10 Bryn Onnen, Pontardawe, Swansea, SA8 4LH
About 10 Bryn Onnen
10 Bryn Onnen is a detached house in Pontardawe, Swansea, Swansea (SA8 4LH). It has a recorded floor area of 265 m² (around 2852 sq ft), construction records dating it to 1967-1975 and council tax band F. The latest certificate (June 2016) shows a C (score 77), near the top of the C band. When first surveyed in October 2009 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Poor to Good, roof efficiency went from Very Poor to Good and window efficiency went from Average to Good. The recommended improvements would push it to B (score 86). The latest certificate is from June 2016, so improvements made since then won't be reflected.
At 265 m² the property is well over the postcode median (88 m² across 6 EPCs), placing it in the larger end of the local stock. One historical planning record sits against the property in 2001.
Energy performance
10 Bryn Onnen's carbon output runs well above what efficient homes in the postcode produce.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 06 Jun 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system upgraded
Window efficiency improved
Cavity wall insulation installed
Loft insulation upgraded to recommended levels
More low energy lighting installed
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Planning history
1 application on record at 10 Bryn Onnen, Pontardawe, Swansea, SA8 4LH
- Mar 2001RenovationOutcome in report
ALTERATION OF EXISTING VEHICULAR ACCESS AND WALL
- Council
- North
- Reference
- P2001/0196
Unlock 10 Bryn Onnen, Pontardawe, Swansea, SA8 4LH's full planning history
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- Every decision — granted, refused or withdrawn (1 on record)
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Sales history & valuation
10 Bryn Onnen has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£401,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SA8 4LH: £219,950 (2025–2019).
Nearby sales in SA8 4LH
9 Bryn Onnen, Pontardawe, Swansea, SA8 4LH
Sold Oct 2025
£245,0006 Bryn Onnen, Pontardawe, Swansea, SA8 4LH
Sold May 2024
£310,0005 Bryn Onnen, Pontardawe, Swansea, SA8 4LH
Sold Jul 2022
£219,9502 Bryn Onnen, Pontardawe, Swansea, SA8 4LH
Sold Dec 2014
£155,0001 Bryn Onnen, Pontardawe, Swansea, SA8 4LH
Sold Sept 2014
£210,000
Versus other Bryn Onnen homes
10 Bryn Onnen outperforms the street on epc rating by a wide margin.
EPC Rating
77 (C)
Street avg 68 (D)
Floor Area
265 m²
Street avg 101 m²
CO₂ Emissions
7.3 t/year
Street avg 3.6 t/year
Habitable Rooms
9 rooms
Street avg 6 rooms
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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
Alltywerin — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







