21 Bryn Derwen, Sketty, Swansea, SA2 9GX
About 21 Bryn Derwen
21 Bryn Derwen is a two-bedroom semi-detached house in Sketty, Swansea, Swansea (SA2 9GX). It has a recorded floor area of 72 m² (around 775 sq ft), construction records dating it to 1991-1995 and council tax band D. The latest certificate (April 2021) shows a C (score 71). When first surveyed in July 2009 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Average to Good, lighting went from Very Poor to Very Good and main heating went from Average to Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 85).
Untraded for 24 years, with the last transfer in December 2001. Today's modelled estimate of £207,000 sits 177.9% above the 2001 sale of £74,500. On a £-per-square-foot basis, the last sale (£96/sq ft) was about 49.9% below the postcode norm.
What this property has
Inside
- Bedrooms2
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency improved
More low energy lighting installed
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Planning history
21 Bryn Derwen has no planning applications on record.
But the area is active
2 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
£207,000
Modelled from EPC, postcode comparables.
£74,500
Recorded with HM Land Registry.
Sales timeline
17 December 2001Most recent
£74,500
Median price across the last 5 sales in SA2 9GX: £233,000 (2025–2023).
Nearby sales in SA2 9GX
29 Bryn Derwen, Sketty, Swansea, SA2 9GX
Sold Aug 2025
£365,0008 Bryn Derwen, Sketty, Swansea, SA2 9GX
Sold Aug 2025
£227,00087 Bryn Derwen, Sketty, Swansea, SA2 9GX
Sold May 2024
£233,00081 Bryn Derwen, Sketty, Swansea, SA2 9GX
Sold Mar 2024
£220,00053 Bryn Derwen, Sketty, Swansea, SA2 9GX
Sold Nov 2023
£335,000
Versus other Bryn Derwen homes
On years held, 21 Bryn Derwen stands well clear of the street.
Price per m²
£1,035
Street avg £2,124
Floor Area
72 m²
Street avg 98 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
2.6 t/year
Street avg 2.0 t/year
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The neighbourhood at a glance
Reported crime in the wider district is trending notably upward year-on-year.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Llwyn Mawr Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







