12 Heol Morlais, Llangennech, Llanelli, SA14 8SZ
About 12 Heol Morlais
12 Heol Morlais is a five-bedroom detached house in Llangennech, Llanelli, Llanelli (SA14 8SZ). It has a recorded floor area of 243 m² (around 2616 sq ft), construction records dating it to 1950-1966 and council tax band E. The latest certificate (March 2023) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in June 2010 the rating was F, the property has climbed 2 bands since. Between certificates, roof efficiency went from Good to Very Good, hot-water efficiency went from Poor to Good and lighting went from Good to Very Good; while wall efficiency dropped from Good to Very Poor. The recommended improvements would lift it to B (score 81), a 2-band jump.
At 243 m² the property is well over the postcode median (103 m² across 10 EPCs), placing it in the larger end of the local stock. 5 bedrooms is on the larger side for this postcode, where 3 is the typical count. Most recent transfer was March 2025 at £300,000 — fresh data. Across 2007–2025, sale prices on this property compounded at 1.2% per year. Today's modelled estimate of £375,000 is 25% above the 2025 sale price. On a £-per-square-foot basis, the last sale (£115/sq ft) was about 26.9% below the postcode norm.
What this property has
Inside
- Bedrooms5
- Bathrooms3
Energy performance
12 Heol Morlais'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 upgraded for better temperature management
Hot water system upgraded
Roof insulation improved
More low energy lighting installed
Planning history
12 Heol Morlais has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 1 thing worth checking at 12 Heol Morlais
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
Latest sale on 12 Heol Morlais was the highest on Land Registry record across the postcode.
£375,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.2% per year over 17 years.
£300,000
Growth on file: 1.2% per year over 17 years.
Sales timeline
30 March 2025Most recent
£300,000
+22.4%over 17 years7 December 2007
£245,000
Median price across the last 5 sales in SA14 8SZ: £271,000 (2023–2020).
Nearby sales in SA14 8SZ
21 Heol Morlais, Llangennech, Llanelli, SA14 8SZ
Sold Nov 2023
£275,0003 Heol Morlais, Llangennech, Llanelli, SA14 8SZ
Sold Jun 2023
£271,0009 Heol Morlais, Llangennech, Llanelli, SA14 8SZ
Sold Mar 2022
£250,0005 Heol Morlais, Llangennech, Llanelli, SA14 8SZ
Sold Jan 2019
£160,00017 Heol Morlais, Llangennech, Llanelli, SA14 8SZ
Sold Sept 2016
£138,000
Versus other Heol Morlais homes
12 Heol Morlais is notably below the street on price per m².
Price per m²
£1,235
Street avg £1,919
Floor Area
243 m²
Street avg 105 m²
Habitable Rooms
8 rooms
Street avg 6 rooms
CO₂ Emissions
8.1 t/year
Street avg 4.3 t/year
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
3/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Heol Plas Isaf — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.







