6 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
About 6 Clos Cilfwnwr
6 Clos Cilfwnwr is a detached house in Penllergaer, Swansea, Swansea (SA4 9BU). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1976-1982 and council tax band E. The latest certificate (October 2016) shows an E (score 50), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 84), a 3-band jump.
Across 1999–2017, sale prices on this property compounded at 4.9% per year. Today's modelled estimate of £315,000 sits 59.9% above the 2017 sale of £197,000. It lags the bulk of the postcode on energy efficiency (less efficient than 80% of similar EPCs). On the market in January 2017 and unlisted since — roughly 9 years.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
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Planning history
6 Clos Cilfwnwr has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
6 Clos Cilfwnwr has more than doubled in price since the earliest registered sale in 1999.
£315,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 17 years.
£197,000
Growth on file: 4.9% per year over 17 years.
Sales timeline
12 January 2017Most recent
£197,000
+129.2%over 17 years7 October 1999
£85,950
Median price across the last 5 sales in SA4 9BU: £325,000 (2025–2021).
Nearby sales in SA4 9BU
8 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Feb 2025
£335,00019 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Nov 2024
£335,00021 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Jul 2022
£315,0003 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Jun 2022
£325,00022 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Feb 2021
£305,000
Versus other Clos Cilfwnwr homes
EPC Rating for 6 Clos Cilfwnwr lags the street by a wide margin.
Price per m²
£2,264
Street avg £2,963
Floor Area
87 m²
Street avg 97 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
5.4 t/year
Street avg 4.0 t/year
Similar properties nearby
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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
Clos Cilfwnwr — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







