12 Caspian Close, St Mellons, Cardiff, CF3 0BQ
About 12 Caspian Close
12 Caspian Close is a mid-terrace house in St. Mellons, Cardiff, Cardiff (CF3 0BQ). It has a recorded floor area of 56 m² (around 603 sq ft), construction records dating it to 1991-1995 and council tax band B. The latest certificate (January 2017) shows a C (score 73). When first surveyed in June 2010 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good, hot-water efficiency went from Average to Good and main heating went from Average to Good; while lighting dropped from Good to Average. The recommended improvements would push it to B (score 89).
A recent sale: £171,500 in July 2025. On a £-per-square-foot basis, the last sale (£285/sq ft) was about 69.4% above the typical sold price in the postcode.
Energy performance
EPC Rating
Certificate validity
Valid until 5 January 2027
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
Single glazing replaced with double or better glazing
Low energy lighting percentage decreased
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Planning history
12 Caspian 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 Caspian Close valuation sits well clear of the typical sold price in this postcode.
£169,000
Modelled from EPC, postcode comparables.
£171,500
Recorded with HM Land Registry.
Sales timeline
31 July 2025Most recent
£171,500
Median price across the last 5 sales in CF3 0BQ: £165,000 (2024–2021).
Nearby sales in CF3 0BQ
14 Caspian Close, St Mellons, Cardiff, CF3 0BQ
Sold Dec 2024
£165,00021 Caspian Close, St Mellons, Cardiff, CF3 0BQ
Sold Dec 2023
£165,00015 Caspian Close, St Mellons, Cardiff, CF3 0BQ
Sold May 2022
£186,0005 Caspian Close, St Mellons, Cardiff, CF3 0BQ
Sold Feb 2022
£158,00020 Caspian Close, St Mellons, Cardiff, CF3 0BQ
Sold Dec 2021
£169,595
Versus other Caspian Close homes
On years held, 12 Caspian Close runs well behind the street norm.
Price per m²
£3,063
Street avg £2,177
Floor Area
56 m²
Street avg 58 m²
Habitable Rooms
4 rooms
Street avg 3 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.1 t/year
Similar properties nearby
1 Aspen Close, St Mellons
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1 Caspian Close, St Mellons
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1 Bulrush Close, St Mellons
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1 Caraway Close, St Mellons
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1 Blaina Close, St Mellons
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1 Broadwell 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
Coleford Drive — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







