18 Caspian Close, St Mellons, Cardiff, CF3 0BQ
About 18 Caspian Close
18 Caspian Close is a semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0BQ). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1983-1990 and council tax band C. The latest certificate (August 2014) shows a D (score 63), on the cusp of jumping into the C band. The recommended improvements would lift it to B (score 88), a 2-band jump. The latest certificate is from August 2014, so improvements made since then won't be reflected.
It lags the bulk of the postcode on energy efficiency (less efficient than 86% of similar EPCs).
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 25 Aug 2024
EPC Rating
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Planning history
18 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
18 Caspian Close has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£210,000
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.
Median price across the last 5 sales in CF3 0BQ: £165,000 (2025–2022).
Nearby sales in CF3 0BQ
12 Caspian Close, St Mellons, Cardiff, CF3 0BQ
Sold Jul 2025
£171,50014 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
£158,000
Versus other Caspian Close homes
On floor area, 18 Caspian Close runs well behind the street norm.
EPC Rating
63 (D)
Street avg 71 (C)
Floor Area
50 m²
Street avg 58 m²
CO₂ Emissions
2.5 t/year
Street avg 2.1 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
Similar properties nearby
1 Cathcob Close, St Mellons
CF3 0AH
1 Broadwell Close, St Mellons
CF3 0HU
1 Abernethy Close, St Mellons
CF3 0SB
1 Bulrush Close, St Mellons
CF3 0AZ
1 Blaina Close, St Mellons
CF3 0EB
1 Caraway Close, St Mellons
CF3 0NF
1 Ashfield Court, St Mellons
CF3 0AE
1 Caradoc Close, St Mellons
CF3 0LQ
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
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.







