12 Sheerwater Close, St Mellons, Cardiff, CF3 0DB
About 12 Sheerwater Close
12 Sheerwater Close is a three-bedroom detached house in St. Mellons, Cardiff, Cardiff (CF3 0DB). It has a recorded floor area of 82 m² (around 883 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (October 2020) shows a D (score 68), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since June 2014. Between certificates, roof efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 83), a 2-band jump.
Across 2001–2021, sale prices on this property compounded at 11.8% per year. Today's modelled estimate of £305,000 is 32.6% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£261/sq ft) was about 39.5% above the typical sold price in the postcode. Last sale on file: £230,000 in March 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Outside
- Private gardenYes
- GarageYes
Building
- Central heatingYes
- RefurbishedYes
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
Floor insulation added or improved
More low energy lighting installed
Get a survey for this property
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Planning history
12 Sheerwater 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
12 Sheerwater Close has more than quadrupled in price since its earliest registered sale in 2001.
£305,000
Modelled from EPC, postcode comparables and a sale-price growth of 11.8% per year over 20 years.
£230,000
Growth on file: 11.8% per year over 20 years.
Sales timeline
12 March 2021Most recent
£230,000
+24.3%over 6 years11 November 2014
£185,000
+655.1%over 13 years15 January 2001
£24,500
Median price across the last 5 sales in CF3 0DB: £202,000 (2025–2015).
Nearby sales in CF3 0DB
11 Sheerwater Close, St Mellons, Cardiff, CF3 0DB
Sold Jun 2025
£295,0007 Sheerwater Close, St Mellons, Cardiff, CF3 0DB
Sold Jun 2024
£250,0005 Sheerwater Close, St Mellons, Cardiff, CF3 0DB
Sold Dec 2018
£153,0009 Sheerwater Close, St Mellons, Cardiff, CF3 0DB
Sold Apr 2017
£202,0004 Sheerwater Close, St Mellons, Cardiff, CF3 0DB
Sold Sept 2015
£136,000
Versus other Sheerwater Close homes
Price per m²
£2,805
Street avg £2,562
Floor Area
82 m²
Street avg 81 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
3.1 t/year
Street avg 3.1 t/year
Similar properties nearby
1 Brython Drive, St Mellons
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1 Chervil Close, St Mellons
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1 Cathcob Close, St Mellons
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1 Aster Close, St Mellons
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1 Chartley Close, St Mellons
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1 Ashdown Close, St Mellons
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1 Caradoc Close, St Mellons
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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
0.1 km
Sanderling Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







