Gwynfryn, Brecon Road, Penycae, Swansea, SA9 1YR
About Gwynfryn
Gwynfryn is a detached house in Penycae, Swansea, Swansea (SA9 1YR). It has a recorded floor area of 99 m² (around 1066 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (May 2018) shows an E (score 46), well below the UK norm with real room to improve. When first surveyed in June 2013 the rating was F, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good; while hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would lift it to A (score 97), a 4-band jump. Main heating runs on oil.
Today's modelled estimate of £256,000 sits 70.7% above the 2019 sale of £150,000. On a £-per-square-foot basis, the last sale (£141/sq ft) was about 27.4% above the typical sold price in the postcode. At 99 m² it sits well below the postcode median (187 m² across 12 EPCs), making it one of the more compact homes locally. Most recent transfer: November 2019 at £150,000. One historical planning record sits against the property in 2006.
Know exactly what you're buying at Gwynfryn
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Gwynfryn's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Changed to a more efficient fuel source
Hot water system upgraded
Wall insulation improved
Loft insulation upgraded to recommended levels
Planning history
- Sept 2006
We flagged 1 thing worth checking at Gwynfryn
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
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Sales history & valuation
Gwynfryn changed hands twice within eighteen months — unusual for the area.
£256,000
Modelled from EPC, postcode comparables.
£150,000
Recorded with HM Land Registry.
Sales timeline
6 November 2019Most recent
£150,000
3 October 2019
£150,000
Median price across the last 5 sales in SA9 1YR: £192,250 (2022–2017).
Nearby sales in SA9 1YR
9 Riverside Gardens, Brecon Road, Penycae, Swansea, SA9 1YR
Sold Feb 2022
£345,00010 Riverside Gardens, Brecon Road, Penycae, Swansea, SA9 1YR
Sold Feb 2020
£295,000Golwg Yr Haul, Brecon Road, Penycae, Swansea, SA9 1YR
Sold Sept 2018
£192,250Coed Y Brain, Brecon Road, Penycae, Swansea, SA9 1YR
Sold Jun 2017
£120,000Pen Y Cae Lodge, Brecon Road, Penycae, Swansea, SA9 1YR
Sold Apr 2017
£191,000
Everything we know about Gwynfryn, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other Brecon Road homes
Gwynfryn is notably below the street on floor area.
Price per m²
£1,515
Street avg £1,227
Floor Area
99 m²
Street avg 179 m²
Habitable Rooms
5 rooms
Street avg 7 rooms
CO₂ Emissions
7.3 t/year
Street avg 8.9 t/year
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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Ynyswen — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.