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 1997–2012, sale prices on this property compounded at 5.1% per year. Today's modelled estimate of £213,000 sits 63.8% above the 2012 sale of £130,000. On a £-per-square-foot basis, the last sale (£163/sq ft) was about 18.1% above the typical sold price in the postcode. On the market in December 2012 and unlisted since — roughly 13 years. Across the public record there are 4 sales, relatively high churn for a single property. At 74 m² it's 20.8% smaller than the typical home in the postcode (93 m² median across 6 EPCs).
Energy performance
EPC Rating
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
11 Derwlas has more than doubled in price since the earliest registered sale in 1997.
£213,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.1% per year over 15 years.
£130,000
Growth on file: 5.1% per year over 15 years.
Sales timeline
14 December 2012Most recent
£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
EPC Rating for 11 Derwlas runs comfortably ahead of the street norm.
Price per m²
£1,757
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
2/mo
Steady 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.







