9 Clos Tecwyn, Cardiff, CF23 5ND
About 9 Clos Tecwyn
9 Clos Tecwyn is a four-bedroom detached house in Cardiff (CF23 5ND). It has a recorded floor area of 115 m² (around 1238 sq ft), construction records dating it to 1991-1995 and council tax band G. The latest certificate (January 2024) shows a C (score 72). When first surveyed in March 2011 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Good to Very Good; while roof efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 83).
Today's modelled estimate of £501,000 sits 66.6% above the 2011 sale of £300,700. 15 years since the last transfer (June 2011). At 115 m² it's 16.3% smaller than the typical home in the postcode (137 m² median across 4 EPCs).
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Dining roomYes
- EnsuiteYes
Outside
- Private gardenRear
- DrivewayYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
More low energy lighting installed
Get a survey for this property
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Planning history
9 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
9 Clos Tecwyn valuation sits well clear of the typical sold price in this postcode.
£501,000
Modelled from EPC, postcode comparables.
£300,700
Recorded with HM Land Registry.
Sales timeline
29 June 2011Most recent
£300,700
Median price across the last 5 sales in CF23 5ND: £435,000 (2022–2013).
Versus other Clos Tecwyn homes
On years held, 9 Clos Tecwyn stands well clear of the street.
Price per m²
£2,615
Street avg £3,239
Floor Area
115 m²
Street avg 136 m²
Habitable Rooms
7 rooms
Street avg 8 rooms
CO₂ Emissions
3.4 t/year
Street avg 4.6 t/year
Similar properties nearby
1 Crystal Avenue
CF23 5QJ
1 Clos Tecwyn
CF23 5ND
1 Clos Derwen
CF23 5HJ
1 Clos Edno
CF23 5NF
1 Bronwydd Close
CF23 5RA
1 Beatty Avenue
CF23 5QR
1 Balaclava Road
CF23 5BB
1 Ambleside Avenue
CF23 5PX
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.







