19 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
About 19 Clos Cilfwnwr
19 Clos Cilfwnwr is a two-bedroom detached house in Penllergaer, Swansea, Swansea (SA4 9BU). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1967-1975 and council tax band E. The latest certificate (May 2021) shows a D (score 65), on the cusp of jumping into the C band. Earlier certificates rated it C (July 2009); the latest reading is one band lower. Between certificates, wall efficiency dropped from Good to Poor and hot-water efficiency dropped from Very Good to Good. The recommended improvements would lift it to B (score 83), a 2-band jump.
Last sale on file: £335,000 in November 2024. Across the public record there are 4 sales, relatively high churn for a single property. Across 2008–2024, sale prices on this property compounded at 4.9% per year. On a £-per-square-foot basis, the last sale (£346/sq ft) was about 63% above the typical sold price in the postcode. 2 bedrooms is on the smaller side for this postcode, where 4 is the typical count.
What this property has
Inside
- Bedrooms2
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Windows upgraded, improving insulation
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
19 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
19 Clos Cilfwnwr has more than doubled in price since the earliest registered sale in 2008.
£316,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.9% per year over 16 years.
£335,000
Growth on file: 4.9% per year over 16 years.
Sales timeline
8 November 2024Most recent
£335,000
+63.4%over 8 years7 April 2016
£205,000
+7.9%over 6 years18 December 2009
£190,000
+22.6%over 1 year4 September 2008
£155,000
Median price across the last 5 sales in SA4 9BU: £315,000 (2025–2018).
Nearby sales in SA4 9BU
8 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Feb 2025
£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
£305,0002 Clos Cilfwnwr, Penllergaer, Swansea, SA4 9BU
Sold Dec 2018
£240,000
Versus other Clos Cilfwnwr homes
Habitable Rooms for 19 Clos Cilfwnwr lags the street by a wide margin.
Price per m²
£3,722
Street avg £2,781
Floor Area
90 m²
Street avg 97 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
3.6 t/year
Street avg 4.2 t/year
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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.







