1 Gwili Terrace, Mayhill, Swansea, SA1 6TW
About 1 Gwili Terrace
1 Gwili Terrace is a semi-detached house in Mayhill, Swansea, Swansea (SA1 6TW). It has a recorded floor area of 73 m² (around 786 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (January 2014) shows an E (score 42), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 75), a 2-band jump. The latest certificate is from January 2014, so improvements made since then won't be reflected.
It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs).
Everything you need to know about 1 Gwili Terrace
The true value, the hidden risks and the full sale history, in one report.
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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This certificate is over 10 years old and is no longer valid.Expired 10 Jan 2024
EPC Rating
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Planning history
1 Gwili Terrace has no planning applications on record.
But the area is active
64 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
1 Gwili Terrace has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£118,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SA1 6TW: £120,000 (2025–2021).
Nearby sales in SA1 6TW
29 Gwili Terrace, Mayhill, Swansea, SA1 6TW
Sold Aug 2025
£135,00030 Gwili Terrace, Mayhill, Swansea, SA1 6TW
Sold Apr 2025
£125,00025 Gwili Terrace, Mayhill, Swansea, SA1 6TW
Sold Nov 2024
£120,0002 Gwili Terrace, Mayhill, Swansea, SA1 6TW
Sold Mar 2021
£105,00031 Gwili Terrace, Mayhill, Swansea, SA1 6TW
Sold Mar 2021
£98,000
Versus other Gwili Terrace homes
On epc rating, 1 Gwili Terrace runs well behind the street norm.
EPC Rating
42 (E)
Street avg 64 (D)
Floor Area
73 m²
Street avg 76 m²
CO₂ Emissions
5.6 t/year
Street avg 3.4 t/year
Habitable Rooms
3 rooms
Street avg 4 rooms
Everything you need to know about 1 Gwili Terrace
The true value, the hidden risks and the full sale history, in one report.
Pick your report · every report is £14.99
One time fee only - money back guarantee

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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Gors Avenue — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.






