Llwynglas, Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH
About Llwynglas
Llwynglas is a semi-detached house in Cwmgwili, Llanelli, Llanelli (SA14 6PH). It has a recorded floor area of 74 m² (around 797 sq ft) and construction records dating it to 1900-1929. The latest certificate (March 2024) shows an E (score 50), well below the UK norm with real room to improve. The rating has held steady at E across 2 certificates since February 2010. Between certificates, lighting dropped from Very Good to Good. The recommended improvements would lift it to A (score 108), a 4-band jump. Main heating runs on oil.
Across 2003–2015, sale prices on this property compounded at 4.3% per year. Today's modelled estimate of £157,000 sits 118.1% above the 2015 sale of £72,000. Last sold in December 2015, so it's been off the market for around 10 years. Across the public record there are 4 sales, relatively high churn for a single property.
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Planning history
Llwynglas has no planning applications on record.
Notable planning nearby
4applications of note in the surrounding area
We flagged 1 thing worth checking at Llwynglas
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
Llwynglas's estimated value is more than triple its earliest registered sale price (2003).
£157,000
Modelled from EPC, postcode comparables and a sale-price growth of 4.3% per year over 13 years.
£72,000
Growth on file: 4.3% per year over 13 years.
Sales timeline
23 December 2015Most recent
£72,000
-12.2%18 December 2015
£82,000
+7.9%over 4 years10 February 2011
£76,000
+81.0%over 8 years30 January 2003
£42,000
Median price across the last 5 sales in SA14 6PH: £180,000 (2025–2023).
Nearby sales in SA14 6PH
5 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH
Sold Nov 2025
£210,0009 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH
Sold Feb 2025
£180,000Aely Bryn, Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH
Sold Mar 2024
£137,000Maes Y Gelli, Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH
Sold Nov 2023
£200,0001 Heol Y Deri, Cwmgwili, Llanelli, SA14 6PH
Sold Oct 2023
£170,000
Versus other Heol Y Deri homes
On floor area, Llwynglas runs well behind the street norm.
Price per m²
£973
Street avg £1,394
Floor Area
74 m²
Street avg 86 m²
Habitable Rooms
4 rooms
Street avg 5 rooms
CO₂ Emissions
5.2 t/year
Street avg 6.2 t/year
Similar properties nearby
1 Danybanc, Pontardulais Road, Cross Hands
SA14 6PB
1 Banc Y Gors, Upper Tumble
SA14 6BR
1 Clos Pen Y Waun, Cross Hands
SA14 6SQ
1 Darren Las, Upper Tumble
SA14 6DL
1 Clos Y Waun, Cross Hands
SA14 6NN
1 Clos Y Gwendraeth, Gorslas
SA14 6DJ
1 Clos Y Delfryn, Tumble
SA14 6EN
1 Craig Y Llety, Upper Tumble
SA14 6BZ
The neighbourhood at a glance
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Cwmgwili Playground — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.







