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
The true value, the hidden risks and the full sale history, in one report.
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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
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.
£394,000
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.
Pick your report · every report is £14.99
One time fee only - money back guarantee
The data behind every report
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The neighbourhood at a glance
Crime
2/mo
Steady 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.