4 Swn Yr Efail, Pennant, Llanon, SY23 5AJ
About 4 Swn Yr Efail
4 Swn Yr Efail is a semi-detached house in Pennant, Llanon, Llanon (SY23 5AJ). It has a recorded floor area of 128 m² (around 1378 sq ft), construction records dating it to 2007 onwards and council tax band C. The latest certificate (December 2008) shows a D (score 62), on the cusp of jumping into the C band. Main heating runs on lpg. The latest certificate is from December 2008, so improvements made since then won't be reflected.
Held since April 2009 — that's 17 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. At 128 m² it sits well below the postcode median (198 m² across 6 EPCs), making it one of the more compact homes locally. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). Today's modelled estimate of £208,000 is 41% above the 2009 sale price.
Know exactly what you're buying at 4 Swn Yr Efail
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
4 Swn Yr Efail'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This certificate is over 10 years old and is no longer valid.Expired 17 Dec 2018
EPC Rating
Planning history
4 Swn Yr Efail has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
The latest sale fell during the post-2008 dip, often a low-water mark in price comparisons.
£208,000
Modelled from EPC, postcode comparables.
£147,500
Recorded with HM Land Registry.
Sales timeline
16 April 2009Most recent
£147,500
Median price across the last 5 sales in SY23 5AJ: £200,000 (2023–2012).
Nearby sales in SY23 5AJ
7 Swn Yr Efail, Pennant, Llanon, SY23 5AJ
Sold Mar 2023
£408,0002 Swn Yr Efail, Pennant, Llanon, SY23 5AJ
Sold Sept 2021
£125,0005 Swn Yr Efail, Pennant, Llanon, SY23 5AJ
Sold Jan 2020
£380,0001 Swn Yr Efail, Pennant, Llanon, SY23 5AJ
Sold Feb 2013
£113,0006 Swn Yr Efail, Pennant, Llanon, SY23 5AJ
Sold Nov 2012
£250,000
Everything we know about 4 Swn Yr Efail, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?

Versus other Swn Yr Efail homes
4 Swn Yr Efail outperforms the street on years held by a wide margin.
Price per m²
£1,152
Street avg £1,169
Floor Area
128 m²
Street avg 195 m²
Habitable Rooms
4 rooms
Street avg 7 rooms
CO₂ Emissions
2.7 t/year
Street avg 4.7 t/year
Similar properties nearby
The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Post Office — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.