Istwyn Barn, Lon Cwrt Ynyston, Leckwith, Cardiff, CF11 8DR
About Istwyn Barn
Istwyn Barn is a four-bedroom semi-detached house in Leckwith, Cardiff, Cardiff (CF11 8DR). It has a recorded floor area of 272 m² (around 2928 sq ft) and construction records dating it to 2003-2006. The latest certificate (September 2024) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since May 2011. Between certificates, window efficiency went from Average to Good and lighting went from Very Poor to Very Good; while roof efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 83), a 2-band jump. Main heating runs on oil. Other recorded features include outbuildings. Period features are noted in the property record.
Held since May 2005 — that's 21 years off the open market, well above the local norm. Today's modelled estimate of £492,000 sits 251.4% above the 2005 sale of £140,000.
What this property has
Inside
- Bedrooms4
- Bathrooms3
- Open-plan layoutYes
- Dining roomYes
- EnsuiteYes
Outside
- GarageYes
- OutbuildingsYes
Building
- Period featuresYes
- RefurbishedYes
Energy performance
Istwyn Barn'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
Window efficiency improved
Floor insulation added or improved
More low energy lighting installed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply and has permanent outbuildings, we believe a Level 3 building survey should be considered.
From £1,020 · Includes VAT
Planning history
Istwyn Barn has no planning applications on record.
A planning report still maps activity across the surrounding area and reads this property's extension & conversion potential.
Sales history & valuation
Istwyn Barn's estimated value is more than triple its earliest registered sale price (2005).
£492,000
Modelled from EPC, postcode comparables.
£140,000
Recorded with HM Land Registry.
Sales timeline
19 May 2005Most recent
£140,000
Median price across the last 2 sales in CF11 8DR: £200,000 (2007–2000).
Similar properties nearby
The neighbourhood at a glance
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Woodlands — bus stop.
Go deeper on the local area
A Local Area report breaks down crime, transport links, schools and air quality in depth.







