17 Golwg Y Garn, Penllergaer, Swansea, SA4 9DE
About 17 Golwg Y Garn
17 Golwg Y Garn is a semi-detached house in Penllergaer, Swansea, Swansea (SA4 9DE). It has a recorded floor area of 71 m² (around 764 sq ft), construction records dating it to 2012 onwards and council tax band C. The latest certificate (September 2021) shows a C (score 74). The rating has held steady at C across 2 certificates since December 2008. Between certificates, wall efficiency went from Good to Very Good and lighting went from Average to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to B (score 87).
Today's modelled estimate of £201,000 sits 57% above the 2015 sale of £128,000. 11 years since the last transfer (April 2015). Across the public record there are 4 sales, relatively high churn for a single property.
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
Wall insulation improved
More low energy lighting installed
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Planning history
17 Golwg Y Garn 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
17 Golwg Y Garn saw 4 transfers in just over a decade — high turnover for the postcode.
£201,000
Modelled from EPC, postcode comparables and a sale-price growth of -0.2% per year over 8 years.
£128,000
Growth on file: -0.2% per year over 8 years.
Sales timeline
9 April 2015Most recent
£128,000
-1.5%9 April 2015
£130,000
+8.3%over 5 years21 May 2009
£120,000
-7.7%over 2 years17 January 2007
£129,995
Median price across the last 5 sales in SA4 9DE: £237,000 (2025–2023).
Nearby sales in SA4 9DE
11 Golwg Y Garn, Penllergaer, Swansea, SA4 9DE
Sold Oct 2025
£255,50012 Golwg Y Garn, Penllergaer, Swansea, SA4 9DE
Sold Jun 2025
£183,00016 Golwg Y Garn, Penllergaer, Swansea, SA4 9DE
Sold Dec 2024
£280,0002 Golwg Y Garn, Penllergaer, Swansea, SA4 9DE
Sold Mar 2024
£237,00023 Golwg Y Garn, Penllergaer, Swansea, SA4 9DE
Sold Jan 2023
£205,000
Versus other Golwg Y Garn homes
Floor Area for 17 Golwg Y Garn lags the street by a wide margin.
Price per m²
£1,831
Street avg £2,105
Floor Area
71 m²
Street avg 82 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
1.9 t/year
Street avg 2.2 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Morgan Close — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







