12 Bryn Deri Close, Penllergaer, Swansea, SA4 9AG
About 12 Bryn Deri Close
12 Bryn Deri Close is a detached house in Penllergaer, Swansea, Swansea (SA4 9AG). It has a recorded floor area of 145 m² (around 1561 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (November 2016) shows an E (score 51), well below the UK norm with real room to improve. The rating has held steady at E across 3 certificates since July 2016. Between certificates, lighting went from Very Poor to Good; while roof efficiency dropped from Good to Very Poor and hot-water efficiency dropped from Average to Poor. The recommended improvements would lift it to A (score 93), a 4-band jump.
On a £-per-square-foot basis, the last sale (£231/sq ft) was about 81% above the typical sold price in the postcode. Last sale on file: £360,000 in August 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Everything you need to know about 12 Bryn Deri Close
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Energy performance
12 Bryn Deri Close's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Certificate validity
Valid until 8 November 2026
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency decreased
More low energy lighting installed
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Planning history
12 Bryn Deri Close 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
Latest sale on 12 Bryn Deri Close was the highest on Land Registry record across the postcode.
£391,000
Modelled from EPC, postcode comparables.
£360,000
Recorded with HM Land Registry.
Sales timeline
18 August 2022Most recent
£360,000
Median price across the last 5 sales in SA4 9AG: £185,000 (2025–2003).
Nearby sales in SA4 9AG
4 Bryn Deri Close, Penllergaer, Swansea, SA4 9AG
Sold May 2025
£313,0007 Bryn Deri Close, Penllergaer, Swansea, SA4 9AG
Sold Jan 2015
£185,0002 Bryn Deri Close, Penllergaer, Swansea, SA4 9AG
Sold Sept 2003
£180,0006 Bryn Deri Close, Penllergaer, Swansea, SA4 9AG
Sold Feb 2003
£130,0005 Bryn Deri Close, Penllergaer, Swansea, SA4 9AG
Sold Jul 2000
£95,500
Versus other Bryn Deri Close homes
12 Bryn Deri Close is notably below the street on epc rating.
Price per m²
£2,483
Street avg £1,777
Floor Area
145 m²
Street avg 152 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
7.8 t/year
Street avg 7.5 t/year
Everything you need to know about 12 Bryn Deri Close
The true value, the hidden risks and the full sale history, in one report.
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The neighbourhood at a glance
Crime
160/mo
Falling year-on-year across the wider district.
Nearest stop
0.3 km
Parc Penllergaer — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.