14 Gwili Terrace, Mayhill, Swansea, SA1 6TW
About 14 Gwili Terrace
14 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 (May 2013) shows a C (score 70). When first surveyed in July 2009 the rating was E, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Poor to Good and main heating went from Average to Good; while window efficiency dropped from Good to Average and lighting dropped from Good to Poor. The recommended improvements would push it to B (score 86). The latest certificate is from May 2013, so improvements made since then won't be reflected.
Everything you need to know about 14 Gwili Terrace
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
14 Gwili Terrace's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 05 May 2023
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Low energy lighting percentage decreased
Get a survey for this property
Level 3 Building Survey
Because the property has solid (non-cavity) walls, we believe a Level 3 building survey should be considered.
From £820 · Includes VAT
Planning history
14 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
14 Gwili Terrace has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£124,000
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
70 (C)
Street avg 63 (D)
Floor Area
73 m²
Street avg 76 m²
CO₂ Emissions
2.4 t/year
Street avg 3.5 t/year
Habitable Rooms
4 rooms
Street avg 4 rooms
Everything you need to know about 14 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.






