19 Gelliderw, Pontardawe, Swansea, SA8 4NB
About 19 Gelliderw
19 Gelliderw is a semi-detached house in Pontardawe, Swansea, Swansea (SA8 4NB). It has a recorded floor area of 83 m² (around 893 sq ft), construction records dating it to 1967-1975 and council tax band B. The latest certificate (April 2024) shows a D (score 66), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since November 2022. Between certificates, roof efficiency went from Average to Very Good and window efficiency went from Average to Good. The recommended improvements would lift it to B (score 84), a 2-band jump.
At 83 m² the property is well over the postcode median (62 m² across 39 EPCs), placing it in the larger end of the local stock. It lags the bulk of the postcode on energy efficiency (less efficient than 77% of similar EPCs). Across 2003–2023, sale prices on this property compounded at 5.8% per year. Today's modelled estimate of £140,000 is 37.3% above the 2023 sale price. On a £-per-square-foot basis, the last sale (£114/sq ft) was about 29.6% above the typical sold price in the postcode. Sold June 2023 for £102,000.
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 upgraded for better temperature management
Window efficiency improved
Loft insulation upgraded to recommended levels
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Planning history
19 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 2003.
£140,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.8% per year over 20 years.
£102,000
Growth on file: 5.8% per year over 20 years.
Sales timeline
25 June 2023Most recent
£102,000
+218.8%over 20 years20 January 2003
£32,000
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
£150,00037 Gelliderw, Pontardawe, Swansea, SA8 4NB
Sold Jan 2024
£83,00036 Gelliderw, Pontardawe, Swansea, SA8 4NB
Sold Jun 2022
£108,000
Versus other Gelliderw homes
Habitable Rooms for 19 Gelliderw lags the street by a wide margin.
Price per m²
£1,229
Street avg £1,348
Floor Area
83 m²
Street avg 82 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
3.6 t/year
Street avg 3.4 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.







