Model valuation£417,0008 Busby Close
Local market context
4 Derwlas is a detached house in Penllergaer, Swansea, Swansea (SA4 9SF). It has a recorded floor area of 121 m² (around 1302 sq ft), construction records dating it to 1996-2002 and council tax band E. The latest certificate (February 2025) shows a C (score 71). The recommended improvements would push it to B (score 84).
At 121 m² the property is well over the postcode median (89 m² across 6 EPCs), placing it in the larger end of the local stock. On the market in November 2017 and unlisted since — roughly 9 years. Across the public record there are 5 sales, relatively high churn for a single property. Across 1997–2017, sale prices on this property compounded at 4.4% per year. Today's modelled estimate of £325,000 is 42.5% above the 2017 sale price. On a £-per-square-foot basis, the last sale (£175/sq ft) was about 87.4% above the typical sold price in the postcode.
Certificate validity
Valid until 9 February 2035
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4 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.
4 Derwlas has more than doubled in price since the earliest registered sale in 1997.
£325,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.4% per year over 20 years.
£228,000
Growth on file: 4.4% per year over 20 years.
13 November 2017Most recent
£228,000
+26.7%over 8 years29 April 2009
£180,000
20 October 2005
£179,950
-4.0%1 August 2005
£187,500
+98.4%over 8 years15 May 1997
£94,500
Median price across the last 5 sales in SA4 9SF: £189,995 (2025–2012).
12 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold May 2025
11 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold May 2024
3 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold Oct 2021
1 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold Oct 2019
2 Derwlas, Tircoed Forest Village, Penllergaer, Swansea, SA4 9SF
Sold May 2012
EPC Rating for 4 Derwlas runs comfortably ahead of the street norm.
Price per m²
£1,884
Street avg £1,659
Floor Area
121 m²
Street avg 99 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
3.7 t/year
Street avg 3.5 t/year
Property research, connected
Explore sale histories, valuations, energy ratings and local areas. Ask the assistant to connect the details and take your research further.
Start your researchSA4 9JL
SA4 9BU
SA4 9BX
SA4 9BZ
SA4 9QL
SA4 9HP
SA4 9ED
SA4 9SF
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.