6 Clos Elphan, St Mellons, Cardiff, CF3 2AE
About 6 Clos Elphan
6 Clos Elphan is a detached house in St. Mellons, Cardiff, Cardiff (CF3 2AE). It has a recorded floor area of 216 m² (around 2325 sq ft), construction records dating it to 1996-2002 and council tax band H. The latest certificate (January 2022) shows a D (score 68), on the cusp of jumping into the C band. Earlier certificates rated it C (September 2011); the latest reading is one band lower. Between certificates, lighting went from Poor to Very Good. The recommended improvements would push it to C (score 78).
5 planning records sit against the property, 1 approved, 4 refused. Past consents include an extension, a garage conversion and a porch, meaningful when judging how the property has evolved. At 216 m² it's 24.9% larger than the typical home in the postcode (173 m² median across 5 EPCs). Across 2019–2023, sale prices on this property compounded at 4% per year. On a £-per-square-foot basis, the last sale (£301/sq ft) was about 18.2% above the typical sold price in the postcode. Most recent transfer: January 2023 at £700,700.
Energy performance
6 Clos Elphan's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 19 January 2032
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has been extended more than once, we believe a Level 3 building survey should be considered.
From £1,155 · Includes VAT
Planning history
A a garage conversion application was refused at 6 Clos Elphan in 2023.
5 applications on record at 6 Clos Elphan, St Mellons, Cardiff, CF3 2AE
- Mar 2019Change Of UseFullOutcome in report
CHANGE OF USE OF DWELLING TO CARE HOME CLASS C2 AND ALTERATIONS
- Documents
- 8 docs on file
- Reference
- 19/00272/MNR
- More recent applications — locked
- Garage ConversionFeb 2024Decision
- Garage ConversionDec 2023Decision
+ 2 more applications in the report
Unlock 6 Clos Elphan, St Mellons, Cardiff, CF3 2AE's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (5 on record)
- All 5 applications on this property in full, plus 1 notable nearby
- The 95 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 6 Clos Elphan was the highest on Land Registry record across the postcode.
£686,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.0% per year over 4 years.
£700,700
Growth on file: 4.0% per year over 4 years.
Sales timeline
26 January 2023Most recent
£700,700
+16.8%over 3 years6 February 2019
£600,000
Median price across the last 5 sales in CF3 2AE: £620,000 (2026–2012).
Nearby sales in CF3 2AE
10 Clos Elphan, St Mellons, Cardiff, CF3 2AE
Sold Jan 2026
£620,0001 Clos Elphan, St Mellons, Cardiff, CF3 2AE
Sold Oct 2021
£540,0007 Clos Elphan, St Mellons, Cardiff, CF3 2AE
Sold Oct 2018
£665,00011 Clos Elphan, St Mellons, Cardiff, CF3 2AE
Sold Dec 2017
£667,5005 Clos Elphan, St Mellons, Cardiff, CF3 2AE
Sold May 2007
£380,000
Versus other Clos Elphan homes
6 Clos Elphan outperforms the street on price per m² by a wide margin.
Price per m²
£3,244
Street avg £4,284
Floor Area
216 m²
Street avg 175 m²
Habitable Rooms
9 rooms
Street avg 9 rooms
CO₂ Emissions
6.9 t/year
Street avg 5.7 t/year
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The neighbourhood at a glance
Crime
242/mo
Falling year-on-year across the wider district.
Nearest stop
0.3 km
Willow Grove — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







