1 Clos Pengelli, Grovesend, Swansea, SA4 4JW
About 1 Clos Pengelli
1 Clos Pengelli is a semi-detached house in Grovesend, Swansea, Swansea (SA4 4JW). It has a recorded floor area of 49 m² (around 527 sq ft), construction records dating it to 1983-1990 and council tax band B. The latest certificate (April 2025) shows a C (score 72). When first surveyed in April 2013 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Good and lighting went from Average to Very Good. The recommended improvements would push it to B (score 90).
On energy efficiency it sits in the top 10% of properties in this postcode. Across 2001–2015, sale prices on this property compounded at 5.5% per year. Today's modelled estimate of £149,000 sits 81.7% above the 2015 sale of £82,000. Last sold in May 2015, so it's been off the market for around 11 years.
Energy performance
1 Clos Pengelli ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Certificate validity
Valid until 22 April 2035
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
Heating controls upgraded for better temperature management
More low energy lighting installed
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Planning history
1 Clos Pengelli 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
1 Clos Pengelli has more than doubled in price since the earliest registered sale in 2001.
£149,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 13 years.
£82,000
Growth on file: 5.5% per year over 13 years.
Sales timeline
21 May 2015Most recent
£82,000
-18.0%over 9 years20 April 2006
£100,000
+150.0%over 4 years14 December 2001
£40,000
Median price across the last 5 sales in SA4 4JW: £145,000 (2025–2022).
Nearby sales in SA4 4JW
10 Clos Pengelli, Grovesend, Swansea, SA4 4JW
Sold Jul 2025
£150,00018 Clos Pengelli, Grovesend, Swansea, SA4 4JW
Sold Dec 2023
£161,0002 Clos Pengelli, Grovesend, Swansea, SA4 4JW
Sold Nov 2023
£139,5008 Clos Pengelli, Grovesend, Swansea, SA4 4JW
Sold Jun 2023
£145,0005 Clos Pengelli, Grovesend, Swansea, SA4 4JW
Sold Dec 2022
£130,000
Versus other Clos Pengelli homes
1 Clos Pengelli outperforms the street on epc rating by a wide margin.
Price per m²
£1,673
Street avg £2,058
Floor Area
49 m²
Street avg 55 m²
Habitable Rooms
3 rooms
Street avg 4 rooms
CO₂ Emissions
1.7 t/year
Street avg 2.6 t/year
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The neighbourhood at a glance
Crime
160/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Station Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







