20 Llysgwyn, Llangyfelach, Swansea, SA6 6BJ
About 20 Llysgwyn
20 Llysgwyn is a detached house in Llangyfelach, Swansea, Swansea (SA6 6BJ). It has a recorded floor area of 23 m² (around 248 sq ft) and construction records dating it to 1983-1990. At 23 m² this is the smallest unit on EPC record across the building (23–72 m²). The building's EPC ratings span F to C, with this unit at the top. The latest certificate (March 2019) shows a C (score 70). The rating has held steady at C across 2 certificates since November 2018. Between certificates, main heating went from Very Poor to Average; while roof efficiency dropped from Good to Average. Main heating runs on electricity.
Held since July 2002 — that's 24 years off the open market, well above the local norm. Today's modelled estimate of £133,000 sits 1008.3% above the 2002 sale of £12,000. On a £-per-square-foot basis, the last sale (£48/sq ft) was about 65.7% below the postcode norm. At 23 m² it sits well below the postcode median (48 m² across 31 EPCs), making it one of the more compact homes locally.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating system upgraded to a more efficient system
Heating controls changed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
20 Llysgwyn has no planning applications on record.
But the area is active
5 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
20 Llysgwyn's modelled value sits at over four times its earliest registered sale price (2002).
£133,000
Modelled from EPC, postcode comparables.
£12,000
Recorded with HM Land Registry.
Sales timeline
10 July 2002Most recent
£12,000
Median price across the last 5 sales in SA6 6BJ: £125,000 (2025–2022).
Nearby sales in SA6 6BJ
2 Llysgwyn, Llangyfelach, Swansea, SA6 6BJ
Sold Jan 2025
£136,00046 Llysgwyn, Llangyfelach, Swansea, SA6 6BJ
Sold Sept 2024
£130,0007 Llysgwyn, Llangyfelach, Swansea, SA6 6BJ
Sold Oct 2023
£120,00036 Llysgwyn, Llangyfelach, Swansea, SA6 6BJ
Sold Apr 2023
£125,00033 Llysgwyn, Llangyfelach, Swansea, SA6 6BJ
Sold Dec 2022
£47,500
Versus other Llysgwyn homes
Floor Area for 20 Llysgwyn lags the street by a wide margin.
Price per m²
£522
Street avg £1,328
Floor Area
23 m²
Street avg 24 m²
Habitable Rooms
1 rooms
Street avg 1 rooms
CO₂ Emissions
1.6 t/year
Street avg 1.7 t/year
Similar properties nearby
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1 Bryn Rhosyn, Llangyfelach
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1 Bro Dawel, Llangyfelach
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1 Clos Cadno, Cwmrhydyceirw
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1 Bryn Glas, Llangyfelach
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1 Clos Waun Wen, Llangyfelach
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1 Cae Crug, Llangyfelach
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1 Can Yr Aderyn, Morriston
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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
The Close — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







