 rooms
CO₂ Emissions
4.3 t/year
Street avg 4.4 t/year
Similar properties nearby
1 Clos Edno
CF23 5NF
1 Clos Derwen
CF23 5HJ
1 Bronwydd Close
CF23 5RA
1 Beatty Avenue
CF23 5QR
1 Balaclava Road
CF23 5BB
1 Crystal Avenue
CF23 5QJ
1 Clos Tecwyn
CF23 5ND
1 Boverton Street
CF23 5ES
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
Miterdale Close — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







