4 Heol Islwyn, Llanrhystud, SY23 5BW
About 4 Heol Islwyn
4 Heol Islwyn is a semi-detached house in Llanrhystud (SY23 5BW). It has a recorded floor area of 87 m² (around 936 sq ft) and construction records dating it to 1991-1995. The latest certificate (November 2023) shows an E (score 39), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 60). Main heating runs on dual fuel.
It hasn't traded since August 2007, a hold of 19 years that's notably long for the area. That sale landed at the peak of the pre-credit-crunch market, which is a useful reference point when interpreting the price. It lags the bulk of the postcode on energy efficiency (less efficient than 83% of similar EPCs). Today's modelled estimate of £178,000 is 22.8% above the 2007 sale price. On a £-per-square-foot basis, the last sale (£155/sq ft) was about 20.4% above the typical sold price in the postcode.
Know exactly what you're buying at 4 Heol Islwyn
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 Heol Islwyn's carbon output runs well above what efficient homes in the postcode produce.
EPC Rating
Planning history
4 Heol Islwyn has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
The latest sale landed at the peak of the pre-credit-crunch market — a high-water reference point.
£178,000
Modelled from EPC, postcode comparables.
£145,000
Recorded with HM Land Registry.
Sales timeline
16 August 2007Most recent
£145,000
Median price across the last 5 sales in SY23 5BW: £155,000 (2024–2017).
Nearby sales in SY23 5BW
Everything we know about 4 Heol Islwyn, 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 Heol Islwyn homes
4 Heol Islwyn is notably below the street on epc rating.
Price per m²
£1,667
Street avg £1,551
Floor Area
87 m²
Street avg 92 m²
Habitable Rooms
5 rooms
Street avg 5 rooms
CO₂ Emissions
6.1 t/year
Street avg 4.8 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
Heol Islwyn — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.