14 Nant Y Gwladys, St Fagans, Cardiff, CF5 6HJ
About 14 Nant Y Gwladys
14 Nant Y Gwladys is a detached house in St. Fagans, Cardiff, Cardiff (CF5 6HJ). It has a recorded floor area of 174 m² (around 1873 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (March 2016) shows a D (score 55), a step below the typical UK home. The recommended improvements would lift it to B (score 83), a 2-band jump. The latest certificate is from March 2016, so improvements made since then won't be reflected.
Held since August 2001 — that's 25 years off the open market, well above the local norm. At 174 m² the property is well over the postcode median (113 m² across 4 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £694,000 sits 189.2% above the 2001 sale of £240,000. On a £-per-square-foot basis, the last sale (£128/sq ft) was about 42.6% below the postcode norm. 5 planning records sit against the property, 4 approved, 1 refused. Past consents include a loft conversion, an extension and tree works, meaningful when judging how the property has evolved.
Energy performance
14 Nant Y Gwladys's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 04 Mar 2026
EPC Rating
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Planning history
14 Nant Y Gwladys has been through 4 approved planning applications — a well-evolved property.
5 applications on record at 14 Nant Y Gwladys, St Fagans, Cardiff, CF5 6HJ
- Nov 2014ExtensionFullOutcome in report
Extension: Two storey · Side of property
TWO STOREY SIDE EXTENSION AND DETACHED GARAGE
- Documents
- 8 docs on file
- Reference
- 14/02155/DCH
- More recent applications — locked
- Loft ConversionApr 2016Decision
- ExtensionMar 2016Decision
+ 2 more applications in the report
Unlock 14 Nant Y Gwladys, St Fagans, Cardiff, CF5 6HJ's full planning history
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- Every decision — granted, refused or withdrawn (5 on record)
- All 5 applications on this property in full, plus 1 notable nearby
- The 52 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
14 Nant Y Gwladys valuation sits well clear of the typical sold price in this postcode.
£694,000
Modelled from EPC, postcode comparables.
£240,000
Recorded with HM Land Registry.
Sales timeline
9 August 2001Most recent
£240,000
Median price across the last 5 sales in CF5 6HJ: £400,000 (2023–2013).
Nearby sales in CF5 6HJ
6 Nant Y Gwladys, St Fagans, Cardiff, CF5 6HJ
Sold Apr 2023
£425,00010 Nant Y Gwladys, St Fagans, Cardiff, CF5 6HJ
Sold Dec 2021
£480,0008 Nant Y Gwladys, St Fagans, Cardiff, CF5 6HJ
Sold Jan 2018
£400,0005 Nant Y Gwladys, St Fagans, Cardiff, CF5 6HJ
Sold Dec 2013
£339,9502 Nant Y Gwladys, St Fagans, Cardiff, CF5 6HJ
Sold Sept 2001
£250,000
Versus other Nant Y Gwladys homes
On price per m², 14 Nant Y Gwladys runs well behind the street norm.
Price per m²
£1,379
Street avg £3,713
Floor Area
174 m²
Street avg 111 m²
Habitable Rooms
7 rooms
Street avg 7 rooms
CO₂ Emissions
8.7 t/year
Street avg 4.0 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Rhydlafar — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







