2 Llys Y Dderwen, School Road, Llangain, Carmarthen, SA33 5AE
About 2 Llys Y Dderwen
2 Llys Y Dderwen is a semi-detached house in Llangain, Carmarthen, Carmarthen (SA33 5AE). It has a recorded floor area of 170 m² (around 1830 sq ft), construction records dating it to 2023 and council tax band D. The latest certificate (January 2025) returns a B (score 81), comfortably above the UK average. When first surveyed in July 2009 the rating was C, the property has climbed 1 band since. Between certificates, wall efficiency went from Good to Very Good, window efficiency went from Good to Very Good and main heating went from Average to Good. Main heating runs on electricity: electricity, unspecified tariff.
Across 2009–2023, sale prices on this property compounded at 1.6% per year. Today's modelled estimate of £294,000 sits 58.9% above the 2023 sale of £185,000. On a £-per-square-foot basis, the last sale (£101/sq ft) was about 40.4% below the postcode norm. At 170 m² it's 20.6% larger than the typical home in the postcode (141 m² median across 9 EPCs). Its energy rating outperforms most of the postcode (better than 89% of similar EPCs). Most recent transfer: June 2023 at £185,000.
Know exactly what you're buying at 2 Llys Y Dderwen
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heat pump installed, significantly improving energy efficiency
Changed to a more efficient fuel source
Heating controls upgraded for better temperature management
High performance glazing installed
Wall insulation improved
Planning history
2 Llys Y Dderwen has no planning applications on record.
Notable planning nearby
4applications of note in the surrounding area
We flagged 1 thing worth checking at 2 Llys Y Dderwen
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
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Sales history & valuation
£294,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.6% per year over 14 years.
£185,000
Growth on file: 1.6% per year over 14 years.
Sales timeline
29 June 2023Most recent
£185,000
+23.3%over 3 years11 December 2019
£150,000
15 September 2009
£149,500
Median price across the last 5 sales in SA33 5AE: £347,500 (2024–2018).
Nearby sales in SA33 5AE
Old School House, School Road, Llangain, Carmarthen, SA33 5AE
Sold Aug 2024
£310,000Parsons Lea, School Road, Llangain, Carmarthen, SA33 5AE
Sold Jul 2024
£575,000Brynderwen, School Road, Llangain, Carmarthen, SA33 5AE
Sold Oct 2022
£450,000Southlea, School Road, Llangain, Carmarthen, SA33 5AE
Sold Jan 2020
£347,500Tafarn Pantydderwen, Flat, School Road, Llangain, Carmarthen, SA33 5AE
Sold Oct 2018
£155,000
Everything we know about 2 Llys Y Dderwen, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby

Versus other School Road homes
2 Llys Y Dderwen outperforms the street on epc rating by a wide margin.
Price per m²
£1,088
Street avg £1,842
Floor Area
170 m²
Street avg 153 m²
CO₂ Emissions
2.7 t/year
Street avg 6.9 t/year
Years Held
3 years
Street avg 7 years
Similar properties nearby
1 Dol Y Dderwen, Llangain
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1 Llys Y Dderwen, School Road, Llangain
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SA33 5HR
1 Cwrt Melin, Bancyfelin
SA33 5NB
1 Brondeg Cottages, Llansteffan
SA33 5JJ
1 Innisfree Cottages, Llansteffan
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1 Cwmclyd, Llansteffan
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The neighbourhood at a glance
Crime
4/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Llangain Primary School — bus stop.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.