6 Gwili Terrace, Mayhill, Swansea, SA1 6TW
About 6 Gwili Terrace
6 Gwili Terrace is a mid-terrace house in Mayhill, Swansea, Swansea (SA1 6TW). It has a recorded floor area of 80 m² (around 861 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (August 2024) shows an E (score 41), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 69), a 2-band jump. Main heating runs on house coal.
It lags the bulk of the postcode on energy efficiency (less efficient than 85% of similar EPCs).
Everything you need to know about 6 Gwili Terrace
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
6 Gwili Terrace's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
6 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
6 Gwili Terrace has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£111,000
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
EPC Rating for 6 Gwili Terrace lags the street by a wide margin.
EPC Rating
41 (E)
Street avg 64 (D)
Floor Area
80 m²
Street avg 76 m²
CO₂ Emissions
11.0 t/year
Street avg 3.2 t/year
Habitable Rooms
4 rooms
Street avg 4 rooms
Everything you need to know about 6 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.






