20 Lan Deri, Winch Wen, Swansea, SA1 7LS
About 20 Lan Deri
20 Lan Deri is a semi-detached house in Winch Wen, Swansea, Swansea (SA1 7LS). It has a recorded floor area of 67 m² (around 721 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (September 2018) shows an E (score 51), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 84), a 3-band jump.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Today's modelled estimate of £174,000 sits 54% above the 2018 sale of £113,000. Sold December 2018 for £113,000. One historical planning record sits against the property in 2021.
Energy performance
20 Lan Deri sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
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Planning history
1 application on record at 20 Lan Deri, Winch Wen, Swansea, SA1 7LS
- Dec 2021ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension (application for a Certificate of Proposed Lawful Development)
- Documents
- 11 docs on file
- Reference
- 2021/3267/PLD
Unlock 20 Lan Deri, Winch Wen, Swansea, SA1 7LS's full planning history
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- Every decision — granted, refused or withdrawn
- All 1 application on this property in full, plus 3 notable nearby
- The 11 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
20 Lan Deri valuation sits well clear of the typical sold price in this postcode.
£174,000
Modelled from EPC, postcode comparables.
£113,000
Recorded with HM Land Registry.
Sales timeline
14 December 2018Most recent
£113,000
Median price across the last 5 sales in SA1 7LS: £155,000 (2025–2021).
Nearby sales in SA1 7LS
16 Lan Deri, Winch Wen, Swansea, SA1 7LS
Sold Aug 2025
£157,00026 Lan Deri, Winch Wen, Swansea, SA1 7LS
Sold Nov 2022
£180,0003 Lan Deri, Winch Wen, Swansea, SA1 7LS
Sold Feb 2022
£155,00022 Lan Deri, Winch Wen, Swansea, SA1 7LS
Sold Nov 2021
£125,00017 Lan Deri, Winch Wen, Swansea, SA1 7LS
Sold Jan 2021
£110,000
Versus other Lan Deri homes
EPC Rating for 20 Lan Deri lags the street by a wide margin.
Price per m²
£1,687
Street avg £1,551
Floor Area
67 m²
Street avg 72 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
4.2 t/year
Street avg 3.3 t/year
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Colwyn Avenue Middle — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







