Nantygarth Isaf, Bethania, Llanon, SY23 5NN
About Nantygarth Isaf
Nantygarth Isaf is a detached house in Bethania, Llanon, Llanon (SY23 5NN). It has a recorded floor area of 99 m² (around 1066 sq ft) and construction records dating it to 1950-1966. The latest certificate (February 2020) shows an F (score 32), near the bottom of the EPC scale. The rating has held steady at F across 3 certificates since August 2018. Between certificates, wall efficiency went from Very Poor to Good and roof efficiency went from Very Poor to Very Good; while window efficiency dropped from Good to Average and hot-water efficiency dropped from Average to Very Poor. The recommended improvements would lift it to B (score 82), a 4-band jump. Main heating runs on electricity.
Across 2003–2019, sale prices on this property compounded at 3.8% per year. Today's modelled estimate of £466,000 is 22.6% above the 2019 sale price. Last sale on file: £380,000 in April 2019. One historical planning record sits against the property in 2019.
Know exactly what you're buying at Nantygarth Isaf
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
Nantygarth Isaf's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls changed
Hot water system changed
Roof insulation improved
Heating system changed
Changed to a more efficient fuel source
Hot water system changed
Wall insulation improved
Loft insulation upgraded to recommended levels
Planning history
- Nov 2019OutbuildingFullIn report
Formation of an outdoor equestrian riding arena
- Documents
- 7 docs on file
- Reference
- A190609
What's in Nantygarth Isaf, Bethania, Llanon, SY23 5NN's planning history?
Refusals, disputes and full decisions on this property and nearby, in the report.
Sales history & valuation
Nantygarth Isaf valuation sits well clear of the typical sold price in this postcode.
£466,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.8% per year over 16 years.
£380,000
Growth on file: 3.8% per year over 16 years.
Sales timeline
3 April 2019Most recent
£380,000
+79.2%over 15 years29 July 2003
£212,000
Median price across the last 5 sales in SY23 5NN: £250,000 (2020–2008).
Nearby sales in SY23 5NN
Everything we know about Nantygarth Isaf, 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?

Similar properties nearby
The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.8 km
Bethania Crossroads — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.