20 Derw Road, Pontardawe, Swansea, SA8 4AN
About 20 Derw Road
20 Derw Road is a semi-detached house in Pontardawe, Swansea, Swansea (SA8 4AN). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to before 1900 and council tax band C. The latest certificate (May 2020) shows an E (score 51), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since February 2010. Between certificates, roof efficiency went from Very Poor to Average, window efficiency went from Very Poor to Good and hot-water efficiency went from Average to Good. The recommended improvements would lift it to B (score 82), a 3-band jump.
At 86 m² it's 16.5% smaller than the typical home in the postcode (103 m² median across 9 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 78% of similar EPCs). Today's modelled estimate of £164,000 is 26.2% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£140/sq ft) was about 60.2% above the typical sold price in the postcode. Last sale on file: £130,000 in July 2020.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water efficiency improved
Single glazing replaced with double or better glazing
Roof insulation improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property was built before 1919, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
20 Derw Road has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£164,000
Modelled from EPC, postcode comparables.
£130,000
Recorded with HM Land Registry.
Sales timeline
30 July 2020Most recent
£130,000
Median price across the last 5 sales in SA8 4AN: £135,000 (2024–2011).
Nearby sales in SA8 4AN
1 Derw Road, Pontardawe, Swansea, SA8 4AN
Sold Mar 2024
£180,00011 Derw Road, Pontardawe, Swansea, SA8 4AN
Sold Jan 2020
£180,0002 Derw Road, Pontardawe, Swansea, SA8 4AN
Sold Oct 2018
£135,00019 Derw Road, Pontardawe, Swansea, SA8 4AN
Sold Aug 2013
£48,0004 Derw Road, Pontardawe, Swansea, SA8 4AN
Sold Sept 2011
£110,000
Versus other Derw Road homes
EPC Rating for 20 Derw Road lags the street by a wide margin.
Price per m²
£1,512
Street avg £1,154
Floor Area
86 m²
Street avg 107 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
5.1 t/year
Street avg 5.9 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
Craig Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







