3a, Brynffynon Road, Gorseinon, Swansea, SA4 4XJ
About 3a
3a is a detached house in Gorseinon, Swansea, Swansea (SA4 4XJ). It has a recorded floor area of 141 m² (around 1518 sq ft), construction records dating it to 2003-2006 and council tax band F. The latest certificate (March 2015) shows a C (score 74). The recommended improvements would push it to B (score 85). The latest certificate is from March 2015, so improvements made since then won't be reflected.
At 141 m² the property is well over the postcode median (94 m² across 7 EPCs), placing it in the larger end of the local stock. Today's modelled estimate of £335,000 sits 57.3% above the 2015 sale of £213,000. Last changed hands 11 years ago, in November 2015. One historical planning record sits against the property in 2022.
Energy performance
3a's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 13 Mar 2025
EPC Rating
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Planning history
1 application on record at 3a, Brynffynon Road, Gorseinon, Swansea, SA4 4XJ
- Feb 2022ExtensionOutlineOutcome in report
Extension: Single storey · Rear of property
Single storey rear extension and 1.4m high rear fence and access gate (Application for a Certificate of Proposed Lawful Development)
- Documents
- 15 docs on file
- Reference
- 2021/2839/PLD
Unlock 3a, Brynffynon Road, Gorseinon, Swansea, SA4 4XJ's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
- All 1 application on this property in full, plus 1 notable nearby
- The 15 documents, officer reports & conditions
- What the pattern means for extending or converting here
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Sales history & valuation
Latest sale on 3a was the highest on Land Registry record across the postcode.
£335,000
Modelled from EPC, postcode comparables.
£213,000
Recorded with HM Land Registry.
Sales timeline
4 November 2015Most recent
£213,000
Median price across the last 5 sales in SA4 4XJ: £140,000 (2023–2014).
Nearby sales in SA4 4XJ
10 Brynffynon Road, Gorseinon, Swansea, SA4 4XJ
Sold Jun 2023
£185,0009 Brynffynon Road, Gorseinon, Swansea, SA4 4XJ
Sold Aug 2021
£147,00018 Brynffynon Road, Gorseinon, Swansea, SA4 4XJ
Sold Sept 2020
£140,00012 Brynffynon Road, Gorseinon, Swansea, SA4 4XJ
Sold Jan 2015
£125,0007 Brynffynon Road, Gorseinon, Swansea, SA4 4XJ
Sold Feb 2001
£59,950
Versus other Brynffynon Road homes
3a outperforms the street on epc rating by a wide margin.
Price per m²
£1,511
Street avg £1,640
Floor Area
141 m²
Street avg 102 m²
Habitable Rooms
7 rooms
Street avg 5 rooms
CO₂ Emissions
3.7 t/year
Street avg 3.6 t/year
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The neighbourhood at a glance
Crime
2/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Brynffynnon Road — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







