5 Clos Dyfnaint, St Mellons, Cardiff, CF3 0DY
About 5 Clos Dyfnaint
5 Clos Dyfnaint is a mid-terrace house in St. Mellons, Cardiff, Cardiff (CF3 0DY). It has a recorded floor area of 51 m² (around 549 sq ft), construction records dating it to 1991-1995 and council tax band B. The latest certificate (February 2026) returns a high B (score 89), putting the home a stone's throw from an A rating. This certificate was lodged in the last six months, so the rating reflects current condition.
At 51 m² it's 29.2% smaller than the typical home in the postcode (72 m² median across 18 EPCs). Its energy rating outperforms most of the postcode (better than 78% of similar EPCs).
Energy performance
5 Clos Dyfnaint's carbon output is low for the local stock.
EPC Rating
Certificate validity
Valid until 5 February 2036
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Planning history
5 Clos Dyfnaint 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
5 Clos Dyfnaint has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£150,000
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.
Versus other Clos Dyfnaint homes
On floor area, 5 Clos Dyfnaint runs well behind the street norm.
EPC Rating
89 (B)
Street avg 78 (C)
Floor Area
51 m²
Street avg 74 m²
CO₂ Emissions
1.1 t/year
Street avg 1.7 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
Similar properties nearby
1 Caspian Close, St Mellons
CF3 0BQ
1 Aspen Close, St Mellons
CF3 0BT
1 Brookfield Drive, St Mellons
CF3 0BA
1 Caerleon Close, St Mellons
CF3 0HH
1 Broadlands Court, St Mellons
CF3 0BZ
1 Ashfield Court, St Mellons
CF3 0AE
1 Bulrush Close, St Mellons
CF3 0AZ
1 Caraway Close, St Mellons
CF3 0NF
The neighbourhood at a glance
Crime
242/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Clos Gwlad-Yr-Haf — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







