20 Caspian Close, St Mellons, Cardiff, CF3 0BQ
About 20 Caspian Close
20 Caspian Close is a two-bedroom semi-detached house in St. Mellons, Cardiff, Cardiff (CF3 0BQ). It has a recorded floor area of 58 m² (around 624 sq ft), construction records dating it to 1983-1990 and council tax band B. The latest certificate (May 2014) shows a C (score 69), just inside the C band. The rating has held steady at C across 2 certificates since November 2009. Between certificates, roof efficiency went from Average to Good and lighting went from Good to Very Good. The recommended improvements would push it to B (score 89). The latest certificate is from May 2014, so improvements made since then won't be reflected. The home occupies a cul-de-sac position.
3 planning records sit against the property, 3 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved. Across 2016–2021, sale prices on this property compounded at 6.9% per year. Today's modelled estimate of £198,000 is 16.7% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£272/sq ft) was about 65.9% above the typical sold price in the postcode. Last sale on file: £169,595 in December 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms2
- Bathrooms1
Outside
- Private gardenYes
- ParkingOff road
- Cul-de-sacYes
Energy performance
20 Caspian 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This certificate is over 10 years old and is no longer valid.Expired 25 May 2024
EPC Rating
Property Improvements
Changes detected from historical EPC data
Loft insulation upgraded to recommended levels
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Planning history
Planning history at 20 Caspian Close is exclusively tree-management applications — typical for a property with mature trees on or near the plot.
3 applications on record at 20 Caspian Close, St Mellons, Cardiff, CF3 0BQ
- Oct 2017Tree WorksTreesOutcome in report
TREE IS IN PUBLIC OPEN SPACE BETWEEN CASPIAN CLOSE AND PAVILAND CLOSE
- Reference
- STME/TP/17/00194
- More recent applications — locked
- Tree WorksFeb 2026Decision
- Tree WorksJun 2019Decision
Unlock 20 Caspian Close, St Mellons, Cardiff, CF3 0BQ's full planning history
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- Every decision — granted, refused or withdrawn (3 on record)
- All 3 applications on this property in full, plus 1 notable nearby
- The 3 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
20 Caspian Close saw 3 transfers in just over a decade — high turnover for the postcode.
£198,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 5 years.
£169,595
Growth on file: 6.9% per year over 5 years.
Sales timeline
17 December 2021Most recent
£169,595
+28.5%over 3 years16 March 2018
£132,000
+8.6%over 1 year21 December 2016
£121,500
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 price per m², 20 Caspian Close stands well clear of the street.
Price per m²
£2,924
Street avg £2,187
Floor Area
58 m²
Street avg 58 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.2 t/year
Street avg 2.1 t/year
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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
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.







