1 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
About 1 Derwlas
1 Derwlas is a detached house in Penllergaer, Swansea, Swansea (SA4 9SF). It has a recorded floor area of 93 m² (around 1000 sq ft), construction records dating it to 1996-2002 and council tax band D. The latest certificate (November 2011) shows a D (score 64), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 69). The latest certificate is from November 2011, so improvements made since then won't be reflected.
Across 1997–2019, sale prices on this property compounded at 4.5% per year. Today's modelled estimate of £265,000 is 39.5% above the 2019 sale price. On a £-per-square-foot basis, the last sale (£190/sq ft) was about 63.7% above the typical sold price in the postcode. Most recent transfer: October 2019 at £189,995.
Energy performance
1 Derwlas's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 28 Nov 2021
EPC Rating
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Planning history
1 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
Sale price has at least doubled since 1997.
£265,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.5% per year over 22 years.
£189,995
Growth on file: 4.5% per year over 22 years.
Sales timeline
17 October 2019Most recent
£189,995
+20.3%over 7 years29 May 2012
£158,000
+125.7%over 15 years1 May 1997
£69,995
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
£240,0004 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold Nov 2017
£228,00011 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold Dec 2012
£130,0002 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold May 2012
£165,000
Versus other Derwlas homes
On epc rating, 1 Derwlas runs well behind the street norm.
Price per m²
£2,045
Street avg £1,915
Floor Area
93 m²
Street avg 104 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.8 t/year
Street avg 3.5 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.







