1 Pen Sarn, Heol Sant Cynog, Ystradgynlais, Swansea, SA9 1BR
About 1 Pen Sarn
1 Pen Sarn is a detached house in Ystradgynlais, Swansea, Swansea (SA9 1BR). It has a recorded floor area of 116 m² (around 1249 sq ft). The latest certificate (March 2016) returns a B (score 84), comfortably above the UK average. The recommended improvements would push it to A (score 93). The latest certificate is from March 2016, so improvements made since then won't be reflected.
Today's modelled estimate of £282,000 sits 71% above the 2016 sale of £164,950. 10 years since the last transfer (March 2016).
Know exactly what you're buying at 1 Pen Sarn
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
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 15 Mar 2026
EPC Rating
Planning history
1 Pen Sarn has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at 1 Pen Sarn
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
£282,000
Modelled from EPC, postcode comparables.
£164,950
Recorded with HM Land Registry.
Sales timeline
22 March 2016Most recent
£164,950
Median price across the last 2 sales in SA9 1BR: £187,500 (2007–2007).
Everything we know about 1 Pen Sarn, 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

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The neighbourhood at a glance
Crime
6/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Heol Eglwys — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.