21 Ael Y Bryn, Penclawdd, Swansea, SA4 3LF
About 21 Ael Y Bryn
21 Ael Y Bryn is a four-bedroom detached house in Penclawdd, Swansea, Swansea (SA4 3LF). It has a recorded floor area of 108 m² (around 1163 sq ft), construction records dating it to 1967-1975 and council tax band C. The latest certificate (October 2020) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2009. Between certificates, roof efficiency went from Average to Good and lighting went from Very Poor to Good; while wall efficiency dropped from Good to Average. The recommended improvements would push it to C (score 79). Other recorded features include notable views.
Today's modelled estimate of £296,000 is 27% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£200/sq ft) was about 42.4% above the typical sold price in the postcode. Sold July 2021 for £233,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
What this property has
Inside
- Bedrooms4
- Bathrooms1
Outside
- Private gardenYes
- DrivewayYes
- Notable viewsYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Certificate validity
Valid until 26 October 2030
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Roof insulation improved
More low energy lighting installed
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Planning history
21 Ael Y Bryn has no planning applications on record.
But the area is active
4 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£296,000
Modelled from EPC, postcode comparables.
£233,000
Recorded with HM Land Registry.
Sales timeline
29 July 2021Most recent
£233,000
Median price across the last 5 sales in SA4 3LF: £217,000 (2025–2016).
Nearby sales in SA4 3LF
27 Ael Y Bryn, Penclawdd, Swansea, SA4 3LF
Sold Oct 2025
£260,00012 Ael Y Bryn, Penclawdd, Swansea, SA4 3LF
Sold Mar 2025
£267,50018 Ael Y Bryn, Penclawdd, Swansea, SA4 3LF
Sold Jan 2021
£217,0004 Ael Y Bryn, Penclawdd, Swansea, SA4 3LF
Sold May 2019
£175,00023 Ael Y Bryn, Penclawdd, Swansea, SA4 3LF
Sold Nov 2016
£176,500
Versus other Ael Y Bryn homes
21 Ael Y Bryn outperforms the street on habitable rooms by a wide margin.
Price per m²
£2,157
Street avg £2,001
Floor Area
108 m²
Street avg 104 m²
Habitable Rooms
6 rooms
Street avg 5 rooms
CO₂ Emissions
4.0 t/year
Street avg 4.5 t/year
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The neighbourhood at a glance
Crime
160/mo
Falling year-on-year across the wider district.
Nearest stop
0.1 km
Ael-y-bryn Path — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







