15 Gwyn Street, Pontardawe, Swansea, SA8 3AL
About 15 Gwyn Street
15 Gwyn Street is a three-bedroom mid-terrace house in Pontardawe, Swansea, Swansea (SA8 3AL). It has a recorded floor area of 86 m² (around 926 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (April 2014) shows an E (score 44), well below the UK norm with real room to improve. The recommended improvements would lift it to B (score 85), a 3-band jump. The latest certificate is from April 2014, so improvements made since then won't be reflected.
Across 1996–2019, sale prices on this property compounded at 6.8% per year. Today's modelled estimate of £180,000 sits 71.4% above the 2019 sale of £105,000. It lags the bulk of the postcode on energy efficiency (less efficient than 79% of similar EPCs). Sold June 2019 for £105,000.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Outside
- Private gardenYes
- ParkingOff road
Building
- Heating systemGas fired
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 09 Apr 2024
EPC Rating
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
15 Gwyn Street has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Price for 15 Gwyn Street has grown more than fourfold since the 1996 starting point.
£180,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.8% per year over 22 years.
£105,000
Growth on file: 6.8% per year over 22 years.
Sales timeline
6 June 2019Most recent
£105,000
+342.1%over 22 years20 December 1996
£23,750
Median price across the last 5 sales in SA8 3AL: £195,000 (2025–2023).
Nearby sales in SA8 3AL
Allt Y Grug, Gwyn Street, Pontardawe, Swansea, SA8 3AL
Sold Jul 2025
£300,00046 Gwyn Street, Pontardawe, Swansea, SA8 3AL
Sold Nov 2024
£195,0003 Gwyn Street, Pontardawe, Swansea, SA8 3AL
Sold Nov 2024
£235,00057 Gwyn Street, Pontardawe, Swansea, SA8 3AL
Sold Mar 2024
£178,70035 Gwyn Street, Pontardawe, Swansea, SA8 3AL
Sold Jun 2023
£150,000
Versus other Gwyn Street homes
EPC Rating for 15 Gwyn Street lags the street by a wide margin.
Price per m²
£1,221
Street avg £1,615
Floor Area
86 m²
Street avg 95 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
5.9 t/year
Street avg 4.4 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
Gwyn Arms — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







