18 Bryn Helyg, Winch Wen, Swansea, SA1 7LP
About 18 Bryn Helyg
18 Bryn Helyg is a three-bedroom semi-detached house in Winch Wen, Swansea, Swansea (SA1 7LP). It has a recorded floor area of 110 m² (around 1184 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (September 2024) shows a C (score 70). When first surveyed in January 2015 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Average, window efficiency went from Average to Good and hot-water efficiency went from Poor to Good. The recommended improvements would push it to B (score 82).
It changed hands recently, sold May 2025 for £200,000. Across the public record there are 4 sales, relatively high churn for a single property. At 110 m² it's 27.9% larger than the typical home in the postcode (86 m² median across 7 EPCs). Across 2011–2025, sale prices on this property compounded at 7.7% per year.
What this property has
Inside
- Bedrooms3
- Bathrooms1
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
Cavity wall insulation installed
More low energy lighting installed
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Planning history
18 Bryn Helyg has no planning applications on record.
But the area is active
3 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Latest sale on 18 Bryn Helyg was the highest on Land Registry record across the postcode.
£212,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.7% per year over 14 years.
£200,000
Growth on file: 7.7% per year over 14 years.
Sales timeline
15 May 2025Most recent
£200,000
+53.8%over 10 years14 May 2015
£130,000
-59.1%14 May 2015
£317,500
+353.6%over 4 years16 March 2011
£70,000
Median price across the last 5 sales in SA1 7LP: £140,000 (2025–2007).
Nearby sales in SA1 7LP
7 Bryn Helyg, Winch Wen, Swansea, SA1 7LP
Sold Jul 2025
£196,0002 Bryn Helyg, Winch Wen, Swansea, SA1 7LP
Sold Sept 2023
£153,00010 Bryn Helyg, Winch Wen, Swansea, SA1 7LP
Sold Sept 2019
£120,0005 Bryn Helyg, Winch Wen, Swansea, SA1 7LP
Sold Sept 2007
£140,0001 Bryn Helyg, Winch Wen, Swansea, SA1 7LP
Sold Jan 2005
£79,950
Versus other Bryn Helyg homes
On floor area, 18 Bryn Helyg stands well clear of the street.
Price per m²
£1,818
Street avg £1,648
Floor Area
110 m²
Street avg 88 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
3.3 t/year
Street avg 2.8 t/year
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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
Wyngarth — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







