11 Cleddau Close, St Mellons, Cardiff, CF3 0SG
About 11 Cleddau Close
11 Cleddau Close is a semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0SG). It has a recorded floor area of 52 m² (around 561 sq ft), construction records dating it to 1983-1990 and council tax band D. The latest certificate (May 2009) shows a D (score 62), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 73). The latest certificate is from May 2009, so improvements made since then won't be reflected.
Held since September 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Today's modelled estimate of £215,000 sits 72% above the 2009 sale of £125,000. On a £-per-square-foot basis, the last sale (£223/sq ft) was about 24.1% above the typical sold price in the postcode. At 52 m² it sits well below the postcode median (96 m² across 6 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs).
Energy performance
11 Cleddau Close's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 18 May 2019
EPC Rating
Certificate validity
Expired on 18 May 2019
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Planning history
11 Cleddau 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
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£215,000
Modelled from EPC, postcode comparables.
£125,000
Recorded with HM Land Registry.
Sales timeline
17 September 2009Most recent
£125,000
Median price across the last 5 sales in CF3 0SG: £274,000 (2021–2014).
Nearby sales in CF3 0SG
1 Cleddau Close, St Mellons, Cardiff, CF3 0SG
Sold Oct 2021
£420,0006 Cleddau Close, St Mellons, Cardiff, CF3 0SG
Sold Jun 2018
£274,0007 Cleddau Close, St Mellons, Cardiff, CF3 0SG
Sold May 2018
£295,0005 Cleddau Close, St Mellons, Cardiff, CF3 0SG
Sold Sept 2015
£188,00012 Cleddau Close, St Mellons, Cardiff, CF3 0SG
Sold Nov 2005
£140,000
Versus other Cleddau Close homes
On floor area, 11 Cleddau Close runs well behind the street norm.
Price per m²
£2,399
Street avg £2,470
Floor Area
52 m²
Street avg 98 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
3.2 t/year
Street avg 3.0 t/year
Similar properties nearby
1 Broadwell Close, St Mellons
CF3 0HU
1 Ashdown Close, St Mellons
CF3 0ER
1 Cathcob Close, St Mellons
CF3 0AH
1 Blaina Close, St Mellons
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1 Caraway Close, St Mellons
CF3 0NF
1 Caradoc Close, St Mellons
CF3 0LQ
1 Bulrush Close, St Mellons
CF3 0AZ
1 Abernethy Close, St Mellons
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The neighbourhood at a glance
Crime
242/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Sandbrook Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







