11 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
About 11 Derwlas
11 Derwlas is a semi-detached house in Penllergaer, Swansea, Swansea (SA4 9SF). It has a recorded floor area of 74 m² (around 797 sq ft), construction records dating it to 1996-2002 and council tax band C. The latest certificate (January 2024) shows a C (score 77), near the top of the C band. The rating has held steady at C across 3 certificates since September 2012. Between certificates, lighting went from Average to Very Good. The recommended improvements would push it to B (score 89).
Across 1997–2024, sale prices on this property compounded at -9.2% per year. Today's modelled estimate of £216,000 sits 4700% above the 2024 sale of £4,500. On a £-per-square-foot basis, the last sale (£6/sq ft) was about 95.9% below the postcode norm. At 74 m² it's 20.8% smaller than the typical home in the postcode (93 m² median across 6 EPCs). Sold May 2024 for £4,500.
Energy performance
EPC Rating
Certificate validity
Valid until 29 January 2034
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Floor insulation added or improved
More low energy lighting installed
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Planning history
11 Derwlas 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
Latest sale on 11 Derwlas was the lowest on Land Registry record across the postcode.
£216,000
Modelled from EPC, postcode comparables and a sale-price growth of -9.2% per year over 27 years.
£4,500
Growth on file: -9.2% per year over 27 years.
Sales timeline
16 May 2024Most recent
£4,500
-96.5%over 11 years14 December 2012
£130,000
2 December 2005
£130,000
+87.1%over 3 years9 May 2002
£69,500
+15.8%over 4 years2 July 1997
£59,995
Median price across the last 5 sales in SA4 9SF: £190,000 (2025–2012).
Nearby sales in SA4 9SF
12 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold May 2025
£190,0003 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold Oct 2021
£240,0001 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold Oct 2019
£189,9954 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold Nov 2017
£228,0002 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold May 2012
£165,000
Versus other Derwlas homes
Price per m² for 11 Derwlas lags the street by a wide margin.
Price per m²
£61
Street avg £1,963
Floor Area
74 m²
Street avg 107 m²
Habitable Rooms
5 rooms
Street avg 6 rooms
CO₂ Emissions
1.8 t/year
Street avg 3.8 t/year
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The neighbourhood at a glance
Crime
160/mo
Falling year-on-year across the wider district.
Nearest stop
0.2 km
Tircoed Terminus — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







