20 Heol Y Dre, Cefneithin, Llanelli, SA14 7DR
About 20 Heol Y Dre
20 Heol Y Dre is a semi-detached house in Cefneithin, Llanelli, Llanelli (SA14 7DR). It has a recorded floor area of 110 m² (around 1184 sq ft), construction records dating it to 1900-1929 and council tax band C. The latest certificate (November 2025) returns a B (score 82), comfortably above the UK average. When first surveyed in October 2010 the rating was G, the property has climbed 5 bands since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Average to Very Good and hot-water efficiency went from Very Poor to Average; while window efficiency dropped from Average to Poor. Main heating runs on electricity.
At 110 m² it's 15.2% larger than the typical home in the postcode (96 m² median across 22 EPCs). On energy efficiency it sits in the top 10% of properties in this postcode. Across 2021–2024, sale prices on this property compounded at 1% per year. Today's modelled estimate of £278,000 is 44% above the 2024 sale price. On a £-per-square-foot basis, the last sale (£163/sq ft) was about 29.5% above the typical sold price in the postcode. Sold August 2024 for £193,000. One historical planning record sits against the property in 2007.
Energy performance
20 Heol Y Dre ranks among the most efficient homes in the postcode for energy use.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water efficiency improved
Loft insulation upgraded to recommended levels
More low energy lighting installed
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Hot water efficiency improved
Wall insulation improved
Roof insulation improved
Low energy lighting percentage decreased
Planning history
- Apr 2007OutlineIn report
SITING OF ONE DWELLING AT LAND ADJACENT TO NO 20 HEOL Y DRE
- Documents
- 3 docs on file
- Reference
- W/15017
We flagged 1 thing worth checking at 20 Heol Y Dre
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
30-day money-back guarantee
Sales history & valuation
20 Heol Y Dre valuation sits well clear of the typical sold price in this postcode.
£278,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.0% per year over 3 years.
£193,000
Growth on file: 1.0% per year over 3 years.
Sales timeline
22 August 2024Most recent
£193,000
+3.2%over 3 years13 May 2021
£187,000
Median price across the last 5 sales in SA14 7DR: £280,000 (2025–2021).
Nearby sales in SA14 7DR
27b, Heol Y Dre, Cefneithin, Llanelli, SA14 7DR
Sold Mar 2025
£725,00015 Heol Y Dre, Cefneithin, Llanelli, SA14 7DR
Sold Feb 2025
£280,00031 Heol Y Dre, Cefneithin, Llanelli, SA14 7DR
Sold Feb 2023
£239,95019a, Heol Y Dre, Cefneithin, Llanelli, SA14 7DR
Sold Oct 2021
£285,00026 Heol Y Dre, Cefneithin, Llanelli, SA14 7DR
Sold Aug 2021
£85,910
Versus other Heol Y Dre homes
CO₂ Emissions for 20 Heol Y Dre runs comfortably ahead of the street norm.
Price per m²
£1,755
Street avg £1,563
Floor Area
110 m²
Street avg 137 m²
Habitable Rooms
6 rooms
Street avg 6 rooms
CO₂ Emissions
0.5 t/year
Street avg 6.7 t/year
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The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Garreg Hollt — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.







