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).
Untraded for 15 years, with the last transfer in June 2011. Today's modelled estimate of £517,000 sits 71.9% above the 2011 sale of £300,700. 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
Certificate validity
Valid until 13 January 2034
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
Level 2 HomeBuyer Report
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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.
£517,000
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 Beatty Avenue
CF23 5QR
1 Bronwydd Close
CF23 5RA
1 Balaclava Road
CF23 5BB
1 Ambleside Avenue
CF23 5PX
The neighbourhood at a glance
Crime
169/mo
Falling 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.







