39 Heol Gwys, Upper Cwmtwrch, Swansea, SA9 2XQ
About 39 Heol Gwys
39 Heol Gwys is a semi-detached house in Upper Cwmtwrch, Swansea, Swansea (SA9 2XQ). It has a recorded floor area of 105 m² (around 1130 sq ft), construction records dating it to before 1900 and council tax band B. The latest certificate (May 2021) shows an F (score 24), near the bottom of the EPC scale. The rating has held steady at F across 4 certificates since October 2013. Between certificates, roof efficiency dropped from Average to Poor and lighting dropped from Good to Average. The recommended improvements would lift it to B (score 82), a 4-band jump. Main heating runs on smokeless coal.
At 105 m² it's 20.7% larger than the typical home in the postcode (87 m² median across 15 EPCs). It lags the bulk of the postcode on energy efficiency (less efficient than 87% of similar EPCs).
Know exactly what you're buying at 39 Heol Gwys
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
39 Heol Gwys's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Roof insulation improved
Single glazing replaced with double or better glazing
Low energy lighting percentage decreased
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Planning history
39 Heol Gwys has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
39 Heol Gwys has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£140,000
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 SA9 2XQ: £100,000 (2025–2021).
Nearby sales in SA9 2XQ
38 Heol Gwys, Upper Cwmtwrch, Swansea, SA9 2XQ
Sold Apr 2025
£1,00044 Heol Gwys, Upper Cwmtwrch, Swansea, SA9 2XQ
Sold Jan 2025
£121,00067 Heol Gwys, Upper Cwmtwrch, Swansea, SA9 2XQ
Sold May 2024
£135,00016 Heol Gwys, Upper Cwmtwrch, Swansea, SA9 2XQ
Sold Jan 2024
£100,00040 Heol Gwys, Upper Cwmtwrch, Swansea, SA9 2XQ
Sold Nov 2021
£76,000
Everything we know about 39 Heol Gwys, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
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- Will it hold its value?

Versus other Heol Gwys homes
On co₂ emissions, 39 Heol Gwys runs well behind the street norm.
EPC Rating
24 (F)
Street avg 48 (E)
Floor Area
105 m²
Street avg 88 m²
CO₂ Emissions
19.0 t/year
Street avg 5.9 t/year
Habitable Rooms
4 rooms
Street avg 5 rooms
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Cwmtwrch Rugby Club — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.