1 Llanyrnewydd, Penclawdd, Swansea, SA4 3JN
About 1 Llanyrnewydd
1 Llanyrnewydd is a semi-detached house in Penclawdd, Swansea, Swansea (SA4 3JN). It has a recorded floor area of 107 m² (around 1152 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (April 2025) shows a D (score 62), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since August 2009. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Poor; while wall efficiency dropped from Good to Poor. The recommended improvements would lift it to B (score 81), a 2-band jump.
One planning record on file: an extension approved in 2013. Past consents include an extension, meaningful when judging how the property has evolved. At 107 m² it's 20.9% larger than the typical home in the postcode (89 m² median across 12 EPCs).
Everything you need to know about 1 Llanyrnewydd
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Window efficiency improved
Loft insulation upgraded to recommended levels
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 £820 · Includes VAT
Planning history
1 Llanyrnewydd has an approved single-storey rear extension on the planning record.
1 application on record at 1 Llanyrnewydd, Penclawdd, Swansea, SA4 3JN
- Oct 2013ExtensionFullOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension
- Documents
- 8 docs on file
- Reference
- 2013/1290
Unlock 1 Llanyrnewydd, Penclawdd, Swansea, SA4 3JN's full planning history
You're seeing the shape of it. The report has the substance.
- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 5 notable nearby
- The 8 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
1 Llanyrnewydd has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£178,000
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.
Versus other Llanyrnewydd homes
On floor area, 1 Llanyrnewydd stands well clear of the street.
EPC Rating
62 (D)
Street avg 62 (D)
Floor Area
107 m²
Street avg 90 m²
CO₂ Emissions
4.6 t/year
Street avg 4.0 t/year
Habitable Rooms
5 rooms
Street avg 5 rooms
Everything you need to know about 1 Llanyrnewydd
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Caban Isaac Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






