37 Gelliderw, Pontardawe, Swansea, SA8 4NB
About 37 Gelliderw
37 Gelliderw is a three-bedroom semi-detached house in Pontardawe, Swansea, Swansea (SA8 4NB). It has a recorded floor area of 87 m² (around 936 sq ft), construction records dating it to 1950-1966 and council tax band B. The latest certificate (August 2022) shows an E (score 54), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since July 2009. Between certificates, roof efficiency went from Very Poor to Poor and lighting went from Poor to Very Good. The recommended improvements would lift it to C (score 80), a 2-band jump.
At 87 m² the property is well over the postcode median (62 m² across 39 EPCs), placing it in the larger end of the local stock. On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement. Across 1997–2024, sale prices on this property compounded at 5% per year. Today's modelled estimate of £148,000 sits 78.3% above the 2024 sale of £83,000. Sold January 2024 for £83,000.
What this property has
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
Outside
- Private gardenFront and rear
Building
- Heating systemGas
Energy performance
37 Gelliderw sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Windows upgraded, improving insulation
Roof insulation improved
More low energy lighting installed
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Planning history
37 Gelliderw 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
Sale price has grown by over 3x since 1997.
£148,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.0% per year over 26 years.
£83,000
Growth on file: 5.0% per year over 26 years.
Sales timeline
22 January 2024Most recent
£83,000
+260.9%over 26 years4 September 1997
£23,000
Median price across the last 5 sales in SA8 4NB: £145,000 (2025–2022).
Nearby sales in SA8 4NB
33 Gelliderw, Pontardawe, Swansea, SA8 4NB
Sold Jul 2025
£145,0008 Gelliderw, Pontardawe, Swansea, SA8 4NB
Sold Oct 2024
£150,00018 Gelliderw, Pontardawe, Swansea, SA8 4NB
Sold Jun 2024
£150,00019 Gelliderw, Pontardawe, Swansea, SA8 4NB
Sold Jun 2023
£102,00036 Gelliderw, Pontardawe, Swansea, SA8 4NB
Sold Jun 2022
£108,000
Versus other Gelliderw homes
On co₂ emissions, 37 Gelliderw runs well behind the street norm.
Price per m²
£954
Street avg £1,388
Floor Area
87 m²
Street avg 81 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
5.3 t/year
Street avg 3.3 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
Cefn Llan Stores — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







