37a, West Street, Gorseinon, Swansea, SA4 4AA
About 37a
37a is a semi-detached house in Gorseinon, Swansea, Swansea (SA4 4AA). It has a recorded floor area of 65 m² (around 700 sq ft) and construction records dating it to 2022. The latest certificate (September 2024) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in April 2024 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Very Good and window efficiency went from Good to Very Good. Main heating runs on electricity: electricity, unspecified tariff. At 65 m² this is the 21st smallest of 38 units on EPC record in the building, where floor areas span 30–142 m². The building's EPC ratings span G to C across 38 units on file.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
High performance glazing installed
Cavity wall insulation installed
Floor insulation added or improved
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Planning history
37a has no planning applications on record.
But the area is active
1 notable application nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
37a has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£153,000
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 SA4 4AA: £143,000 (2025–2021).
Nearby sales in SA4 4AA
36 West Street, Gorseinon, Swansea, SA4 4AA
Sold Sept 2025
£225,0008a, West Street, Gorseinon, Swansea, SA4 4AA
Sold Nov 2023
£120,00037 West Street, Gorseinon, Swansea, SA4 4AA
Sold Apr 2022
£125,0006 West Street, Gorseinon, Swansea, SA4 4AA
Sold Jan 2022
£220,00030 West Street, Gorseinon, Swansea, SA4 4AA
Sold Aug 2021
£143,000
Versus other West Street homes
37a is notably below the street on epc rating.
EPC Rating
63 (D)
Street avg 71 (C)
Floor Area
65 m²
Street avg 54 m²
CO₂ Emissions
2.3 t/year
Street avg 1.9 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Gorseinon Bus Station Stand 1 — bus station.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







