11 Syon Park Close, St Mellons, Cardiff, CF3 0BN
About 11 Syon Park Close
11 Syon Park Close is a semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0BN). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1983-1990 and council tax band B. The latest certificate (March 2025) shows a C (score 75), near the top of the C band. The recommended improvements would push it to B (score 86).
At 90 m² the property is well over the postcode median (66 m² across 38 EPCs), placing it in the larger end of the local stock.
Energy performance
EPC Rating
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Planning history
11 Syon Park Close 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
11 Syon Park Close has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£199,000
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 Syon Park Close homes
Floor Area for 11 Syon Park Close runs comfortably ahead of the street norm.
EPC Rating
75 (C)
Street avg 75 (C)
Floor Area
90 m²
Street avg 68 m²
CO₂ Emissions
2.4 t/year
Street avg 1.9 t/year
Habitable Rooms
5 rooms
Street avg 4 rooms
Similar properties nearby
1 Caraway Close, St Mellons
CF3 0NF
1 Blaina Close, St Mellons
CF3 0EB
1 Bulrush Close, St Mellons
CF3 0AZ
1 Cathcob Close, St Mellons
CF3 0AH
1 Broadwell Close, St Mellons
CF3 0HU
1 Caerleon Close, St Mellons
CF3 0HH
1 Abernethy Close, St Mellons
CF3 0SB
1 Ashfield Court, St Mellons
CF3 0AE
The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
3/mo
Rising year-on-year across the wider district.
Nearest stop
0.3 km
Kwik Save — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







