31 Gwili Terrace, Mayhill, Swansea, SA1 6TW
About 31 Gwili Terrace
31 Gwili Terrace is a mid-terrace house in Mayhill, Swansea, Swansea (SA1 6TW). It has a recorded floor area of 96 m² (around 1033 sq ft), construction records dating it to 1930-1949 and council tax band A. The latest certificate (June 2013) shows a D (score 57), a step below the typical UK home. The recommended improvements would lift it to B (score 86), a 2-band jump. The latest certificate is from June 2013, so improvements made since then won't be reflected.
At 96 m² the property is well over the postcode median (72 m² across 27 EPCs), placing it in the larger end of the local stock. Across 2015–2021, sale prices on this property compounded at 2.2% per year. Today's modelled estimate of £135,000 is 37.8% above the 2021 sale price. Last sale on file: £98,000 in March 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Everything you need to know about 31 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This certificate is over 10 years old and is no longer valid.Expired 18 Jun 2023
EPC Rating
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Planning history
31 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
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£135,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.2% per year over 6 years.
£98,000
Growth on file: 2.2% per year over 6 years.
Sales timeline
12 March 2021Most recent
£98,000
+12.6%over 5 years25 August 2015
£87,000
Median price across the last 5 sales in SA1 6TW: £120,000 (2025–2019).
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
£105,00019 Gwili Terrace, Mayhill, Swansea, SA1 6TW
Sold Sept 2019
£83,000
Versus other Gwili Terrace homes
Floor Area for 31 Gwili Terrace runs comfortably ahead of the street norm.
Price per m²
£1,021
Street avg £1,085
Floor Area
96 m²
Street avg 76 m²
Habitable Rooms
5 rooms
Street avg 4 rooms
CO₂ Emissions
4.7 t/year
Street avg 3.4 t/year
Everything you need to know about 31 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.






